30 results on '"Mallmann, Larissa"'
Search Results
2. Evaluation of Mastadenovirus and Rotavirus Presence in Phyllostomid, Vespertilionid, and Molossid Bats Captured in Rio Grande do Sul, Southern Brazil
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Sita, Alexandre, Birlem, Gabriela Espíndola, de Souza da Silva, Deivid, Possamai, Gabriela Mattos, Petry, Karla, de Almeida, Paula Rodrigues, Mallmann, Larissa, Stein, Janaína Franciele, Demoliner, Meriane, Gularte, Juliana Schons, Hansen, Alana Witt, Witt, André Alberto, Rigotto, Caroline, Fleck, Juliane Deise, Spilki, Fernando Rosado, da Rocha, Daniela Tonini, and Weber, Matheus Nunes
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- 2024
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3. Detection of human Mastadenovirus C in wild guinea pigs (Cavia aperea aperea) feces
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Sita, Alexandre, Birlem, Gabriela E., de Almeida, Paula R., Stein, Janaína F., Mallmann, Larissa, Demoliner, Meriane, da Silva, Mariana S., Gularte, Juliana S., Hansen, Alana W., Fleck, Juliane D., Spilki, Fernando R., Higino, Severino S. S., de Azevedo, Sergio S., da Rocha, Daniela T., and Weber, Matheus N.
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- 2022
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4. Reinfection cases by closely related SARS-CoV-2 lineages in Southern Brazil
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Gularte, Juliana Schons, da Silva, Mariana Soares, Demoliner, Meriane, Hansen, Alana Witt, Heldt, Fágner Henrique, Silveira, Flávio, Filippi, Micheli, Pereira, Vyctoria Malayhka de Abreu Góes, da Silva, Francini Pereira, Mallmann, Larissa, Fink, Pietra, Laux, Jéssica Luísa, Weber, Matheus Nunes, de Almeida, Paula Rodrigues, Fleck, Juliane Deise, and Spilki, Fernando Rosado
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- 2021
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5. Agroecological seedling production and field cultivation of chicory/Producao de mudas de almeirao e cultivo no campo, em sistema agroecologico
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Pereira, Dercio C., Grutzmacher, Priscila, Bernardi, Francieli H., Mallmann, Larissa S., de M. Costa, Luiz A., and de M. Costa, Monica S.S.
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- 2019
6. HIV-1 genetic diversity and transmitted drug resistance to integrase strand transfer inhibitors among recently diagnosed adults in Porto Alegre, South Brazil
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Nunes, Cynara Carvalho, primary, Sita, Alexandre, additional, Mallmann, Larissa, additional, Birlem, Gabriela Espindola, additional, de Mattos, Larissa Gomes, additional, Da Silva, Daila Haemk, additional, Furlanetto, Karen Oliveira, additional, Hansen, Alana Witt, additional, De Almeida, Paula Rodrigues, additional, Fleck, Juliane Deise, additional, Spilki, Fernando Rosado, additional, de Matos Almeida, Sabrina Esteves, additional, and Weber, Matheus Nunes, additional
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- 2022
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7. Predominance of SARS-CoV-2 P.1 (Gamma) lineage inducing the recent COVID-19 wave in southern Brazil and the finding of an additional S: D614A mutation
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Demoliner, Meriane, primary, da Silva, Mariana Soares, additional, Gularte, Juliana Schons, additional, Hansen, Alana Witt, additional, de Almeida, Paula Rodrigues, additional, Weber, Matheus Nunes, additional, Heldt, Fágner Henrique, additional, Silveira, Flávio, additional, Filippi, Micheli, additional, de Abreu Góes Pereira, Vyctoria Malayhka, additional, da Silva, Francini Pereira, additional, Mallmann, Larissa, additional, Fink, Pietra, additional, de Moura Valim, Andréia Rosane, additional, Possuelo, Lia Gonçalves, additional, Fleck, Juliane Deise, additional, and Spilki, Fernando Rosado, additional
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- 2021
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8. Preliminary analysis of a neotropical plant extract antiviral potential against Chikungunya and Mayaro viruses
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Feitoza Pires, Ellen Caroline, primary, da Silva, Francini Pereira, additional, Schallenberger, Karoline, additional, Hermann, Bruna Saraiva, additional, Mallmann, Larissa, additional, dos Santos, Alini Godinho, additional, Moura, Wellington S., additional, de Oliveira, Eugênio E., additional, Smagghe, Guy, additional, Ascêncio, Sergio Donizeti, additional, Santos Barbosa, Robson dos, additional, Mendes, Ilsamar, additional, Fleck, Juliane Deise, additional, Ribeiro, Bergmann Morais, additional, and de Souza Aguiar, Raimundo Wagner, additional
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- 2021
