90 results on '"Flausino, Walter"'
Search Results
52. Oocyst shedding by green-winged-saltator (Saltator similis) in the diagnostic of coccidiosis and Isospora similisi n. sp. (Apicomplexa: Eimeriidae)
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Coelho, Cleide Domingues, primary, Berto, Bruno Pereira, additional, Neves, Daniel Medeiros, additional, Oliveira, Vinícius Modesto de, additional, Flausino, Walter, additional, and Lopes, Carlos Wilson Gomes, additional
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- 2013
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53. Infection by Toxoplasma gondii in Neotropical non-human primates
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Pires, Juliana S., primary, Ribeiro, Carlos T., additional, Carvalho Filho, Paulo Roberto de, additional, Pissinatti, Alcides, additional, Flausino, Walter, additional, and Lopes, Carlos Wilson G., additional
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- 2012
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54. Isosporoid Coccidia (Apicomplexa: Eimeriidae) parasites of tanagers (Passeriformes: Thraupidae) from the Marambaia Island, Brazil
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Berto, Bruno P., primary, Luz, Hermes R., additional, Flausino, Walter, additional, Teixeira-Filho, Walter L., additional, Ferreira, Ildemar, additional, and Lopes, Carlos Wilson G., additional
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- 2011
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55. Isospora coerebae n. sp. (Apicomplexa: Eimeriidae) from the bananaquit Coereba flaveola (Passeriformes: Coerebidae) in South America
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Berto, Bruno Pereira, primary, Flausino, Walter, additional, Luz, Hermes Ribeiro, additional, Ferreira, Ildemar, additional, and Lopes, Carlos Wilson Gomes, additional
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- 2011
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56. Isospora bocamontensis n. sp. (Apicomplexa: Eimeriidae) from the yellow cardinal Gubernatrix cristata (Vieillot) (Passeriformes: Emberizidae) in South America
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Pereira, Larissa Q., primary, Berto, Bruno P., additional, Flausino, Walter, additional, Lovato, Maristela, additional, and Lopes, Carlos W. G., additional
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- 2010
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57. Isospora ramphoceli n. sp. (Apicomplexa: Eimeriidae) from the Brazilian tanager (Aves: Passeriformes: Thraupidae) Ramphocelus bresilius dorsalis Sclater, 1855
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BERTO, BRUNO PEREIRA, primary, FLAUSINO, WALTER, additional, LUZ, HERMES RIBEIRO, additional, FERREIRA, ILDEMAR, additional, and LOPES, CARLOS WILSON GOMES, additional
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- 2010
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58. Neospora caninum seropositivity in cattle breeds in the South Fluminense Paraíba Valley, state of Rio de Janeiro
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Munhoz, Alexandre D., primary, Pereira, Maria Júlia S., additional, Flausino, Walter, additional, and Lopes, Carlos Wilson G., additional
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- 2009
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59. Sarcocystis cruzi (Apicomplexa: Sarcocystidae) no cachorro-do-mato (Cerdocyon thous)
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Rodrigues, Janaina S., primary, Meireles, Gisele S., additional, Carvalho Filho, Paulo R., additional, Ribeiro, Carlos T., additional, Flausino, Walter, additional, and Lopes, Carlos Wilson G., additional
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- 2008
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60. Contribution on the study of Isospora hemidactyli Carini, 1936 and a report of an adeleid pseudoparasite of the house gecko Hemidactylus mabouia, from the Rio de Janeiro Metropolitan Region, Brazil
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Berto, Bruno P., primary, Lopes, Bruno do B., additional, Flausino, Walter, additional, Teixeira Filho, Walter L., additional, and Lopes, Carlos Wilson G., additional
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- 2008
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61. Eimeria divinolimai sp. n. (Apicomplexa: Eimeriidae) in the rufous casiornis Casiornis rufus Vieillot, 1816 (Passeriformes: Tyrannidae) in Brazil
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Berto, Bruno P., primary, Flausino, Walter, additional, Ferreira, Ildemar, additional, and Lopes, Carlos Wilson G., additional
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- 2008
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62. Pleomorfismo de oocistos de Cystoisospora felis (Wenyon, 1923) Frenkel, 1977 (Apicomplexa: Cystoisosporinae) induzido por differentes fontes de infecção
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Medeiros, Simoni Machado de, primary, Loss, Zelson Giacomo, additional, Flausino, Walter, additional, and Lopes, Carlos Wilson Gomes, additional
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- 2007
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63. Soroprevalência de Borrelia burgdorferi latu sensu associada à presença de carrapatos em cães de áreas rurais do Estado do Rio de Janeiro, Brasil
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O'Dwyer, Lucia Helena, primary, Soares, Cleber Oliveira, additional, Massard, Carlos Luiz, additional, Souza, José Carlos Pereira de, additional, Flausino, Walter, additional, and Fonseca, Adivaldo Henrique da, additional
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- 2004
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64. Variações intraespecíficas de taquizoítos do Toxoplasma gondii (Apicomplexa: Toxoplasmatinae) isolados de uma infecção natural e comparadas frente a cepa congênita
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Flausino, Walter, primary, Soares, Cleber Oliveira, additional, Freire, Ronald Bastos, additional, and Lopes, Carlos Wilson Gomes, additional
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- 1998
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65. Distribuição do Toxoplasma gondii Nicolle & Manceaux, 1909 (Apicomplexa: Toxoplasmatinae) em órgãos de camundongos albinos inoculados com uma amostra acistogênica: dados preliminares
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Albuquerque, George Rego, primary, Munhoz, Alexandre Dias, additional, Medeiros, Simoni Machado de, additional, Flausino, Walter, additional, and Lopes, Carlos Wilson Gomes, additional
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- 1996
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66. Risk factors associated with Toxoplasma gondii infection in dairy cattle, State of Rio de Janeiro.
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Albuquerque, George R., Munhoz, Alexandre D., Teixeira, Marcel, Flausino, Walter, de Medeiros, Simoni M., and Lopes, Carlos Wilson G.
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The article discusses a research study on Toxoplasma gondii infection and its possible risk factors among dairy cattle in the state of Rio de Janeiro, Brazil. Researchers selected 58 farms from the municipalities of Rio Claro and Resende in Rio de Janeiro based on information from the regional Company for Technical Rural Assistance (Emater) and blood samples of cattle were centrifuged for detecting anti-T. gondii antibodies through indirect immunoflorescence reaction (IFA). Analyzed were the differences in seroprevalence in cattle population through the Chi-square test. Risk factors univariate analysis showed contact of cats with cattle and cats with T. gonidd seroprevalence. Conclusions indicated association of cats with high infection risks and cattle age with T. gondii seroprevalence
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- 2011
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67. Evaluation of pomegranate (Punica granatum) pericarp aqueous extract on Eimeriaspp. from Japanese quails (Coturnix japonica)
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Berto, Bruno P., Borba, Helcio R., dos Santos, Hataânderson Luiz C., Lima, Viviane M., Flausino, Walter, Teixeira-Filho, Walter L., and Lopes, Carlos Wilson G.
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Antibacterial, anti-inflammatory and antiparasitic properties have been associated with the extract of pomegranate (Punica granatum) in several animals and conditions. The Japanese quail (Coturnix japonica), originated from North Africa, Europe and Asia, is used worldwide as an experimental animal and model for aviculture. The current study investigated the effects of the pomegranate pericarp aqueous extract on the shedding, viability and morphometry of three Eimeriaspp. from Japanese quails, besides the weight gain and genotoxic activity. Although the pomegranate is recognized by multiple properties, including anti-coccidial, in the current study the results are contrary. The treated group shed greater amount of oocysts; the sporulation times and viability were similar in both groups; despite some morphometric differences, these were not expressive; weight gains were similar; and the pomegranate had insignificant effect genotoxic. Finally, these results suggest that the pomegranate pericarp extract did not influence on Eimeiraspp. from Japanese quails; therefore, the pomegranate pericarp extract is not suggested in the prevention/treatment of coccidiosis in Japanese quails, or at least not using methods of preparation and administration applied in this study.
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- 2014
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68. Infection of Amblyomma ovalewith Rickettsiaspecies Atlantic rainforest in Serra do Mar, São Paulo State, Brazil
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Luz, Hermes Ribeiro, McIntosh, Douglas, Furusawa, Guilherme P., Flausino, Walter, Rozental, Tatiana, Lemos, Elba R.S., Landulfo, Gabriel A., and Faccini, João Luiz H.
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Rickettsia rickettsiiand Rickettsiasp. strain Atlantic rainforest, that is considered to represent a genetic variant of Rickettsia parkeri, are confirmed as being capable of infecting humans in Brazil. This study reports the detection and characterization, by PCR and nucleotide sequencing, of Rickettsiasp. strain Atlantic rain forest in Amblyomma ovaleparasitizing a human, in ticks infesting dogs and in free-living ticks collected from the environment where the human infestation was recorded. The data contribute to our knowledge of infection rates in A. ovalewith Rickettsiasp. strain Atlantic rainforest and identified an additional location in the state of São Paulo populated with ticks infected with this emerging pathogen.
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- 2016
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69. A new species of Amblyomma(Acari: Ixodidae) associated with monkeys and passerines of the Atlantic rainforest biome, Southeastern Brazil
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Martins, Thiago F., Luz, Hermes R., Muñoz-Leal, Sebastián, Ramirez, Diego G., Milanelo, Liliane, Marques, Sandro, Sanches, Thais C., Onofrio, Valeria C., da C.L.Acosta, Igor, Benatti, Hector R., Maturano, Ralph, de Oliveira, Philipe B., Albuquerque, George R., Marcili, Arlei, Flausino, Walter, Silveira, Luis F., McIntosh, Douglas, Faccini, João Luiz H., and Labruna, Marcelo B.
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Recent studies have reported several larvae of an unidentified Amblyommaspecies on passerine birds in Atlantic rainforest fragments in southeastern Brazil. These larvae yielded a unique 16S rRNA haplotype designated as Amblyommasp. haplotype Nazaré, which showed nucleotide identity levels of 91% to Amblyomma parkeriFonseca & Aragão, 1952 and 88% to Amblyomma longirostre(Koch, 1844). Herein, we describe Amblyommasp. haplotype Nazaré as a new species, Amblyomma romarioin. sp. Martins, Luz & Labruna, through a formal description of the male and female adult stages. Amblyomma romarioiis morphologically and genetically most closely related to A. parkeri, A. longirostreand Amblyomma geayiNeumann, 1899. Among males, the rectangular basis capituli and rounded coxa I spurs separates A. romarioifrom A. parkeri, A. longirostre,and A. geayi,which have basis capituli triangular or slightly hexagonal, and pointed coxa I spurs. Among females, the V-shaped genital aperture and coxa I rounded spurs of A. romarioicontrasts to the U-shaped genital aperture and coxa I pointed spurs in A. parkeri, A. longirostre,and A. geayi.Larvae of A. romarioihave been collected on 24 species of passerines. The few records of nymphs and adults were on the black-fronted titi monkey Callicebus nigrifrons(Spix, 1823). The current distribution of A. romarioiis restricted to the Brazilian Atlantic rainforest, southeastern Brazil, in areas with altitude between 363 and 1600 m, within the distribution of C. nigrifrons. We discuss ecological features of Amblyomma romarioi,comparatively to A. parkeri, A. longirostreand A. geayi.The present study increases the Brazilian tick fauna to 74 species.
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- 2019
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70. Isospora cagasebisp. nov. (Apicomplexa, Eimeriidae) from the bananaquit, Coereba flaveolaof Brazil
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Berto, Bruno Pereira, Flausino, Walter, Luz, Hermes Ribeiro, Ferreira, Ildemar, and Lopes, Carlos Wilson Gomes
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Isospora cagasebisp. nov. (Apicomplexa, Eimeriidae) is reported from a bananaquit, Coereba flaveolafrom Brazil. Oocysts are sub-spherical, 24.9 × 24.5 (23.0–26.1 × 22.6–25.4), with a smooth, bilayered wall ∼1.4 and mean L:W ratio 1.0; micropyle, oocyst residuum and polar granule are absent. Sporocysts are elongate ovoidal, 18.7 × 11.5 (17.6–19.4 × 10.4–12.3), with both Stieda and substieda bodies and mean L:W ratio 1.6; sporocyst residuum present and sporozoites each with 2 refractiles bodies.
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- 2008
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71. Associated factors in water buffaloes with soropositivity at Neospora caninum (Apicomplexa: Toxoplasmatinae) in the state of Rio de Janeiro, Brazil
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Galv?o, Gide?o da Silva, Lopes, Carlos Wilson Gomes, Flausino, Walter, Jesus, Vera L?cia Teixeira de, Berto, Bruno Pereira, Oliveira, Francisco Carlos Rodrigues de, and Cardozo, Sergian Vianna
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preval?ncia ,B?falos ,prevalence ,Water buffaloes ,neosporose ,neosporosis ,Medicina Veterin?ria - Abstract
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2020-02-07T15:14:08Z No. of bitstreams: 1 2014 - Gide?o da Silva Galv?o.pdf: 13814819 bytes, checksum: faa3b01e9bd8382de994358015c1c535 (MD5) Made available in DSpace on 2020-02-07T15:14:08Z (GMT). No. of bitstreams: 1 2014 - Gide?o da Silva Galv?o.pdf: 13814819 bytes, checksum: faa3b01e9bd8382de994358015c1c535 (MD5) Previous issue date: 2014-02-27 CAPES This study aimed to determine the presence of antibodies against Neospora caninum seropositivity and the distribution among the different age groups in buffalo herds located in the regions that comprise the state of Rio de Janeiro, Brazil. Serum samples from 270 buffaloes categorized into three ages: ? 2 years, 2 to ? 4 years, >5 years were tested by use of an immunofluorescent antibody test with a cutoff of 1:200. The Fisher exact test was used with a significance level of 5 %. The frequency of seropositive animals was 29.76% (86/289). Antibodies against N. caninum was detected in 14 (87.5 %) of 16 properties, with positive ranging from 3.57 to 100%. In the present study we observed differences in seropositivity according to different ages (p = 0.243), and animals aged more than five years had 2.62 greater chance of exposure. The results show the exposure of buffaloes to the agent in the regions studied, one should include the parasite in the differential diagnosis of possible cases of buffalo abortion, and highlights the need to adopt health measures for the control of infection in herds reviews. The final logistic regression model showed the influence of the age variable and the presence of cats across the seropositivity of water buffaloes which suggests that horizontal transmission is the main route of transmission in the properties analyzed. Este estudo teve como objetivo verificar a presen?a de anticorpos anti-Neospora caninum e a distribui??o entre a soropositividade nas diferentes faixas et?rias em rebanhos bubalinos localizados nas mesorregi?es que comp?em o estado do Rio de Janeiro, Brasil. A freq??ncia de animais soropositivos foi de 29,76% (86/289). Anticorpos contra-N. caninum foram detectados em 14 (87,5%) das 16 propriedades, com positividade variando de 3,57 a 100%. Foram analisados 289 animais, destes, 270 bubalinos puderam ser categorizados em tr?s estratos: ? 2 anos , 2 a ?4 anos, >5 anos e foram submetidas ? t?cnica de rea??o de imunofluoresc?ncia indireta com ponto de corte de 1:200, apresentando assim 27,41% de animais sororreagentes (74/270). O teste exato de Fisher foi utilizado com n?vel de signific?ncia de 5%. No presente estudo observaram-se diferen?as em rela??o ? soropositividade em fun??o das diferentes idades (p=0, 0243), e animais com idade superior a cinco anos apresentaram 2,62 mais chances de exposi??o ao agente. Os resultados obtidos evidenciam a exposi??o de bubalinos ao agente nas mesorregi?es estudadas, devendo-se incluir o parasito no diagn?stico diferencial nos poss?veis casos de abortamento bubalino, bem como evidencia a necessidade de ado??o de medidas sanit?rias para o controle da infec??o nos rebanhos avaliados. O modelo final de regress?o log?stica demonstrou a influ?ncia da vari?vel faixa et?ria e da presen?a de gatos frente ? soropositividade dos bubalinos o que sugere que a transmiss?o horizontal seja a principal rota de transmiss?o nas propriedades analisadas.
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- 2014
72. Los factores asociados con la infecci?n por Sarcocystis neurona, Neospora spp. y Toxoplasma gondii en los caballos de la microregi?n Serrana del estado de R?o de Janeiro
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Stelmann, Ulisses Jorge Pereira, Lopes, Carlos Wilson Gomes, Flausino, Walter, L?ss, Zelson Giacomo, Berto, Bruno Pereira, Munhoz, Alexandre Dias, and Oliveira, Francisco Carlos Rodrigues de
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Sarcocystis neurona ,Microrregi?o Serrana ,Serrana microregion ,Neospora caninum ,Toxoplasma gondii ,Cavalos ,Estado do Rio de Janeiro ,Horses ,Neospora hughesi ,Medicina Veterin?ria - Abstract
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2019-11-05T18:24:22Z No. of bitstreams: 1 2014 - Ulisses Jorge Pereira Stelmann.pdf: 2898011 bytes, checksum: 3008e74e285fcb83a0777dc7615797d0 (MD5) Made available in DSpace on 2019-11-05T18:24:22Z (GMT). No. of bitstreams: 1 2014 - Ulisses Jorge Pereira Stelmann.pdf: 2898011 bytes, checksum: 3008e74e285fcb83a0777dc7615797d0 (MD5) Previous issue date: 2014-02-21 CAPES Among the neurological diseases that affect horses, the protozoal myeloencephalitis (EPM) takes an outstanding position, which is characterized by infection of the central nervous system (CNS). The disease was initially attributed to Toxoplasma gondii, however, nowadays it is known that Sarcocystis neurona is the major causing agent of this disease. In spite of this, studies have shown the occurrence of clinical signs similar to those observed in the EPM by S. neurona in the neosporosis associated with the neurological form in horses, which is caused by the species Neospora caninum and Neospora hughesi. The aim of this study was to determine the seroprevalence of S. neurona, Neospora spp. and T. gondii in horses from Serrana microregion of the state of Rio de Janeiro, Brazil. This region is formed by the cities of Petr?polis, Sao Jos? do Vale do Rio Preto and Teres?polis. In addition, were verified the probable factors associated with the presence of these properties in the etiologic agents that participated in this cross sectional study. By convenience, were selected agricultural establishments with equine breeding, regardless of age, sex and race. The choice of animals was non random. Participated in the study 23 agricultural establishments with horse breeding, of which 19 belonged to Petr?polis, three from Teres?polis, and one from municipality of S?o Jos? do Vale do Rio Preto. Blood samples were collected from 375 horses, which were analyzed by indirect immunofluorescence assay (IFA) for antibodies against coccidia of interest in the study. There was a small number of seropositive subjects at three equine protozoal studied, 8.27% (31/375) of horses positive for S. neurona, 1.87% (7/375) on the Neospora spp. and 2.13% (8/375) on T. gondii. In conclusion, S. neurona infection was the most prevalent and presented a greater number of statistically significant results among the variables studied. Infection with Neospora spp. was related to properties with a history of abortion and those where the cats had access to horse?s food. In our study, none of the evaluated variables was statistically significant for T. gondii infection. Even in the presence of favorable conditions for the occurrence of definitive hosts of S. neurona, Neospora spp. and T. gondii, the sanitary conditions of animals and agricultural establishments analyzed contributed to a low occurrence of seropositive horses for the three etiological agents surveyed in the Serrana microregion of the state of Rio de Janeiro, Brazil. Dentre as enfermidades neurol?gicas que acometem equinos, a mieloencefalite por protozo?rio (EPM) assume posi??o de destaque, sendo caracterizada pela infec??o do sistema nervoso central (SNC). Inicialmente atribu?da a Toxoplasma gondii, por?m, sabe se hoje que Sarcocystis neurona ? o principal agente etiol?gico da enfermidade. Todavia, trabalhos demonstraram a ocorr?ncia de sinais cl?nicos, semelhantes ?queles observados na EPM por S. neurona, associados ? forma neurol?gica da neosporose em equinos, que ? causada pelas esp?cies, Neospora caninum e Neospora hughesi. O objetivo deste estudo foi determinar a soropreval?ncia para S. neurona, Neospora spp. e T. gondii, em equinos da microrregi?o Serrana do estado do Rio de Janeiro, constitu?da pelos munic?pios de Petr?polis, S?o Jos? do Vale do Rio Preto e Teres?polis, al?m de verificar os prov?veis fatores associados ? presen?a desses agentes etiol?gicos nas propriedades que participaram deste estudo transversal. Foram selecionados, por conveni?ncia, estabelecimentos agropecu?rios com cria??o de equinos, independentemente da idade, sexo e ra?a. A escolha dos animais foi realizada de forma n?o aleat?ria. Participaram desse estudo 23 estabelecimentos agropecu?rios com cria??o de equinos, dos quais 19 pertenciam a Petr?polis, tr?s a Teres?polis e um ao munic?pio de S?o Jos? do Vale do Rio Preto. Foram coletadas amostras de sangue de 375 equinos, as quais foram analisadas pela rea??o de imunofluoresc?ncia indireta (RIFI) para detec??o de anticorpos contra os cocc?dios de interesse do estudo. Observou se um baixo n?mero de equinos sororreagentes aos tr?s protozo?rios estudados, sendo 8,27% (31/375) dos equinos positivos para S. neurona, 1, 87% (7/375) para o Neospora spp. e 2,13% (8/375) para T. gondii. A infec??o por S. neurona foi a mais prevalente e a que apresentou um n?mero maior de resultados com signific?ncia estat?stica dentre as vari?veis pesquisadas. A infec??o por Neospora spp. esteve relacionada ? propriedades com hist?rico de abortamento e acesso de gatos aos alimentos dos equinos. Nas condi??es deste estudo, nenhuma das vari?veis avaliadas mostrou se estatisticamente significativa para a infec??o por T. gondii. Mesmo em presen?a de condi??es favor?veis para a ocorr?ncia dos hospedeiros definitivos de S. neurona, Neospora spp. e T. gondii, as condi??es higi?nico sanit?rias dos animais e dos estabelecimentos agropecu?rios analisados contribu?ram para uma baixa ocorr?ncia de equinos sororreagentes aos tr?s agentes etiol?gicos pesquisados na microrregi?o Serrana do estado do Rio de Janeiro.