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9. Predominance of SARS-CoV-2 P.1 (Gamma) lineage inducing the recent wave in southern Brazil and the finding of an additional S: D614A mutation
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Demoliner, Meriane, primary, Silva, Mariana Soares da, additional, Gularte, Juliana Schons, additional, Hansen, Alana Witt, additional, de Almeida, Paula Rodrigues, additional, Weber, Matheus Nunes, additional, Heldt, Fágner Henrique, additional, Silveira, Flávio, additional, Filippi, Micheli, additional, Pereira, Vyctoria Malayhka de Abreu Góes, additional, Silva, Francini Pereira da, additional, Mallmann, Larissa, additional, Fink, Pietra, additional, Valim, Andréia Rosane de Moura, additional, Possuelo, Lia Gonçalves, additional, Fleck, Juliane Deise, additional, and Spilki, Fernando Rosado, additional
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- 2021
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10. Detection of human MastadenovirusC in wild guinea pigs (Cavia aperea aperea) feces
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Sita, Alexandre, Birlem, Gabriela E., de Almeida, Paula R., Stein, Janaína F., Mallmann, Larissa, Demoliner, Meriane, da Silva, Mariana S., Gularte, Juliana S., Hansen, Alana W., Fleck, Juliane D., Spilki, Fernando R., Higino, Severino S. S., de Azevedo, Sergio S., da Rocha, Daniela T., and Weber, Matheus N.
- Abstract
The Adenoviridae family is composed by a high diversity of viruses that are extremely resistant in environment and are frequently excreted in animal reservoir feces for long periods. The knowledge of adenovirus (AdV) diversity among wild species may be important for the understanding of the epidemiology of putative emerging diseases. Cavia aperea aperea, commonly known as wild guinea pigs, wild cavies, or preas, are small herbivorous rodents widely distributed throughout South America and classified in Caviidae family, as well as domestic guinea pigs and capybaras. In order to investigate their potential role as reservoir of zoonotic agents, the present study aimed to verify the presence of AdV in fecal samples of 14 preas from Northeast Brazil. When submitted to nested PCR, two out of 14 samples (14.28%) were positive for AdV and classified as human MastadenovirusC (HAdV-C) using DNA sequencing and phylogenetic analysis. Wild guinea pigs are synanthropic rodents that live in close contact with humans. The investigation of viral agents in rodents is important due to their potential role as reservoirs of human and animal pathogens. Moreover, the present work presents the first known evidence of HAdV in wild guinea pig stool samples, which may represent both the impact of anthropogenic pollution to wild animals and an important knowledge in terms of human health.
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- 2022
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11. Early detection of SARS-CoV-2 P.1 variant in Southern Brazil and reinfection of the same patient by P.2
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Silva, Mariana Soares da, primary, Demoliner, Meriane, additional, Hansen, Alana Witt, additional, Gularte, Juliana Schons, additional, Silveira, Flávio, additional, Heldt, Fágner Henrique, additional, Filippi, Micheli, additional, Silva, Francini Pereira da, additional, Mallmann, Larissa, additional, Fink, Pietra, additional, Silva, Luana Letícia da, additional, Weber, Matheus Nunes, additional, Almeida, Paula Rodrigues de, additional, Fleck, Juliane Deise, additional, and Spilki, Fernando Rosado, additional
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- 2021
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12. Pervasive transmission of E484K and emergence of VUI-NP13L with evidence of SARS-CoV-2 co-infection events by two different lineages in Rio Grande do Sul, Brazil
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Francisco Jr, Ronaldo da Silva, primary, Benites, L. Felipe, additional, Lamarca, Alessandra P., additional, de Almeida, Luiz G.P., additional, Hansen, Alana Witt, additional, Gularte, Juliana Schons, additional, Demoliner, Meriane, additional, Gerber, Alexandra L., additional, de C Guimarães, Ana Paula, additional, Antunes, Ana Karolina Eisen, additional, Heldt, Fagner Henrique, additional, Mallmann, Larissa, additional, Hermann, Bruna, additional, Ziulkoski, Ana Luiza, additional, Goes, Vyctoria, additional, Schallenberger, Karoline, additional, Fillipi, Micheli, additional, Pereira, Francini, additional, Weber, Matheus Nunes, additional, de Almeida, Paula Rodrigues, additional, Fleck, Juliane Deise, additional, Vasconcelos, Ana Tereza R., additional, and Spilki, Fernando Rosado, additional
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- 2021
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13. Pervasive transmission of E484K and emergence of VUI-NP13L with evidence of SARS-CoV-2 co-infection events by two different lineages in Rio Grande do Sul, Brazil
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da Silva Francisco, Ronaldo, primary, Benites, L. Felipe, additional, Lamarca, Alessandra P, additional, de Almeida, Luiz G P, additional, Hansen, Alana Witt, additional, Gularte, Juliana Schons, additional, Demoliner, Meriane, additional, Gerber, Alexandra L, additional, de C Guimarães, Ana Paula, additional, Antunes, Ana Karolina Eisen, additional, Heldt, Fagner Henrique, additional, Mallmann, Larissa, additional, Hermann, Bruna, additional, Ziulkoski, Ana Luiza, additional, Goes, Vyctoria, additional, Schallenberger, Karoline, additional, Fillipi, Micheli, additional, Pereira, Francini, additional, Weber, Matheus Nunes, additional, de Almeida, Paula Rodrigues, additional, Fleck, Juliane Deise, additional, Vasconcelos, Ana Tereza R, additional, and Spilki, Fernando Rosado, additional
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- 2021
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14. Comparison of Different Kits for SARS-CoV-2 RNA Extraction Marketed in Brazil
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Eisen, Ana Karolina Antunes, primary, Demoliner, Meriane, additional, Gularte, Juliana Schons, additional, Hansen, Alana Witt, additional, Schallenberger, Karoline, additional, Mallmann, Larissa, additional, Hermann, Bruna Saraiva, additional, Heldt, Fágner Henrique, additional, de Almeida, Paula Rodrigues, additional, Fleck, Juliane Deise, additional, and Spilki, Fernando Rosado, additional
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- 2020
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15. Pre-treatment of the clinical sample with Proteinase K allows detection of SARS-CoV-2 in the absence of RNA extraction
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Mallmann, Larissa, primary, Schallenberger, Karoline, additional, Demolliner, Meriane, additional, Antunes Eisen, Ana Karolina, additional, Hermann, Bruna Saraiva, additional, Heldt, Fágner Henrique, additional, Hansen, Alana Witt, additional, Spilki, Fernando Rosado, additional, and Fleck, Juliane Deise, additional
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- 2020
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16. Soil contamination of a public park by human and canine mastadenovirus, as well as hookworms and Toxocara spp eggs
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Eisen, Ana Karolina Antunes, primary, Demoliner, Meriane, additional, Oliveira, Kelen Gras de, additional, Troian, Eduardo Artur, additional, Mallmann, Larissa, additional, Filippi, Micheli, additional, Almeida, Paula Rodrigues de, additional, and Spilki, Fernando Rosado, additional
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- 2019
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17. Early detection of SARS-CoV-2 P.1 variant in Southern Brazil and reinfection of the same patient by P.2.
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Soares da Silva, Mariana, Demoliner, Meriane, Witt Hansen, Alana, Schons Gularte, Juliana, Silveira, Flávio, Henrique Heldt, Fágner, Filippi, Micheli, de Abreu Góes Pereira, Vyctoria Malayhka, Pereira da Silva, Francini, Mallmann, Larissa, Fink, Pietra, Letícia da Silva, Luana, Nunes Weber, Matheus, Rodrigues de Almeida, Paula, Deise Fleck, Juliane, and Rosado Spilki, Fernando
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SARS-CoV-2 ,REINFECTION ,GENOMICS - Abstract
Multiple variants of the Severe Acute Respiratory Syndrome coronavirus 2 virus (SARS-CoV-2) have been constantly reported across the world. The B.1.1.28 lineage has been evolving in Brazil since February 2020 and originated the P.1 variant of concern (VOC), recently named as the Gamma variant by the newly WHO nomenclature proposal, and P.2 as a variant of interest (VOI). Here we describe an early case of P.1 primary infection in Southern Brazil in late November 2020, soon after the emergence of the variant in Manaus, Northern Brazil. The same male patient was reinfected by another B.1.1.28 variant, namely P.2, in March, 2021. The genomic analysis confirmed genetically significant differences between the two viruses recovered in both infections, the P.1 lineage in the first episode and P.2 in the reinfection. Due the very early detection of P.1, we have also investigated the circulation of P.1 in the same region by differential RT-qPCR, showing that this was an isolated case of P.1 at the time of detection, and this variant has disseminated and became prominent from late January to the end of March, 2021. SARS-CoV-2 recent reports of reinfection have raised critical questions on whether and how well a first infection protects against reinfection. [ABSTRACT FROM AUTHOR]
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- 2021
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18. Caenorhabditis elegans as a suitable model to evaluate the toxicity of water from Rolante River, southern Brazil.