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- 2014
73. Factors associated with Toxoplasma gondii seropositive dogs (NICOLLE AND MANCEAUX, 1908) Nicolle and Manceaux, 1909 (Apicomplexa: Toxoplasmatinae) in the city of Volta Redonda, microregion Middle Para?ba, RJ
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Rodrigues, Jana?na da Soledad, Lopes, Carlos Wilson Gomes, Flausino, Walter, Jesus, Vera L?cia Teixeira de, Berto, Bruno Pereira, Cardozo, Sergian Vianna, and Almeida, Elan Cardozo Paes de
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Toxoplasma gondii ,ELISA ,Volta Redonda ,fatores de risco ,Medicina Veterin?ria - Abstract
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2019-09-30T18:39:57Z No. of bitstreams: 1 2014 - Jana?na da Soledad Rodrigues.pdf: 3677463 bytes, checksum: 5142fac27d732343ff6730a58405b7f9 (MD5) Made available in DSpace on 2019-09-30T18:39:57Z (GMT). No. of bitstreams: 1 2014 - Jana?na da Soledad Rodrigues.pdf: 3677463 bytes, checksum: 5142fac27d732343ff6730a58405b7f9 (MD5) Previous issue date: 2014-02-19 CAPES CNPq Toxoplasmosis is a zoonosis of worldwide distribution, resulting from infection by Toxoplasma gondii, an obligate intracellular protozoan those humans, mammals and birds. Dogs have been focused, as indicators of environmental and human contamination, and due to the mechanical ability to act as hosts sporulated oocysts according to the habit of xenosmofilia.Thus, this study aimed to: (a) verify the occurrence of anti-T. gondii in dogs in the Middle Para?ba, Volta Redonda, State of Rio de Janeiro and (b) region determine the factors that are associated with natural infection with this etiologic agent in dogs in the region.To this end, serum samples from 297 dogs were collected in a region of the city, which were processed and tested for ELISA, the results were statistically evaluated for observation of possible risk factors related to T. gondii, comparing data obtained from applying a specific questionnaire. The prevalence of 43.8% positivity among the tested animals was observed. Factors such as diet, eating raw meat, access to the street, where the animal resided region, age and race were not statistically significant as risk factors for infection of T. gondii in the bivariate analysis, while sex and contact with cats were significant as risk factors for infection, with p = 0.03 and 0.00002, respectively. When we performed a multivariate analysis, race and contact with cats became significant, with p values = 0.0334 and 0.0000, respectively. Given our results, we can conclude that the likely source of infection in the dog studied in the city of Volta Redonda region is the ingestion of oocysts, since dogs that had contact with cats showed 3 times more likely to have seropositive T. gondii. Thus, it is understood that canine habit of Xesnomofilia should be better studied to clarify whether it may represent a risk factor for human infection. A toxoplasmose ? uma zoonose de distribui??o cosmopolita, decorrente da infec??o por Toxoplasma gondii, um protozo?rio intracelular obrigat?rio que acomete humanos, mam?feros e aves. C?es tem sido foco de estudo como indicadores de contamina??o humana e ambiental, e tamb?m devido ? capacidade de atuarem como hospedeiros mec?nicos de oocistos esporulados em fun??o do h?bito da xenosmofilia. Com isso, o presente estudo teve como objetivos: (a) Verificar a ocorr?ncia de anticorpos anti-T. gondii em c?es na regi?o do M?dio Para?ba, munic?pio de Volta Redonda, Estado do Rio de Janeiro e (b) determinar os fatores que estejam associados a infec??o natural por esse agente etiol?gico em c?es da regi?o. Para tal, foram coletadas 297 amostras de soro de c?es em uma regi?o do munic?pio, que foram processadas e testadas para ELISA, tendo sido os resultados avaliados estatisticamente para observa??o dos poss?veis fatores de risco ligados ? infec??o por T. gondii, confrontando dados obtidos a partir de aplica??o de um question?rio especifico. Foi observada uma preval?ncia de 43,8% de positividade entre os animais testados. Fatores como dieta, ingest?o de carne crua, acesso a rua, regi?o onde o animal residia, faixa et?ria e ra?a n?o foram estatisticamente significativos como fatores de risco para infec??o de T. gondii na an?lise bivariada, enquanto que o sexo e o contato com gatos mostraram-se significativos como fatores de risco para infec??o, com valores de p=0,03 e 0,00002, respectivamente. Ao realizarmos a an?lise multivariada, a ra?a e o contato com gatos foram as vari?veis significativas, sendo os valores de p=0,0334 e 0,0000, respectivamente. Frente aos resultados obtidos, pode-se concluir que a prov?vel fonte de infec??o canina na regi?o estudada dentro do munic?pio de Volta Redonda ? a ingest?o de oocistos esporulados, uma vez que c?es que tinham contato com gatos apresentaram 3 vezes mais chances de apresentarem soropositividade para T. gondii. Com isso, entende-se que o h?bito canino de Xesnomofilia deve ser melhor estudado a fim de esclarecer se o mesmo pode representar fator de risco para infec??o humana.
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- 2014
74. Toxoplasma Gondii (Nicolle e Manceaux, 1908) Nicole e Manceux, 1909 (Apicomplexa: Toxoplasmatinae): doen?as intercorrentes em c?es sororreagentes provenientes do Rio de Janeiro, RJ
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Leal, Paulo Daniel Sant'Anna, Lopes, Carlos Wilson Gomes, Flausino, Walter, Paiva, Jonimar Pereira, Labarthe, Norma Vollmer, Almosny, N?dia Regina Pereira, and ALmeida, Elan Cardozo Paes de
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diagn?sticos ,doen?as ,toxoplasmose ,Medicina Veterin?ria ,c?o - Abstract
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2019-09-17T18:29:26Z No. of bitstreams: 1 2014 - Paulo Daniel Sant'Anna Leal.pdf: 18661793 bytes, checksum: b79fd3c1a8ceadedb5b8289aa701613a (MD5) Made available in DSpace on 2019-09-17T18:29:26Z (GMT). No. of bitstreams: 1 2014 - Paulo Daniel Sant'Anna Leal.pdf: 18661793 bytes, checksum: b79fd3c1a8ceadedb5b8289aa701613a (MD5) Previous issue date: 2014-01-10 Specialization in veterinary medicine has advanced in recent years, which meets the demand of the human population, which has increasingly interacted with dogs, requiring an efficiency of veterinary clinicians, especially in the study and control of diseases of the elderly dog. In addition, Toxoplasma gondii and its zoonotic disease should be considered one of the most important inferences in domestic animals and humans. Dogs are intermediate hosts, as are humans and other warm-blooded animals. Epidemiological studies in dogs have revealed this widespread etiological agent in the canine population; however, clinical and diagnostic manifestations often overlooked or not recognized by clinicians contribute to the lack of diagnosis, mainly because it is an opportunistic infection and is observed in association with concomitant diseases. Blood samples were obtained from a total of 402 animals treated at the CTIVeterinary, Barra da Tijucana city of Rio de Janeiro, RJ. These samples were used to determine the presence of T. gondii seroreactive animals by IFAT as a cutoff point of 1:16. The presence of T. gondii seroreacts was observed in 42 dogs (10.44%) of the 402 animals examined at the clinic for this study. As a result, age was considered as the most important source of risk for natural T. gondii infection mainly in animals of equal age and over 10 years. Human housing, such as apartments, was significant as a protective factor. It was observed that when several animals inhabit the same space there was no possibility of naturally transmitting the infection between them, with a risk factor of 2.407. The presence of the cat was not important for the transmission of natural infection to dogs under the conditions studied. Diet did not influence the natural infection of T. gondii in the present study, as gender determination was not relevant as a source of infection. There is no difference between the clinical pathology tests indicated to suggest natural T. gondii infection. Of the seroreactive dogs against T. gondii, 25% of them were associated with infectious diseases, 20% of them as associations of infectious, parasitic and degenerative diseases, 20% of animals had infectious and parasitic diseases, while only 15% of animals had only parasitic diseases, another 15% of the animals were associated with other diseases, an association of infectious, parasitic, neoplastic, degenerative and other diseases were observed in 5% of T. gondii positive animals by IFAT. Neoplastic and degenerative diseases were observed in 5% of the animals, respectively. The presence of this etiological agent was not important to trigger a clinical process characteristic of infection with this etiological agent and that its presence was not associated with any clinical disease observed in dogs examined. A especializa??o em Medicina Veterin?ria tem avan?ado nos ?ltimos anos, o que satisfaz a demanda da popula??o humana, que cada vez mais tem interagido com c?es, exigindo uma efici?ncia dos Cl?nicos Veterin?rios, principalmente em estudo e controle de doen?as do c?o idoso. Al?m de que, Toxoplasma gondii e a sua doen?a zoon?tica deve ser considerada uma das infermidades mais importante nos animais dom?sticos e em seres humanos. Os c?es s?o hospedeiros intermedi?rios, assim como seres humanos e outros animais de sangue quente. Estudos epidemiol?gicos em c?es revelaram este agente etiol?gico difundido na popula??o de canina, no entanto, as manifesta??es cl?nicas e de diagn?stico frequentemente negligenciadas ou n?o reconhecidas pelos cl?nicoscontribuem para a aus?ncia de diagn?stico, principalmente porque ? uma infec??o oportunista e se observa em associa??o com doen?as concomitantes.Amostras de sangue foram obtidas de um total de 402 animais atendidos no CTIVeterin?rio, Barra da Tijucana cidade do Rio de Janeiro, RJ. Estas amostras foram utilizadas para determinar a presen?a de animais sororreagentes para T. gondii pela RIFI como ponto de corte de1:16. A presen?a de sororreagentes para T. gondii foi observada em 42 c?es (10,44%) dos 402 animais examinados na cl?nica para este estudo. Como resultado, a idade foi considerada como a mais importante como fonte de risco para a infec??o natural por T. gondiiprincipalmente em animais de idadeigual e acima de 10 anos. Habita??o humana, como apartamentos, foi significativo como fator de prote??o.Observou-se que, quando v?rios animais habitam o mesmo espa?o n?o houve possibilidade de transmitir de maneira natural a infec??o entre eles, com um factor de risco de 2,407. A presen?a do gato n?o foi importante para a transmiss?o da infec??o natural para c?es nas condi??es estudadas. A alimenta??o n?o influenciou ? infec??o natural de T. gondii no presente estudo, assim como a determina??o do sexo n?o foi relevante como uma fonte de infec??o. N?o h? diferen?a entre os exames de patologia cl?nica indicados para sugerir a infec??o natural por T. gondii. Dos c?es sororreagentes contra T. gondii, 25% destes estavam associados a doen?as infecciosas, 20% deles como associa??es de doen?as infecciosas, parasit?rias e degenerativas, 20% dos animais tinham doen?as infecciosas e parasit?rias, enquanto que em apenas 15% dos animais tinham apenas doen?as parasit?rias, outros 15% dos animais tinham associa??o com outras doen?as, uma associa??o de doen?as infecciosas, parasit?rias, neopl?sicas, degenerativas e outros foram observados em 5% dos animais positivos para T. gondii pela RIFI. Doen?as neopl?sicas e degenerativas foram observadas em 5% dos animais, respectivamente. A presen?a do referido agente etiol?gico n?o foi importante para desencadear um processo cl?nico caracter?stico da infec??o por este agente etiol?gico e que a presen?a do mesmo n?o esteve associado a nenhuma doen?a cl?nica observada em c?es examinados.