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Rodrigues, Vinícius Bley, Menezes, Júlia Machado, da Silva, Laura Cé, Müller, Isadora, Mallmann, Larissa, Hermann, Bruna Saraiva, Menezes, Charlene, Brucker, Natália, da Vida, Roselaine L, Picada, Jaqueline Nascimento, Boaretto, Fernanda Brião Menezes, Schneider, Anelise, Linden, Rafael, Zanella, Renato, Fleck, Juliane Deise, and Charão, Mariele Feiffer
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AMES test ,CAENORHABDITIS elegans ,POLLUTANTS ,WATER quality ,COPPER ,AGRICULTURE ,PESTICIDES ,AQUATIC resources - Abstract
Urbanization and agricultural activities increased environmental contaminants. Integrated analysis of water parameters and bioassays represents an essential approach to evaluating aquatic resource quality. This study aimed to assess water quality by microbiological and physicochemical parameters as well as the toxicological effects of water samples on the Ames test and Caenorhabditis elegans model. Samples were collected during (collection 1) and after (collection 2) pesticide application in the upper (S1), middle (S2), and lower (S3) sections of the Rolante River, southern Brazil. Metals were determined by GFAAS and pesticides by UPLC-MS/MS. Bioassays using the Ames test and the nematode C. elegans were performed. Levels of microbiological parameters, as well as Mn and Cu were higher than the maximum allowed limits established by legislation in collection 2 compared to collection 1. The presence of pesticide was observed in both collections; higher levels were found in collection 1. No mutagenic effect was detected. Significant inhibition of body length of C. elegans was found in collection 1 at S2 (P < 0.001) and S3 (P < 0.001) and in collection 2 at S2 (P = 0.004). Comparing the same sampling site between collections, a significant difference was found between the site of collection (F(3,6)=8.75, P = 0.01) and the time of collection (F(1,2)=28.61, P = 0.03), for the S2 and S3 samples. C. elegans model was useful for assessing surface water quality/toxicity. Results suggest that an integrated analysis for the surface water status could be beneficial for future approaches. [ABSTRACT FROM AUTHOR]
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- 2024
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19. ALTERAÇÕES HEMATOLÓGICAS EM PACIENTES FeLV POSITIVO - ESTUDO RETROSPECTIVO.
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da Silva Nunes, Nilson Júnior, Maldaner, Hannele, Sumienski, Juliana, Mallmann, Larissa, Pereira Matheus, Juliana, Heidrich Moure, Aline, and Weber, Matheus
- Abstract
Copyright of Acta Veterinaria Brasilica is the property of Acta Veterinaria Brasilica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2024
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20. Soil contamination of a public park by human and canine mastadenovirus, as well as hookworms and Toxocara spp eggs.