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- 2014
75. Influence of leptospirosis on production and reproduction in dairy herd Campus Nilo Pe?anha IFRJ Pinheiral, State of Rio de Janeiro
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Rosa, Adriane Garcia da, Jesus, Vera Lucia Teixeira de, Ferreira, Jana?na Barcelos Porto, and Flausino , Walter
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fatores risco ,Leptospira interrogans ,risk factors ,sorovar hardjo ,infertilidade ,Medicina Veterin?ria ,infertily - Abstract
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2020-04-16T15:20:20Z No. of bitstreams: 1 2013 - Adriane Garcia da Rosa.pdf: 854967 bytes, checksum: 2ee0f74f1d3da4c6f1faf237bc077f66 (MD5) Made available in DSpace on 2020-04-16T15:20:20Z (GMT). No. of bitstreams: 1 2013 - Adriane Garcia da Rosa.pdf: 854967 bytes, checksum: 2ee0f74f1d3da4c6f1faf237bc077f66 (MD5) Previous issue date: 2013-02-28 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. The aim of this study was to assoc iate the dairy herd reproductive failure in the presence of animals reagents leptospirosis. To this end we characterized the relevant variables to the animal and the management, production and reproductive performance data relating to the serological resul ts for leptospirosis. A total of 40 cows in lactation Girolanda, created in a semi extensive system of lowland, over paddocks, whose diet consists of forage, supplementation with concentrate ad libitum and mineralization in pasture, dairy cattle from the C ampus of the Technical College Pinheiral were collected three samples of blood serum of the whole flock and sent to the Biological Institute of S?o Paulo, to the technique of serum Microscopic agglutination with an interval of four months between collectio ns during the period from 2011 to 2012. Aiming to monitor the production and reproduction, these females were evaluated by gynecological and reproductive history, obtained through analysis of individual records, in parallel with individual milk production were computed data in Excel spreadsheets, and comparing the data with the results of serological leptospiorose.Observou to that in the first collection (June/2011) was 52.17%, the second collection in March 2012 (50.0%) and the third collection in June 201 2 (42.85%). The higher prevalence of serovar was Hardjo (20.66%), followed by Wolffi (19.00%) did not differ qunado analyzed by chi square at 5%. When all variables were associated, it was concluded that even with positive serology for serovar hardjo compa red to the production and reproduction of the herd, the group did not differ regante and negative, since this herd body condition score between 3.5 mantevesse to 4.0, which ensures good efficiency reprodtuiva herd. O objetivo deste estudo foi associar ?s falhas reprodutivas e produ??o leiteira do rebanho com a presen?a de animais reagentes a leptospirose. Para tal foram caracterizadas as vari?veis pertinentes ao animal e ao manejo, relacionando dados produtivos e reprodutivos com os resultados sorol?gicos para leptospirose. Foram utilizadas 49 vacas girolanda em lacta??o, criadas em um sistema semi extensivo de v?rzea ?mida, distribu?dos em piquetes, cuja alimenta??o composta por v olumoso, com complementa??o de concentrado e a mineraliza??o ad libitum , provenientes do rebanho leiteiro do Campus de Pinheiral. Foram coletadas tr?s amostras de soro sang??neo de todo o rebanho e encaminhadas ao Instituto Biol?gico de S?o Paulo, para a realiza??o da t?cnica de S oro aglutina??o Microsc?pica, com intervalo de quatro meses, entre coletas, durante o per?odo de junho de 2011 a dezembro de 2012. Visando o acompanhamento da produ??o e reprodu?? o, estas f?meas foram avaliadas pelo exame ginecol?gico e hist?rico reprodutivo, obtidos atrav?s da an?lise das fichas individuais, em paralelo ? produ??o individual de leite foram computados os dados em planilhas de Excell, e confrontando os dados com os resultados sorol?gicos para leptospirose. Observou se que na primeira coleta (06/2011) foi de 52,17%, na segunda coleta em 03/12 (50,0%) e na terceira coleta em 06/12 (42,85%). O sorovar de maior prevalencia foi Hardjo (20,66%), seguido de Wolffi (19,00%), e estes n?o diferiram pelo teste do qui quadrado. Quando todas as vari?veis foram associadas, concluiu se que mesmo com sorologia positiva para o sorovar hardjo, quando comparad o com a produ??o e reprodu??o do rebanho, n?o diferiu o grupo reagente e negativo, visto que o escore corporal deste rebanho mantevesse entre 3,5 a 4,0, o que garante uma boa efic i?ncia reprodutiva do rebanho.
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- 2013
76. Diagnosis of Cystoisospora felis (Wenyon, 1923) Frenkel, 1977 (Apicomplexa: Cystoisosporinae) infection by Western Blotting in farm animals: bovines
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Meireles, Gisele Santos de, Lopes, Carlos Wilson Gomes, Flausino, Walter, Jesus, Vera L?cia Teixeira de, Miranda, Zander Barreto, Cardozo, Sergian Vianna, and Almeida, Elan Cardozo Paes de
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Western Blotting ,oocistos esporulados ,SDS-PAGE ,Cystoisospora felis ,bandas imunodominantes ,immunodominant bands ,purification techniques ,Medicina Veterin?ria ,SDSPAGE ,sporulated oocysts - Abstract
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-10-24T18:46:15Z No. of bitstreams: 1 2013 - Gisele Santos de Meireles.pdf: 16741114 bytes, checksum: 1d4b03cbd2287a0984257f70efb149da (MD5) Made available in DSpace on 2018-10-24T18:46:15Z (GMT). No. of bitstreams: 1 2013 - Gisele Santos de Meireles.pdf: 16741114 bytes, checksum: 1d4b03cbd2287a0984257f70efb149da (MD5) Previous issue date: 2013-02-27 CAPES FAPERJ This study aimed to determine from the protein profile of oocysts of Cystoisospora felis recovered from the sequential use of various purification techniques adapted for specific use in sporulated oocysts of C. felis. With the aid of SDS-PAGE 12% resulted in identification of 25 groups of protein: 266, 240, 186, 165, 140, 119, 112, 105, 98, 90, 78, 55, 47, 42, 37, 35, 30, 27-28, 25, 22, 19, 18, 16, 14 kDa belonging to the structure of sporulated oocysts and sporozoites of C. felis. Based on this results and heterologous bovine serum anti-C. felis was possible to determine polypeptides dominant relevant to diagnostic immunoassay technique with "Western Blotting", these being immunodominant bands: P208, P138, P113, p106, p62, p56, p51, p48, p44, p38, p36, and p33 p27. In order to avoid misdiagnosis from cross-reactivity a positive control serum anti-C. felis was compared to with positive serum anti-Toxoplasma and Neospora in order to exclude the common protein bands, probably markers of gender and group to identify cattle infected naturally or experimentally with C. felis. As showed, the following specific antigenic protein units: p 206-208, P137-139, p112- 113, p104-107, p27-28 are responsible for determining the animal tested positive or not for Cystoisospora felis. Of the analysis of the variables could be observed that the presence of felines related to the handling, size and type of milking properties facilitates dispersion C. felis. Este trabalho teve por objetivo, diagnosticar a infec??o por Cystoisospora felis em bovinos atrav?s do Western Blotting, apartir de oocistos obtidos com o uso sequencial de v?rias t?cnicas de purifica??o adaptadas para o uso em oocistos esporulados de C. felis. Com o aux?lio do SDS-PAGE a 12 % resultou na identifica??o de 25 grupos proteicos de: 266; 240; 186; 165; 140; 119, 112, 105, 98, 90, 78, 55, 47, 42, 37, 35, 30, 27-28, 25, 22, 19, 18, 16, 14 KDa, pertencentes a estrutura dos oocistos esporulados e esporozoitas de C. felis. Com base nesse resultado e em soro de bovino heter?logo anti-C. felis foi poss?vel determinar os polipept?deos dominantes relevantes ? t?cnica de diagn?stico imunoenzimatico com ?Western Blotting?, sendo estas, as bandas imunodominantes: p208, p138, p113, p106, p62, p56, p51, p48, p44, p38, p36, p33 e p27. A fim de evitar o diagn?stico equivocado a partir de rea??es cruzadas foi feita a compara??o do soro controle positivo anti-C. felis com o soro positivo anti-Toxoplasma e Neospora com o intuito de excluir as bandas proteicas comuns, prov?veis marcadoras de g?nero e grupo para identifica??o de bovinos infectados de maneira natural ou experimental com C. felis. Sendo evidenciadas, as seguintes unidades proteicas antig?nicas espec?ficas: p 206-208, p137-139, p112-113, p104-107, p27-28 respons?veis por determinar a positividade dos animais testados para C. felis. A partir das an?lises das vari?veis foi poss?vel observar que a presen?a de felinos associados, ao manejo, tipo de ordenha e tamanho das propriedades facilita a dispers?o de C. felis.