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Antunes Eisen, Ana Karolina, Demoliner, Meriane, Gras de Oliveira, Kelen, Troian, Eduardo Artur, Mallmann, Larissa, Filippi, Micheli, Rodrigues de Almeida, Paula, and Rosado Spilki, Fernando
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SOIL pollution ,HOOKWORMS ,TOXOCARA ,POLLUTION ,INTESTINAL parasites - Abstract
Public parks are leisure environments widely used by both, adults and children, often accompained by their pets. Soil contamination of these environments by enteric viruses and intestinal parasites occurs through these animals feces. The aim of this work was to detect Carnivore protoparvovirus 1 (CPV-1) and different species of Mastadenovirus in soils samples from a park located in a medium-sized city in Brazil and evaluate the presence of helminth eggs and larvae in 18 points of a public park soil samples, as well as feces found on this site during six months. Parasitological analyzes were conducted through flotation and sedimentation techniques, and polymerase chain reaction (PCR) was used for viral detection. Of the 216 soil and 16 feces samples, 49% (106/216) and 12% (2/16) were positivefor nematodes larvae, respectively, through sedimentation techniques. Toxocara spp eggs were found in one soil sample and one feces sample, Trichuris spp eggs were found in only one feces sample and Hookworms eggs were found in four soil samples. After reconstruction work in the streets near the park, 30% (64/216) of the samples were positive for Human Mastadenovirus C (HAdV-C), 1.4% (3/216) for HAdV-E and 0.4% (1/216) for Canine Mastadenovirus A (CAdV-A). The parasitic forms found in this study have demonstrated that the contamination of the park’s soil pose a threat to human and animal health. This was the first study to report the presence of HAdVs and CAdVs in soil samples. [ABSTRACT FROM AUTHOR]
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- 2019
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21. Caenorhabditis elegansas a suitable model to evaluate the toxicity of water from Rolante River, southern Brazil
- Author
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Rodrigues, Vinícius Bley, Menezes, Júlia Machado, da Silva, Laura Cé, Müller, Isadora, Mallmann, Larissa, Hermann, Bruna Saraiva, Menezes, Charlene, Brucker, Natália, da Vida, Roselaine L, Picada, Jaqueline Nascimento, Boaretto, Fernanda Brião Menezes, Schneider, Anelise, Linden, Rafael, Zanella, Renato, Fleck, Juliane Deise, and Charão, Mariele Feiffer
- Abstract
Urbanization and agricultural activities increased environmental contaminants. Integrated analysis of water parameters and bioassays represents an essential approach to evaluating aquatic resource quality. This study aimed to assess water quality by microbiological and physicochemical parameters as well as the toxicological effects of water samples on the Ames test and Caenorhabditis elegansmodel. Samples were collected during (collection 1) and after (collection 2) pesticide application in the upper (S1), middle (S2), and lower (S3) sections of the Rolante River, southern Brazil. Metals were determined by GFAAS and pesticides by UPLC-MS/MS. Bioassays using the Ames test and the nematode C. elegans were performed.Levels of microbiological parameters, as well as Mn and Cu were higher than the maximum allowed limits established by legislation in collection 2 compared to collection 1. The presence of pesticide was observed in both collections; higher levels were found in collection 1. No mutagenic effect was detected. Significant inhibition of body length of C. eleganswas found in collection 1 at S2 (P< 0.001) and S3 (P< 0.001) and in collection 2 at S2 (P= 0.004). Comparing the same sampling site between collections, a significant difference was found between the site of collection (F(3,6)=8.75, P= 0.01) and the time of collection (F(1,2)=28.61, P= 0.03), for the S2 and S3 samples. C. elegansmodel was useful for assessing surface water quality/toxicity. Results suggest that an integrated analysis for the surface water status could be beneficial for future approaches.
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- 2024
- Full Text
- View/download PDF
22. Potential of methane production from cattle based on addition of wet brewery residue to diet
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Mallmann, Larissa Schmatz, Gomes, Simone Damasceno, Zambom, Maximiliane Alavarse, and Costa, Mônica Sarolli Silva de Mendonça
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modelo de Gompertz modificado ,ácidos graxos voláteis ,manejo de dejetos ,volatile fatty acids ,greenhouse gases ,ruminal fermentation ,agroindustrial residues ,resíduos agroindustriais ,CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA [CNPQ] ,manure management, modified Gompertz model ,fermentação ruminal ,gases de efeito estufa - Abstract