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- 2013
77. Abundance and risk factors of Dermatobia hominis (Linnaeus JR., 1781) (Diptera: Cuterebridae) in cattle in Organic Farming in Fazendinha Agroecologica 47 km, RJ
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Flori?o, M?nica Mateus, Moya Borja, Gonzalo Efrain, Pinto, Luiz Figueira, Kimura, Leda Maria Silva, Tassinari, Wagner, Coumendouros, Katherina, and Flausino, Walter
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manejo org?nico ,nodular subcutaneous myiasis ,cattle ,Mi?ase nodular subcut?nea ,Medicina Veterin?ria ,bovino ,organic management - Abstract
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2020-07-28T17:40:23Z No. of bitstreams: 1 2011 - M?nica Mateus Flori?o.pdf: 1687320 bytes, checksum: 86f80442756b5ce8edd38e9ca932a536 (MD5) Made available in DSpace on 2020-07-28T17:40:23Z (GMT). No. of bitstreams: 1 2011 - M?nica Mateus Flori?o.pdf: 1687320 bytes, checksum: 86f80442756b5ce8edd38e9ca932a536 (MD5) Previous issue date: 2011-02-24 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. Studies on larvae of Dermatobia hominis have been described, but no data were found on this infestation in dairy cattle raised under organic conditions. This study aimed to provide information on this parasitic skin disease in an organic nursery, verifying the location and distribution of larvae on the body surface of cattle, to determine the frequency of infestation in relation to sex, age and coat color, beyond the influence of climatic factors. The herd consisted of 40 crossbred dairy Zebu x European, divided into lots of young and adult animals. Inspection was carried out fortnightly (915 inspections) with mapping for the presence of larvae on the body surface, from September 2009 to August 2010 in the "FAZENDINHA AGROECOL?GICA KM 47?. The results indicated incidence of parasitism in females (average 21.98 against 8.37 in males), in males a higher number of nodules on the right side (4.46 against 3.90 on the left side), where the right posterior superior region (RPDS ) was the most infested. In females highest number of nodules on the left and right anterior superior (RADS). The infestation in adults (average 31.55) was higher than in young animals in lactation were less infested (average 8.01) in both groups of young animals infested the side was left in the group where breast-feeding region most affected was the anterior right superior (RADS), and the weaned group was the left anterior superior (RAES) in the adult group was the most infested area to the anterior right superior (RADS), the coat was more infested painted white to black (average 36.69 per animal), the coats were the least infested red hues typical (average 14.13 per animal) and light brown and dark (12:33). The highest rates occurred in November and December while the lowest in June and July. With respect to rainfall and relative humidity, each increment of 1mm ? of water caused a mean increase of 1.03 in the relative risk of occurrence of dermatobiosis and every one degree increase in average temperature, there was an average increase of 1 , 14 in the relative risk for infestation. The results were significant for all climatic variables studied. It can be argued that this ideal breeding animals are brown fur and red hues typical. One can not say that there is influence of lateral decubitus on the right-external body infected. The climatic factor that most influenced the dermatbiosis was temperature. The organic management system used was able to keep the animals safe level of infection where the parasite load was not able to cause clinical disease in catlle Estudos sobre larvas de Dermatobia hominis j? foram descritos, por?m n?o foram encontrados dados sobre esta infesta??o em bovinos leiteiros criados sob sistema org?nico. O presente trabalho teve como objetivo fornecer subs?dios sobre esta ectoparasitose dentro de um criat?rio org?nico, verificando-se a localiza??o e distribui??o das larvas na superf?cie corporal dos bovinos, determinando-se a freq??ncia das infesta??es com rela??o ao sexo, idade e cor da pelagem, al?m da influ?ncia dos fatores clim?ticos. O rebanho foi constitu?do por 40 animais mesti?os leiteiros Zebu x Europeu, dividido em lotes de animais jovens e adultos. Foi realizada inspe??o quinzenal (915 inspe??es) com mapeamento quanto a presen?a de larvas na superf?cie corporal, no per?odo de setembro de 2009 a agosto de 2010 na ?FAZENDINHA AGROECOL?GICA KM 47?. Os resultados indicaram predomin?ncia do parasitismo nas f?meas (m?dia 21,98 contra 8,37 em machos), nos machos maior n?mero de n?dulos no lado direito (4,46 contra 3,90 lado esquerdo), onde a regi?o posterior direita superior (RPDS) foi a mais infestada. Nas f?meas maior n?mero de n?dulos no lado esquerdo e na regi?o anterior direita superior (RADS). A infesta??o nos adultos (m?dia 31,55) foi maior que nos jovens, os animais em aleitamento foram menos infestados (m?dia de 8,01), nos dois grupos de animais jovens o lado mais infestado foi o esquerdo, no grupo em aleitamento a regi?o mais acometida foi a regi?o anterior direita superior (RADS), e no grupo desmamado foi a regi?o anterior esquerda superior (RAES), no grupo dos adultos a regi?o mais infestada foi a regi?o anterior direita superior (RADS), a pelagem mais infestada foi a preta pintada de branco (m?dia 36,69 por animal), as pelagens menos infestadas foram a vermelha em tonalidades t?picas (m?dia 14,13 por animal) e a castanho claro e escuro (12,33). Os maiores ?ndices ocorreram em novembro e dezembro enquanto os mais baixos em junho e julho. Com rela??o ? precipita??o pluviom?trica e ? umidade relativa do ar, cada aumento de 1mm? de ?gua ocasionou um acr?scimo m?dio de 1,03 no risco relativo da ocorr?ncia de dermatobiose, e a cada aumento de 1 grau na temperatura m?dia, ocorreu um aumento m?dio de 1,14 no risco relativo para a infesta??o. Os resultados foram significativos para todas as vari?veis clim?ticas estudadas. Pode-se afirmar que os animais ideais neste criat?rio s?o os de pelagem castanha e vermelha em tonalidades t?picas. N?o se pode afirmar que existe influencia do dec?bito l?tero-external direito no lado corporal parasitado. O fator clim?tico que mais influenciou a dermatobiose foi a temperatura O sistema de manejo org?nico empregado foi capaz de manter os animais em n?vel de infec??o segura, onde a carga parasit?ria n?o foi capaz de causar doen?a cl?nica nos bovinos.
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- 2011
78. Diagnosis of the species of genus Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) in cage birds
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Balthazar, Lianna Maria de Carvalho, Lopes, Carlos Wilson Gomes, Flausino, Walter, Oliveira, Francisco Carlos Rodrigues de, and Ferreira, Ildemar
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Isospora ,coccidiose ,Oocysts ,Oocistos ,coccidiosis ,Medicina Veterin?ria - Abstract
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2020-10-20T22:39:34Z No. of bitstreams: 1 2011 - Lianna Maria de Carvalho Balthazar.pdf: 7490971 bytes, checksum: c85cf92a1e158d4a77ed4dcf409c92c5 (MD5) Made available in DSpace on 2020-10-20T22:39:34Z (GMT). No. of bitstreams: 1 2011 - Lianna Maria de Carvalho Balthazar.pdf: 7490971 bytes, checksum: c85cf92a1e158d4a77ed4dcf409c92c5 (MD5) Previous issue date: 2011-02-23 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. Coccidiosis as being limiting in nature, often asymptomatic, is observed in most of these cage birds, causing health problems and economic losses for both small and for large breeders.The principal objective of this research was to describe coccidiosis in cage birds located in the City of Teres?polis, from the mountainous region of the State of the Rio de Janeiro. The cage birds are kept as pets for their beauty as for their singing and mostly belong to the order Passeriformes In this study, oocysts recovered from feces of cage birds were species of the genus Isospora Schneider, 1881 identified by the phenotypic and morphometric characteristics. It could be observed that coccidiosis in cage birds in this study did not represent a limiting factor in this system of breeding in spite of the presence of coccidian oocysts in the feces of studied birds. A coccidiose por ser de car?ter limitante, muitas vezes assintom?tica, ? observada na maioria das aves de gaiola, causando problemas de sa?de e preju?zos econ?micos tanto para pequenos quanto para grandes criadores. Este trabalho teve como objetivo principal verificar a infec??o de cocc?dios em p?ssaros de gaiola do munic?pio de Teres?polis, localizado na Regi?o Serrana . As aves de gaiola s?o mantidas como mascotes tanto pela sua beleza como pelo seu canto, e em sua maioria pertencem ? ordem Passeriformes. Neste trabalho, os oocistos observados nas fezes desses p?ssaros de gaiola, foram identificados atrav?s das caracter?sticas fenot?picas e an?lise morfom?trica como esp?cies do g?nero Isospora Schneider, 1881. Observou-se que a coccidiose em p?ssaros de gaiola no presente estudo n?o foi fator limitante no sistema de cria??o, apesar da presen?a de oocistos de cocc?dios nas fezes das aves estudadas.
- Published
- 2011
79. Epidemiological, clinical and laboratory aspects of the visceral leishmaniasis in dogs (Canis familiaris) (Linnaeus, 1758) proceeding from the urban zone of the city of Bom Jesus, Piauí state, and metropolitan area of Recife, Pernambuco state, Brazil
- Author
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SANTOS, Jamile Prado dos, FAUSTINO, Maria Aparecida da Gloria, ALVES, Leucio Câmara, FLAUSINO, Walter, BARBOSA, Marco Antônio Granja, and LIRA, Nair Silva Cavalcante de
- Subjects
Cão ,Leishmaniose ,MEDICINA VETERINARIA [CIENCIAS AGRARIAS] ,Epidemiologia - Abstract
Submitted by (edna.saturno@ufrpe.br) on 2016-10-11T11:48:36Z No. of bitstreams: 1 Jamile Prado dos Santos.pdf: 3388776 bytes, checksum: 21c7a12a0e2577c73388b1a7ed8382da (MD5) Made available in DSpace on 2016-10-11T11:48:36Z (GMT). No. of bitstreams: 1 Jamile Prado dos Santos.pdf: 3388776 bytes, checksum: 21c7a12a0e2577c73388b1a7ed8382da (MD5) Previous issue date: 2011-02-11 Canine Visceral Leishmaniasis (CVL) in Brazil is caused by Leishmania infantum, which is reported in several regions. The objective of this research was to investigate the epidemiological, clinical and laboratory features of visceral leishmaniasis in dogs (Canis familiaris) (Linnaeus, 1758) from the urban area of Bom Jesus, Piaui State and Jaboatão dos Guararapes, Pernambuco State, Brazil. Dogs from Bom Jesus, Piauí, and Muribeca neighborhood, Jaboatão dos Guararapes, Pernambuco, Brazil, were submitted to blood collection and investigated for Canine Visceral Leishmaniasis clinical signs. Serum samples were analyzed by ELISA for anti-Leishmania infantum to determine the frequency of positive animals in the two localities mentioned above. According to serology, positive dogs were assigned coordinates by using a portable GPS in Muribeca neighborhood. The points were recorded in the district and analyzed in ArcGIS using the "Spatial Correlation of Moran's," to distinguish grouping based on the variables of vegetation and hydrology. Samples of the urinary bladder of adult dogs naturally infected by L. infantum in the metropolitan area of Recife were performed by immunohistochemical and histopataologic analysis. On the serological survey of Bom Jesus, PI, 42.23% were positive by ELISA from 206 serum samples examined. There was no significant difference between symptomatic and asymptomatic dogs. In Muribeca, Jaboatão dos Guararapes, 159 dog blood samples were used, which 50.3% were positive by ELISA. No significant difference in relation to race and gender was found, but a significantly higher frequency was observed in asymptomatic animals. The skin diseases predominated among the positive animals. Moreover, the correlations between all points and environmental factors, vegetation type and hydrology, which were pooled showed no relationship. Samples of urinary bladder and kidneys from 25 Leishmania infantum natural infected dogs provenient of metropolitan region of Recife were analysed by immunohistochemical and histopathology. In assessing the immunohistochemical staining 32% of samples of bladder and 8% of samples of kidneys demonstrated immunostaining of amastigotes of L. infantum. Cystitis was present in 36% of samples analyzed bladder. Membranoproliferative glomerulonephritis and interstitial nephritis were the more found renal histopathological changes. We conclude that the frequency of seropositive animals at both locations of study is high. Immunohistochemistry was superior in comparison with histopathology for the detection of amastigotes in different samples of kidneys and urinary bladder of Leishmania infantum naturally infected dogs. This is the first report in urinary bladder. A Leishmaniose Visceral Canina (LVC) no Brasil é causada por Leishmania infantum a qual é relatada em várias regiões. O objetivo desta pesquisafoi verificar aspectos epidemiológicos, clínicos e laboratoriais da leishmaniose visceral em cães (Canis familiaris) (Linnaeus, 1758) provenientes da zona urbana do município de Bom Jesus – PI e Região Metropolitana de Recife - PE, Brasil. Cães do município de Bom Jesus, Piauí, e do bairro de Muribeca, município de Jaboatão dos Guararapes, Pernambuco, Brasil, foram submetidos à coleta de sangue e investigados quanto aos sinais clínicos relacionados à Leishmaniose Visceral Canina. Os soros foram analisados pelo teste ELISA para anticorpos anti-Leishmania infantum, para determinar a frequência de animais sororreagentes nas duas localidades acimas citadas. No bairro de Muribeca de acordo com a sorologia, para os cães positivos foram atribuídas coordenadas através da utilização de um GPS portátil. Os pontos foram registrados no município e analisados no ArcGIS, utilizando-se a “Correlação Espacial de Moran’s", para distinguir agrupamento com base nas variáveis da vegetação e hidrologia. Foi realizada a avaliação imuno-histoquímica e histopatológica de fragmentos de bexiga urinária de cães adultos naturalmente infectados por L. infantum da região metropolitana de Recife. No inquérito sorológico de Bom Jesus – PI, de 206 amostras de soro examinadas, 42,23% foram positivas ao ELISA. Não houve diferença significativa entre cães sintomáticos e assintomáticos. Em Muribeca, no município de Jaboatão dos Guararapes, de 159 cães, 50,3% foram positivos ao ELISA, não havendo diferença significativa em relação à raça e sexo, porém com frequência significativamente mais elevada nos animais assintomáticos. Predominaram dentre os animais positivos as dermatopatias. Por outro lado, as correlações entre todos os pontos e fatores ambientais, tipo de vegetação e hidrologia, que foram agrupados não apresentaram relação. Na avaliação imuno-histoquímica e histopatológica de amostras de bexiga urinária e de rins de 25 cães da região metropolitana de Recife, positivos para L.infantum, 32% das amostras de bexiga e 8% das amostras de rins demonstraram a imunomarcação de formas amastigotas de L. infantum. A cistite esteve presente em 36% das amostras e as alterações histopatológicas renais mais encontradas foram glomerulonefrite membranoproliferativa e nefrite intersticial. Conclui-se que a frequência de animais sorologicamente positivos em ambas as localidades de estudo é alta e que o método de imuno-histoquímica é superior ao exame histopatológico para a detecção de formas amastigotas em diferentes amostras de rins e bexiga urinária de cães com infecção natural por L. infantum, sendo este o primeiro relato em bexiga urinária.