Made available in DSpace on 2017-07-10T19:23:40Z (GMT). No. of bitstreams: 1 Larissa.pdf: 1850942 bytes, checksum: 055f99877063a1e529d77540c0b94279 (MD5) Previous issue date: 2013-02-01 Livestock, especially cattle, has been considered one of the main sectors that is responsible for global warming due to rumen methane emission and, to a lesser extent, methane emission by residues. Another concern is the correct disposal of agroindustrial residues. The wet brewery grain is considered as polluting as animal wastes. Thus, such wastes must have correct destination, so their use to feed animal is an option. The wet brewery grain has been recorded as an important substitute for fodder and/or grain in ruminants diet. Thus, this study aimed at evaluating the potential for methane production in cattle fed diets containing different levels of wet brewery grain inclusion, to replace bulky diet, with 0, 20, 25 and 30% rates in dry matter percentage. Four castrated steers, with rumen cannula were studied and distributed in a Latin square design (4x4) in four experimental periods of 21 days each (14 days of adjustment and 7 days for data collection). During the last week of each period, the animals manure and ruminal fluid were collected, whose anaerobic digestion essays were analyzed, during the period of 120 days. So, the following parameters were evaluated: removal of total and volatile solids, removal of soluble chemical oxygen demand, cumulative and daily production of methane, volatile fatty acids production (lactic, acetic, propionic and butyric), acidity/alkalinity ratio and pH of reactors. In order to record ruminal fluid, 96-hour tests were performed in the laboratory to observe the influence of wet brewery grain inclusion on methane and volatile fatty acids production inside the rumen. The statistical evaluation of the process was obtained with curves of cumulative production of methane that were adjusted according to Gompertz modified model. Tukey test was used to compare averages with 5% significance. According to these data, it is concluded that wet brewery grain inclusion influenced on methane production for these animals. There was effect of treatment and period for cumulative production of methane (L). The treatment with the largest inclusion of wet brewery residue showed the highest potential of methane production in wastes. The wet brewery residue inclusion did not affect the production of volatile fatty acids inside rumen. The cumulative methane production (mL) of ruminal fluid was influenced by the inclusion of wet brewery residue on animals diet. Nevertheless, the lowest production occurred with an increasing supply of wet brewery residue. The Gompertz modified model provided a good adjustment to the methane production data. Consequently, wet brewery residue can be considered an alternative diet to replace corn silage up to 30% (DM), since it reduces methane production inside the rumen (environmental benefit) and increases methane production from residues (energy and economic benefit). A pecuária, sobretudo a bovina, tem sido considerada um dos principais setores responsáveis pelo aquecimento global, devido à emissão de metano ruminal e, em menor proporção, à emissão de metano pelos dejetos. Outra preocupação é a correta destinação dos resíduos agroindustriais. O resíduo úmido de cervejaria é considerado tão poluidor quanto os dejetos animais. Desta forma, é importante que este subproduto tenha destino correto e uma opção é o uso na alimentação animal. O resíduo úmido de cervejaria tem se mostrado um importante substituto para forragens e/ou grãos na dieta de ruminantes. Portanto, o objetivo deste trabalho foi avaliar o potencial de produção de metano de bovinos alimentados com dietas que continham diferentes níveis de inclusão de resíduo úmido de cervejaria (RUC), em substituição ao volumoso da dieta, cujas doses foram: 0, 20, 25 e 30% em porcentagem de massa seca. Foram utilizados quatro bovinos machos, castrados, portadores de cânula ruminal, distribuídos em delineamento quadrado latino (4x4), em quatro períodos experimentais de 21 dias cada (14 dias de adaptação e 7 dias de coleta de dados). Na última semana de cada período, coletaram-se dejetos e líquido ruminal dos animais. Com os dejetos coletados, realizaram-se ensaios de biodigestão anaeróbia, no período de 120 dias, nos quais foram avaliados a remoção de sólidos totais e voláteis, a remoção da demanda química de oxigênio solúvel, a produção diária e acumulada de gás metano, a produção de ácidos graxos voláteis (lático, acético, propiônico e butírico), a relação acidez/alcalinidade e o pH dos reatores. Em relação ao líquido ruminal, foram realizados testes de 96 horas, em laboratório, para verificar a influência da inclusão de RUC na produção de gás metano e ácidos graxos voláteis no rúmen. Para a avaliação estatística do processo, utilizaram-se curvas de produção acumulada de metano, ajustadas segundo modelo de Gompertz modificado. O teste de Tukey foi adotado para comparação das médias, com nível de significância de 5%. Com os dados obtidos, conclui-se que a inclusão de resíduo úmido de cervejaria teve influência na produção de metano nesses animais; houve efeito de tratamento e período para a produção acumulada de metano (L). O tratamento com maior inclusão de resíduo úmido de cervejaria apresentou maior potencial de produção de metano nos dejetos; a inclusão de RUC não alterou o perfil de produção de ácidos graxos voláteis no rúmen; a produção acumulada de metano (mL) do líquido ruminal foi influenciada pela inclusão de resíduo úmido de cervejaria à dieta. Todavia, a menor produção ocorreu com o aumento do fornecimento de resíduo úmido de cervejaria. O modelo de Gompertz modificado apresentou bom ajuste aos dados de produção de gás metano. Logo, o resíduo úmido de cervejaria pode ser considerado alimento alternativo para substituir a silagem de milho, em até 30% (MS), uma vez que diminui a produção de metano no rúmen (benefício ambiental) e aumenta a produção de metano nos dejetos (benefício energético e econômico).