- Published
- 2011
80. Morphology and systematic of coccidian parasites (Apicomplexa: Eimeriidae) of Passeriformes birds from the Marambaia Island, Rio de Janeiro, Brazil
- Author
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Berto, Bruno Pereira, Lopes, Carlos Wilson Gomes, and Flausino, Walter
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oocistos ,sistem?tica ,Parasitologia ,eimeria ,systematic ,oocysts ,isospora ,passeriformes - Abstract
Made available in DSpace on 2016-04-28T20:16:19Z (GMT). No. of bitstreams: 1 2010 - Bruno Pereira Berto.pdf: 2100000 bytes, checksum: 7c975b30da67285bf2c8d87c9e105bc9 (MD5) Previous issue date: 2010-03-02 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES Coccidiosis associated with the genera Eimeria Schneider, 1875 and Isospora Schneider, 1881 in the order Passeriformes are reported for more than two centuries. This study aimed to contribute to the morphology and systematic of coccidian parasites of the order Passeriformes, providing scientific basis for identification of parasite species of birds from North, South and Central America. The coccidia were organized and grouped according to the family of the host, following the concept widely recognized of family-specificity and the systematic of the class Aves updated. Isospora tiesangui, I. marambaiensis, I. sepetibensis, I. cadimi, I. navarroi, I. ramphoceli, I. mionectesi, I. feroxis, I. cagasebi, I. coerebae, I. piacobrai e Eimeria sicki were identified and characterized according to their respective hosts of the order Passeriformes, which inhabit the Atlantic forest of the Marambaia Island, Rio de Janeiro, Brazil. The main feature of differentiation and identification of these species was the Stieda and substieda bodies, since the morphometric parameters did not provide sufficient differentiation. The specificity of coccidia occurred at the family level, because Ramphocelus bresilius dorsalis and the new hosts Dacnis cayana and Thraupis palmarum, family Thraupidae, were described for the species I. tiesangui, I sepetibensis and I. navarroi, and, similarly, Myiarchus ferox and Leptopogon amaurocephalus, family Tyrannidae, were described for E. sicki. Finally, dichotomous keys for identification were effective for the families Thraupidae and Tyrannidae. Coccidioses associadas aos g?neros Eimeria e Isospora na ordem Passeriformes s?o relatadas h? mais de dois s?culos. Este trabalho objetivou contribuir para a morfologia e sistem?tica de cocc?dios parasitos da ordem Passeriformes, fornecendo embasamento cient?fico para identifica??o de esp?cies parasitas de aves das Am?ricas do Norte, do Sul e Central. Os cocc?dios foram organizados e agrupados de acordo com a fam?lia do hospedeiro, seguindo o conceito fam?lia-espec?fico, amplamente reconhecido e a sistem?tica da classe Aves atualizada. Isospora tiesangui, I. marambaiensis, I. sepetibensis, I. cadimi, I. navarroi, I. ramphoceli, I. mionectesi, I. feroxis, I. cagasebi, I. coerebae, I. piacobrai e Eimeria sicki foram identificadas e caracterizadas de acordo com seus respectivos hospedeiros da ordem Passeriformes, os quais habitam o bi?topo de sub-bosque da Mata Atl?ntica, Ilha da Marambaia, Rio de Janeiro, Brasil. A principal caracter?stica de diferencia??o e identifica??o destas esp?cies foi o complexo corpo de Stieda e substieda, uma vez que o estudo morfom?trico n?o forneceu par?metros suficientes de diferencia??o. A especificidade ocorreu em n?vel de fam?lia, pelo fato de Ramphocelus bresilius dorsalis e os novos hospedeiros Dacnis cayana e Thraupis palmarum, da fam?lia Thraupidae, terem sido descritos para as esp?cies I. tiesangui, I. sepetibensis e I. navarroi, e, da mesma forma, Myiarchus ferox e Leptopogon amaurocephalus, da fam?lia Tyrannidae, foram descritos para E. sicki. Por fim, chaves dicot?micas de identifica??o de esp?cies de cocc?dios parasitas de aves Passeriformes foram efetivadas para as fam?lias Thraupidae e Tyrannidae.
- Published
- 2010
81. The use of Western Blotting technique to determine Cystoisospora felis (Wenyon, 1923) Frenkel, 1977 (Apicomplexa: Cystoisosporinae) infection in rabbits (Oryctolagus cuniculus)
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Meireles, Gisele Santos de, Lopes, Carlos Wilson Gomes, and Flausino, Walter
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Western Blotting ,t?cnicas de purifica??o ,Cystoisospora felis ,purification techniques ,Medicina Veterin?ria ,SDS-PAGE - Abstract
Made available in DSpace on 2016-04-28T20:15:32Z (GMT). No. of bitstreams: 1 2009 - Gisele Santos de Meireles.pdf: 1867896 bytes, checksum: 50898c1a65b34d41d9d4352322ce8d1e (MD5) Previous issue date: 2009-02-27 Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq This work aimed, to determine the phenotypic analysis from sporulated oocysts of Cystoisospora felis by using a sequential method of cleaning techniques. By using SDS-PAGE at 10 and 12 % were separated 22 protein groups as: 26.65; 29.71; 31.79; 36.41; 44.03; 50.09; 56.08; 62.64; 73.65; 77.55; 85.34; 97.62; 98.66; 101.24; 104.21; 109.23; 110.56; 113.21; 138.48; 180.50; 206.81 and 244.51KDa belonged to estrutucture from C. felis sporulated oocysts. Western Blotting technique was performed after SDS-PAGE and were identified these antigenic proteins: p39.39; p42.18; p44.40; p47.82; p55.46; p58.75; p66.08; p77.41; p92.85; p99.58; p104.10; p112.84; p203.15 and p37.25; p38.80; p67; p69; p77; p93; p99; p103; p111.19; p202.66 KDa from hyperimmune and natural infected rabbits by C. Felis respectively. Este trabalho teve por objetivo, tra?ar um perfil prot?ico de oocistos esporulados de Cystoisospora felis, recuperados a partir do uso seq?encial de v?rias t?cnicas de purifica??o adaptadas para o uso em oocistos esporulados de C. felis. Com o aux?lio do SDS-PAGE a 10 e 12 % resultou na identifica??o de 22 grupos prot?icos de 26; 29; 31; 36; 44; 50; 56; 62; 73; 77,55; 85,34; 97,62; 98,66; 101,24; 104,21; 109,23; 110,56; 113,21; 138,48; 180,50; 206,81 e 244,51 KDa, pertencentes a estrutura dos oocistos esporulados e esporozoitas de C. felis. Com base nesse resultado e em soro de coelho heter?logo anti-C. felis foi poss?vel desenvolver uma t?cnica de diagn?stico imunoenzimatico com western Blotting para identifica??o de animais infectados de maneira natural ou experimental com C. felis, identificando os seguintes prote?nas antig?nicas: p39.39; p42.18; p44.40; p47.82; p55.46; p58.75; p66.08; p77.41; p92.85; p99.58; p104.10; p112.84; p203.15 e p37.25; p38.80; p67; p69; p77; p93; p99; p103; p111.19; p202.66 KDa, respectivamente.
- Published
- 2009
82. Standardization of a Macroscopic Seroagglutination test for the diagnostic of leptospirosis in pigs
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Lima, Gerson Silva de and Flausino, Walter
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Macroaglutina??o ,pig ,su?nos ,diagn?stico ,diagnosis ,Microbiologia ,Leptospirosis ,Leptospirose ,Macroagglutination - Abstract
Made available in DSpace on 2016-04-28T20:17:28Z (GMT). No. of bitstreams: 1 2008 - Gerson Silva de Lima.pdf: 864257 bytes, checksum: ca49b40df55461f84d34f8a4d94fd512 (MD5) Previous issue date: 2008-10-03 Leptospirosis is considered a global health problem in human and veterinary medicine. It is a zoonotic disease caused by bacteria of the genus Leptospira, prevalent on every continent. The development of an effective macroscopic serum agglutination test against leptospirosis is justified, since the available ones are expensive, cumbersome and restricted to specialized laboratories. In Brazil, leptospirosis in pigs has been a major cause of reproductive failure in several states, mainly in the south and southeast regions of the country. Among the animals used in production of rural ecosystems, pigs have the most frequent clinical manifestations in the reproductive sphere with abortions, usually in the final third of pregnancy. Infertility, sterility or birth of debilitated or dead pigs which dies in the first days of life are signs of the presence of the bacteria in the breeding matrix. In the present study, six suspensions formulations of antigenic serovars pomona, icterohaemorrhagiae and copenhageni were used in single suspension form or in two serovars combinations. These were tested against pig serum with no clinical suspicion of leptospirosis compared with the microscopic agglutination test that is accepted as the gold standard by the World Health Organization (WHO). Among the six proposed suspensions the combination of serovars pomona + icterohaemorrhagiae showed the best result. The results demonstrates a percentage of 89% sensitivity and specificity of 89% for the suspension with the serovars combination of pomona + icterohaemorrhagiae and 87% for positive predictive value and 90% negative predictive value for the same combination, demonstrated by the statistics methods such as Chi-square, Kappa and Linear Logistic Model. Given the importance of leptospirosis in pigs and economic impact that it causes worldwide, in addition to the lack of current information, this study aimed to develop a screening rapid test for the diagnosis of pigs kept in variable dimension farms from rural regions of the Rio de Janeiro state. A leptospirose ? considerada um problema global de sa?de na ?rea humana e veterin?ria. ? uma zoonose causada por bact?rias do g?nero Leptospira, prevalente em todos os continentes. O desenvolvimento de um teste de soro aglutina??o macrosc?pica eficaz contra a leptospirose se justifica, j? que os existentes s?o caros, trabalhosos e restritos a laborat?rios especializados. No Brasil, a leptospirose em su?nos tem sido uma das principais causas de falhas reprodutivas em v?rios estados, principalmente nas regi?es sul e sudeste do pa?s. Dentre os animais de produ??o explorados em ecossistemas rurais os su?nos apresentam as manifesta??es cl?nicas mais freq?entes na esfera reprodutiva com abortamentos, usualmente no ter?o final da gesta??o. A infertilidade, a esterilidade o nascimento de leit?es debilitados que morrem nos primeiros dias de vida s?o sinais da presen?a da bact?ria nas matrizes reprodutoras. No presente estudo, utilizou-se seis formula??es de suspens?es antig?nicas dos sorovares pomona, icterohaemorrhagiae e copenhageni em forma de suspens?o ?nica ou em combina??es de dois sorovares. Foram testadas frente a soros de su?nos sem suspeita cl?nica de leptospirose comparando com a soroaglutina??o microsc?pica que ? o teste aceito como padr?o ouro pela Organiza??o Mundial de Sa?de (OMS). Dentre as seis suspens?es propostas a combina??o dos sorovares pomona + icterohaemorrhagiae apresentou o melhor resultado. Os resultados obtidos demonstraram um percentual de 89% de sensibilidade e 89% de especificidade para a suspens?o com a combina??o dos sorovares pomona + icterohaemorrhagiae e de 87% de valor preditivo positivo e 90% de valor preditivo negativo para a mesma combina??o, comprovado pelos m?todos estat?sticos Qui-quadrado, Kappa e Modelo Linear Log?stico. Dada ? import?ncia da leptospirose em su?nos e o impacto econ?mico que causa mundialmente, al?m da car?ncia de informa??es atuais, este trabalho teve por objetivo desenvolver um teste r?pido de triagem para diagn?stico em su?nos mantidos em cria??es rurais de diferentes regi?es e tamanhos no Estado do Rio de Janeiro.