- Published
- 2013
23. Dinâmica do glifosato em latossolo vermelho distroférrico fertirrigado com água residuária da suinocultura
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Mallmann, Larissa Schmatz, Sampaio, Silvio César, Sene, Luciane, Coelho, Silvia Renata Machado, and Lana, Maria do Carmo
- Subjects
Biodegradação ,sorption ,Nfosfonometilglicina ,chromatography ,Cromatografia ,Sorção ,N-Phosphomethylglycine ,CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA [CNPQ] ,microorganisms ,biodegradation ,Micro-organismos - Abstract
Made available in DSpace on 2017-05-12T14:47:56Z (GMT). No. of bitstreams: 1 Larissa Schmatz Mallmann.pdf: 2003631 bytes, checksum: 519afeaebe0e29d763ac273daff04487 (MD5) Previous issue date: 2009-02-12 The increase in agriculture on foodstuff demand asked for an alternative of development and expansion, as well as the use of chemicals that could increase productivity. The use of glyphosate herbicide is an example, since it is mainly applied on soybean crop. The western Paraná State turns up as an important producer of grains and swine, but the wastes produced on swine activity are also potential environmental polluters when wrongly managed. So, the use of swine wastewater comes as an alternative source of microorganisms to degrade this herbicide in soil. In this study, it was evaluated the glyphosate displacement in soil, using swine wastewater as a source of microorganisms and organic matter. Four acrylic columns were prepared with soil (sterile or not), wastewater or distilled water and a glyphosate solution (112.5 g L-1). After the preparation, the columns were incubated for seven days in BOD incubator at 23°C, so that microorganisms could be adapted to the medium. Then, the leaching test was carried out and the samples were analyzed by high-performance liquid chromatography. The treatments showed similar behavior among themselves and there was no peak that could represent glyphosate. This suggests that it has been adsorbed or was mineralized. At last, organic matter did not influence any treatment. Em virtude do aumento na demanda por alimentos, buscou-se na agricultura, como alternativa de desenvolvimento e expansão, o uso de produtos químicos que aumentassem a produtividade. Um exemplo é a utilização do herbicida glifosato, aplicado principalmente na cultura da soja. O oeste do Estado do Paraná apresenta-se como importante produtor de grãos e de suínos, porém os efluentes gerados na atividade da suinocultura apresentam-se como potenciais poluidores ambientais, quando mal manejados. Uma alternativa é utilização da água residuária da suinocultura como fonte de micro-organismos para degradar o herbicida presente no solo. Neste estudo, avaliou-se o deslocamento do glifosato no solo, utilizando-se água residuária de suinocultura como fonte de micro-organismos e matéria orgânica. Foram montadas 4 colunas de acrílico contendo solo (estéril ou não), água residuária ou destilada e solução de glifosato (112,5 g L-1). Após a montagem, as colunas ficaram incubadas por 7 dias em estufa BOD a 23 ºC, para que os micro-organismos pudessem se adaptar ao meio. Em seguida, foi realizado o ensaio de lixiviação e analisaram-se as amostras em cromatografia líquida de alta eficiência. Os tratamentos mostraram comportamento semelhante entre si, não existindo pico representando o glifosato, sugerindo que este tenha ficado adsorvido ou que foi mineralizado. A matéria orgânica também não teve influência nos tratamentos.
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- 2009
24. Produção de mudas de almeirão e cultivo no campo, em sistema agroecológico.
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Pereira, Dercio C., Grutzmacher, Priscila, Bernardi, Francieli H., Mallmann, Larissa S., Costa, Luiz A. de M., Costa, Mônica S. S. de M., Pereira, Dercio C., Grutzmacher, Priscila, Bernardi, Francieli H., Mallmann, Larissa S., Costa, Luiz A. de M., and Costa, Mônica S. S. de M.