- Published
- 2008
83. Anatomy-clinics and Biology in broilers chicks experimentally infected with Eimeria acervulina and supplemented with betaine
- Author
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Teixeira, Marcel, Lopes, Carlos Wilson Gomes, and Flausino, Walter
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Phi ,frangos de corte ,experimental infection ,beta?na ,betaine ,Eimeria acervulina ,infec??o experimental ,Medicina Veterin?ria ,broiler chickens - Abstract
Made available in DSpace on 2016-04-28T20:16:20Z (GMT). No. of bitstreams: 1 2007 - Marcel Teixeira.pdf: 1273236 bytes, checksum: aab3a6b9a04277f697a5e04ba6149d75 (MD5) Previous issue date: 2007-02-28 Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico Purposing to evaluate the anatomy-clinics and biology in broilers chicks experimentally infected with Eimeria acervulina and supplemented with betaine, a study was carried out. Thus, 390 broiler chicks Cobb were housed in battery cages distributed in a randomized block design composed of five treatments, six replicates with 13 chicks each, including a positive control, a group treated with the salinomycin plus potassium penicillin G and three levels of betaine in the feed 0.05%, 0.10% and 0.15%. A soybean-maize based diet was prepared according the nutritional requirements of broiler chickens; food and water were given ad libitum. Chicks 14 days old were individually infected orally with 2 x 105 sporulated oocysts of E. acervulina. Weight gain, feed consumption, oocyst output and clinical signs were performed during 1-7 and 7-14 days after inoculation (DAI). After, from 0-7 and 7-14 DAI weight gain, feed consumption, oocyst output, plasma proteins and clinical signs were evaluated. At 0, 4, 7 and 14 DAI one bird from each replicate were euthanatized to perform lesion score and collection of blood and intestinal tissues for histopathology and villous measuring. Laboratorial analyses were made using saturated sugar centrifugation technique following oocyst counting and measurements with an ocular micrometric. Biology of the parasite was evaluated throughout the sporulation time, pre-patent and paten periods of infection, morphology of endogenous stages and oocyst and relationship with the mathematical cons tant Phi. It was not observed anatomy-clinics differences (p>0.05) between birds of different treatments due to all parameters used, however the response with betaine was similar to treatment with salinomycin and potassium penicillin G, indicating there are possibilities to use betaine to substitute these drugs. Nevertheless, betaine show ability to decrease oocyst output against control group but fewer than salinomycin. Regarding the biology of the parasite, although betaine affected the form and size of oocysts, little influence was observed in the endogenous stages according to measurements of trophozoites and macrogametes. Within the morphology it was observed a great relationship between the development of sporocysts of E. acervulina and the mathematical constant Phi. Um estudo foi realizado com o objetivo de se avaliar a an?tomo-cl?nica e a biologia em frangos de corte experimentalmente infectados com Eimeria acervulina e suplementados com beta?na. Para tanto 390 pintos de corte Cobb foram alojados em baterias met?licas num delineamento experimental em blocos ao acaso constitu?do de cinco tratamentos e seis repeti??es com treze aves, incluindo-se um controle positivo, um grupo tratado com salinomicina e penicilina G pot?ssica e mais tr?s n?veis de beta?na na ra??o sendo estes 0,05%, 0,10% e 0,15%. A dieta era composta de uma mistura de milho e soja elaborada conforme as exig?ncias de frangos de corte, sendo ?gua e comida fornecidos ad libitum. Aos 14 dias de vida as aves foram infectadas individualmente por via oral com 2 x 105 oocistos esporulados de E. acervulina. A seguir, nos per?odos de 0-7 e 7-14 dias ap?s a infec??o (DAI), foram determinados o ganho de peso, consumo de ra??o, produ??o de oocistos, n?vel de prote?nas plasm?ticas e observados sinais cl?nicos. Necropsias foram realizadas no 0, 4?, 7? e 14? DAI, sendo uma ave de cada repeti??o eutanasiada para realiza??o do escore de les?o, coleta de sangue e de tecido intestinal para histopatologia e mensura??o das vilosidades intestinais. A an?lise laboratorial e preparo dos oocistos foi realizada atrav?s da t?cnica de centrifuga??o em solu??o saturada de a??car seguida de contagem por grama de fezes e mensura??o com ocular microm?trica. A biologia do parasito foi avaliada atrav?s do tempo de esporula??o, per?odo pr?-patente, per?odo patente da infec??o, morfometria de fases end?genas e oocistos e a rela??o com a constante matem?tica Phi. N?o foi observada diferen?a (p>0,05) an?tomo-cl?nica nas aves dos diferentes tratamentos utilizados em rela??o a todos os par?metros utilizados, no entanto a resposta com a beta?na foi semelhante a do tratamento com salinomicina e penicilina G pot?ssica, indicando que h? possibilidade de ser utilizada em substitui??o a este medicamento. Ainda, a beta?na demonstrou capacidade de limitar a produ??o de oocistos frente ao grupo controle, por?m num n?vel inferior a salinomicina. Quanto ? biologia do parasito, embora a beta?na fosse capaz de exercer influ?ncia sob o formato e o tamanho dos oocistos e esporocistos, pouca influ?ncia foi exercida nos est?gios end?genos com base na mensura??o de trofozo?tos e macrogametas. Atrav?s da morfologia foi poss?vel se observar uma grande rela??o entre o desenvolvimento dos esporocistos de E. acervulina e a constante matem?tica Phi.
- Published
- 2007
84. Quantitative and qualitative avaluation of eggs proteins of Rhipicephalus (Boophilus) microplus and Rhipicephalus (Rhipicephalus) sanguineus (Acari: Ixodidae) during oviposition and embryogenese
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Raia, Vanessa de Almeida, Famadas, K?tia Maria, and Flausino, Walter
- Subjects
carrapato ,eletroforese ,electrophoresis ,postura ,tick ,posture ,Medicina Veterin?ria - Abstract
Made available in DSpace on 2016-04-28T20:15:25Z (GMT). No. of bitstreams: 1 2007 - Vanessa de Almeida Raia.pdf: 1677171 bytes, checksum: e3f8cffe7eb95e4096f3adf06552ae0c (MD5) Previous issue date: 2007-02-26 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES To fill some gaps on intrinsic mechanisms of the biology of the oviposition and embryogenesis of R. (B.) microplus and R. (R.) sanguineus, was evaluated the variability protein in eggs per day of posture and incubation. For this, engorged female laid eggs in controlled environment chamber (27 ? 1oC, 80 ? 5% UR, and darkness). As soon as the female initiated the oviposition, egg samples of 50 mg was collected daily, conditioned in eppendorf tube and preserved in freezer - 20?C, characterizing the period of posture. Samples of 50 mg was removed from a fresh egg mixture and put in perforated eppendorf tube, kept in environment chamber (27 ? 1oC, 80 ? 5% UR, and darkness). Daily, one tube was transferred to freezer -20?C until the first larva hatch. Thus a sequence of different stage of embryogenesis was obtained. The Bradford method was used to measure the protein concentration and subsequently, the electrophoresis profiles was performed in SDS-PAGE. The protein concentrations was correlated with the oviposition and embryogenesis days using the Pearson (r) correlation and for this, the data was transformed in logarithmic value [log (X+1)] after the normality to be discarded (test of Shapiro-Wilk). During oviposition the protein concentrations of the eggs of R. (B.) microplus and R. (R.) sanguineus remained constant until the last days when abrupt increase was observed. In both of species, variation in the concentration of protein was observed during all embryonic period. The number of detectable bands of proteins decreasing during oviposition and embryogenesis days, but in the last days a new band was found. It can inferred that the proteins variation in the eggs of R. (B.) microplus and R. (R.) sanguineus is correlated with the days oviposition and incubation. The ticks R. (B.) microplus and R. (R.) sanguineus have a different oviposition profile proteins model that can be use as phenetic feature. As well, a different way of degradation of protein for each species was characterized. Objetivando preencher algumas lacunas sobre mecanismos intr?nsecos da biologia da oviposi??o e embriog?nese de R. (B.) microplus e R. (R.) sanguineus, foi avaliada a variabilidade prot?ica dos ovos por dia de postura e incuba??o. Para tal, f?meas ingurgitadas foram colocadas para efetuar postura em estufa biol?gica sob condi??es controladas (27 ? 1oC, 80 ? 5% UR, escotofase). Ap?s in?cio da postura, amostras di?rias de 50 mg de ovos foram coletadas, acondicionadas e preservadas a 20?C, caracterizando o per?odo de postura. A partir de um pool de ovos rec?m colocados, foram obtidas al?quotas de 50 mg que acondicionadas em tubos de eppendorf perfurados foram mantidas em estufa biol?gica nas mesmas condi??es controladas descritas acima. Desde a separa??o das al?quotas at? o surgimento da primeira larva, diariamente uma amostra foi transferida para freezer ? -20?C, obtendo-se assim ovos seq?encialmente em diferentes momentos da embriog?nese. Para dosagem das prote?nas utilizou-se o m?todo de Bradford, e os perfis eletrofor?ticos foram tra?ados atrav?s de eletroforese em gel de poliacrilamida. Os dados das concentra??es prot?icas foram correlacionados com os dias de postura e de embriog?nese. Para isso, utilizou-se o coeficiente de correla??o de Pearson (r), com os dados da concentra??o transformados logar?timicamente [log (X+1)]. Os dados foram transformados ap?s o descarte da normalidade (teste de Shapiro-Wilk). De modo geral as concentra??es das prote?nas nos ovos de R. (B.) microplus e R. (R.) sanguineus durante a postura mantiveram-se constantes at? os ?ltimos dias quando se observou aumento abrupto das concentra??es. Nas duas esp?cies, foram observadas varia??es nas concentra??es das prote?nas durante o per?odo embrion?rio. Ainda em ambas esp?cies, na an?lise das bandas prot?icas, o n?mero de bandas detect?veis diminuiu ao longo do per?odo de postura e embriog?nese, sendo observado nos ?ltimos dias surgimento de uma nova banda. Pode-se depreender que a varia??o na concentra??o das prote?nas dos ovos de R. (B.) microplus e R. (R.) sanguineus est? correlacionada com os dias de postura e incuba??o, atrav?s do aumento na concentra??o de prote?nas ? medida que o final da postura e eclos?o da larva se aproximam. Devido ?s diferen?as entre os perfis prot?icos de R. (B.) microplus e R.(R.) sanguineus ao longo dos dias de postura, conclui-se que as prote?na s disponibilizadas aos ovos durante o per?odo de postura s?o diferentes entre estas duas esp?cies e que os zimogramas podem ser utilizados como marcadores fen?ticos. Ainda pode-se concluir que, ao longo da embriog?nese, devido ao desaparecimento e surgimento de bandas prot?icas, as prote?nas dispon?veis para o embri?o de R. (B.) microplus e R.(R.) sanguineus s?o biotransformadas de modo que h? um perfil de degrada??o particular para cada esp?cie.
- Published
- 2007
85. Ticks (Acari: Ixodidae) and tick-borne agents associated with domestic dogs in an environmental protection area in Brazil, with molecular evidence of Rhipicephalus linnaei (Audouin, 1826).
- Author
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Santos HF, Flausino W, Martins TF, Silito IS, Luz HR, Serpa MCA, Labruna MB, and Faccini JLH
- Subjects
- Animals, Dogs, Brazil, Female, Ixodidae, Male, Prevalence, Tick-Borne Diseases veterinary, Tick-Borne Diseases epidemiology, Rickettsia isolation & purification, Rickettsia genetics, Rhipicephalus, Dog Diseases parasitology, Dog Diseases epidemiology, Tick Infestations veterinary, Tick Infestations epidemiology
- Abstract
Wild animals and domestic dogs living in human dwellings near forested areas can share ectoparasites, including ticks. In this study, we surveyed ticks associated with dogs which tutors living in the Palmares Environmental Protection Area (EPA Palmares). Dogs were classified into three categories, domiciled, semi-domiciled and wandering dogs according to dog care/ type of dwelling. Ticks were collected monthly from January to December, 2020. Overall, 60 (33.9%) out of 177 examined dogs were infested by ticks. Six species of ticks were identified: Rhipicephalus linnaei, Amblyomma aureolatum, Amblyomma sculptum, Amblyomma ovale, Amblyomma dubitatum and Rhipicephalus microplus. The overall prevalence and presence in semi-domicilied+wandering dogs was higher for A. aureolatum than for R. linnaei by the Chi-square statistic tests. A random sample of 50 ticks, collected from 22 different dogs, were processed through molecular analyses. Ticks were submitted to DNA extraction and also by PCR, using specific primers in order to pathogens monitoring. Four males of A. aureolatum yielded DNA sequences (350 bp) that were 100% identical to the type strain of Rickettsia bellii in GenBank (CP000087).
- Published
- 2024
- Full Text
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86. First report of Tyzzeria parvula (Kotlán, 1933) Klimes, 1963 (Apicomplexa: Eimeriidae), in swan goose Anser cygnoides L., 1758, in Brazil.
- Author
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Berto BP, Flausino W, and Lopes CW
- Subjects
- Animals, Brazil, Feces parasitology, Anseriformes parasitology, Bird Diseases parasitology, Coccidiosis veterinary, Eimeriidae
- Abstract
This is the first description of Tyzzeria parvula from the swan goose (Anser cygnoides) in the State of Rio de Janeiro, Brazil. Fecal samples were collected from 15 swan geese, but only four of them shed oocysts in feces. After sporulation, the oocysts were spherical to sub-spherical, and measured 12.4 +/- 1.0 (11-15) x 10.4 +/- 0.8 mum (8-12). They presented a shape index of 1.2 (1.0-1.4), with a bi-layered wall that was 0.7 +/- 0.1 mum (0.6-0.8) thick. The outer side was smooth and colorless, while the inner side was pale greenish. Micropyles and polar granules were absent. The residuum sometimes formed a mass of spherules and granules and, at other times, was dispersed. Sporozoites had one rounded end and the other end was fine and slightly curved.
- Published
- 2008
87. [Evaluation of small intestine and mesenteric lymph nodes of dogs (Canis familiaris) experimentally infected by Sarcocystis cruzi (Hasselman, 1923) Wenyon, 1926 (Apicomplexa: Sarcocystidae)].
- Author
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De Meireles GS, Paes-De-Almeida EC, Carvalho Filho PR, Flausino W, Rodrigues Jda S, Ferreira AM, and Lopes CW
- Subjects
- Animals, Sarcocystosis parasitology, Dog Diseases parasitology, Dogs parasitology, Intestine, Small parasitology, Lymph Nodes parasitology, Sarcocystosis veterinary
- Abstract
Species of the genus Sarcocystis are considered as important parasites of domestic animals. Dogs are considered as definitive host for a variety species of Sarcocystis, when they fed on intermediated host tissues cysts shed sporocysts in their feces. Grinded bovine cardiac muscles, positive for Sarcocystis cruzi was given to two puppies free of coccidia. Both animals shed sporocysts in their feces at 12 days after infection (DAI). These sporocysts measured 17.44 +/- 0.82 11.60 +/- 0.66 mum with shape index of 1.50 +/- 0.05. At 23 DAI, these animals were posted and samples of the small intestine, such as: duodenum, jejune, ileum and mesenteric lymph nodes were collected. In the analysis of small intestine, sporocysts were observed under de mucosa and they were characterized by sporulated sporocysts with sporozoites. Lesions were consisted of discrete edema and plasmocytic cells infiltrations which they were associated to a minimal inflammatory reaction in the presence of parasitic stages. On the other hand, sporocysts were observed at the cortical region near of lymphatic vessels adjacent to mesenteric lymph nodes capsule. It indicated the involvement of the lymphatic vessels in the sporocysts dispersion in the dog mesenteric lymph nodes.
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- 2008
88. [Distribution of anti-Neospora caninum antibodies in dairy cows at municipalities of Resende and Rio Claro in the State of Rio de Janeiro, Brazil].
- Author
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Munhoz AD, Flausino W, Silva RT, Almeida CR, and Lopes CW
- Subjects
- Animals, Brazil, Dairying, Female, Antibodies, Protozoan blood, Cattle blood, Neospora immunology
- Abstract
This study aimed to verify the prevalence of anti-Neospora caninum antibodies in dairy cows from municipalities of Resende and Rio Claro, both located at sulfluminense dairy belt. A total of 29 farms from Resende and 28 from Rio Claro were randomly selected. To evaluate the association between herds and animals against the etiological agent χ² tests were used. Seventy eight animals at Resende (25.74%, confidence intervals(IC) at 95%: 15.7-25.8%) had anti-N. caninum antibodies, while 53 animals (20.38%, IC 21-31.1%) at Rio Claro (p=0.16). No association between positive animals in relationship to municipalities was observed. When considered properties, 26 (89.7%, IC: 76, 3-94.9%) at Resende and 24 (85.71%, IC: 67.3-96%) at Rio Claro had at least a positive animal. This demonstrated that anti-N. caninum antibodies were observed among dairy cows at both municipalities. In spite of abortions were observed with relative frequency in endemic areas of N. caninum, they were not observed in the present study.
- Published
- 2006
89. [Clinical findings observed in rabbits, meat type, infected experimentally by Cystoisospora felis (Wenyon, 1923) Frenkel, 1977 (Apicomplexa: Cystoisosporinae)].
- Author
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da Costa PS, Munhoz AD, Flausino W, and Lopes CW
- Subjects
- Animals, Female, Male, Rabbits, Apicomplexa, Protozoan Infections, Animal diagnosis
- Abstract
Twenty four rabbits type meat, cross-breed of White New Zealand and California, of both sexes, with age of 58 days old, and average weight of 1,586 g were used. Than, they were divided in three groups of eight rabbits each. The first group was inoculated orally, in two serial days, with 10(6) sporulated oocysts of Cystoisospora felis per animal, second group was considered per feed, and thirty group was left as control. Clinical signs as body weight, feed consumption, rectal temperature, and breathing frequency were taken daily. Carcasses weights were taking at 2, 4, 6, 8, 9, 16, 22 and 29 days after infection (DAI) when they were posted. In the first DAI, anorexia, slow movements, low percent of food consumption (85.76%), and of alimentary conversion were observed. Difference of 3.52% in the food consumption was observed between control and infected animals. The inoculated rabbits had high temperatures in the first DAI in comparison to controls and per fed animals (p<0.01) at 2nd and at 4th DAI. In relationship to the weight gain in the 1st week the carcasses of the infected rabbits had minimal difference in comparison to control animals. As conclusion, cystoisosporosis, beside clinical signs, can be interfered in the development of the rabbit.
- Published
- 2006
90. [Prevalence of anti-Toxoplasma gondii antibodies in dairy cattle from Sul Fluminense Paraíba Valley, State of Rio de Janeiro].
- Author
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Albuquerque GR, Munhoz AD, Flausino W, Silva RT, Almeida CR, Medeiros SM, and Lopes CW
- Subjects
- Animals, Brazil, Cattle Diseases epidemiology, Female, Prevalence, Seroepidemiologic Studies, Toxoplasmosis, Animal epidemiology, Antibodies, Protozoan blood, Cattle blood, Cattle parasitology, Cattle Diseases blood, Toxoplasma immunology, Toxoplasmosis, Animal blood
- Abstract
A survey of toxoplasmosis in cattle from Sul Fluminense Paraiba Valley micro region in the State of Rio de Janeiro was realized, where serum samples were collected from 589 animals of 29 dairy farms located at municipalities of Resende and Rio Claro. Serology was performed by using indirect immune fluorescent test (IFAT), and considering as positive to Toxoplasma gondii titles > or = 64. Results found in both municipalities were 14.8% serum reagents animals. When these results were analyzed by each Municipality, Resende had 15.3% (48 animals of 314) positive animals, and 14.2% (39 animals of 275) was observed at Rio Claro. In the analysis of 58 studied dairy farms was observed that 38 (65.5%) of them having positive cows for anti-T. gondii, being 20 (69.0%) at Resende, and 18 (62.1%) at Rio Claro. With regard to serologic samples found in the IFAT, 79 (13.41%) animals were positives with titles of 64, six (1.02%) with 256, two (0.34%) with 1024, and none of animals had titles > or = 4096.
- Published
- 2005
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