- Abstract
Objetivou-se, neste trabalho, avaliar o desenvolvimento das mudas de almeirão em diferentes substratos orgânicos e verificar o comportamento em bandejas, após o transplante no campo e na pós-colheita, constituindo três experimentos. Foram avaliados o uso do substrato comercial e quatro misturas de proporções de composto, areia e pó de basalto. Foram quatro fases de avaliação: aos 13 e 26 dias após a emergência (DAE), aos 74 dias após o transplante e na pós-colheita. Avaliaram-se o comprimento e a massa da matéria seca de raiz e de parte aérea, número de folhas por planta, diâmetro do coleto, área foliar e a conservação pós-colheita. O composto orgânico e as misturas foram superiores ao substrato comercial, na maioria das características avaliadas nos 13 e 26 DAE; entretanto, o substrato comercial superou os demais tratamentos para o comprimento de raiz. Os substratos orgânicos (T2 e T3) podem ser recomendados para a produção de mudas de almeirão com desenvolvimento satisfatório em sistema de cultivo em bandejas e a campo e, de igual forma, em pós-colheita; o uso de composto orgânico como substrato para produção de mudas propiciou o desenvolvimento de mudas mais vigorosas e plantas mais resistentes no campo do que o substrato comercial.
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- 2012
25. Produção de mudas de almeirão e cultivo no campo, em sistema agroecológico
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Pereira, Dercio C., primary, Grutzmacher, Priscila, additional, Bernardi, Francieli H., additional, Mallmann, Larissa S., additional, Costa, Luiz A. de M., additional, and Costa, Mônica S. S. de M., additional
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- 2012
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26. PERDA DE CARGA EM TUBULAÇÕES E CONEXÕES CONDUZINDO ÁGUA RESIDUARIA DA AVICULTURA
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Sampaio, Silvio Cesar, primary, Frigo, Elisandro Pires, primary, Vilas Boas, Marcio Antonio, primary, Queiroz, Manoel M. F. de, primary, Gomes, Benedito Martins, primary, and Mallmann, Larissa Schmatz, primary
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- 2007
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27. DESEMPENHO DO SISTEMA DE GOTEJAMENTO E DE FILTROS UTILIZANDO ÁGUA RESIDUÁRIA DA SUINOCULTURA
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Frigo, Elisandro Pires, primary, Sampaio, Silvio Cesar, primary, Freitas, Paulo Lorenço, primary, Nóbrega, Lúcia Helena, primary, Santos, Reginaldo Ferreira, primary, and Mallmann, Larissa Schmatz, primary
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- 2006
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28. Uso de água residuária da suinocultura na bioestabilização de resíduos verdes urbanos
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Suszek, Morgana, primary, Sampaio, Silvio C., additional, Santos, Reginaldo F., additional, Nunes, Ortência L. G. S., additional, Gomes, Simone D., additional, and Mallmann, Larissa S., additional
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- 2005
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29. Caenorhabditis elegans as a suitable model to evaluate the toxicity of water from Rolante River, southern Brazil.
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Rodrigues VB, Menezes JM, da Silva LC, Müller I, Mallmann L, Hermann BS, Menezes C, Brucker N, da Vida RL, Picada JN, Boaretto FBM, Schneider A, Linden R, Zanella R, Fleck JD, and Charão MF
- Abstract
Urbanization and agricultural activities increased environmental contaminants. Integrated analysis of water parameters and bioassays represents an essential approach to evaluating aquatic resource quality. This study aimed to assess water quality by microbiological and physicochemical parameters as well as the toxicological effects of water samples on the Ames test and Caenorhabditis elegans model. Samples were collected during (collection 1) and after (collection 2) pesticide application in the upper (S1), middle (S2), and lower (S3) sections of the Rolante River, southern Brazil. Metals were determined by GFAAS and pesticides by UPLC-MS/MS. Bioassays using the Ames test and the nematode C. elegans were performed. Levels of microbiological parameters, as well as Mn and Cu were higher than the maximum allowed limits established by legislation in collection 2 compared to collection 1. The presence of pesticide was observed in both collections; higher levels were found in collection 1. No mutagenic effect was detected. Significant inhibition of body length of C. elegans was found in collection 1 at S2 ( P < 0.001) and S3 ( P < 0.001) and in collection 2 at S2 ( P = 0.004). Comparing the same sampling site between collections, a significant difference was found between the site of collection (F(3,6)=8.75, P = 0.01) and the time of collection (F(1,2)=28.61, P = 0.03), for the S2 and S3 samples. C. elegans model was useful for assessing surface water quality/toxicity. Results suggest that an integrated analysis for the surface water status could be beneficial for future approaches., Competing Interests: There are no conflicts of interest to declare., (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
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- 2023
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30. Early detection of SARS-CoV-2 P.1 variant in Southern Brazil and reinfection of the same patient by P.2.
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Silva MSD, Demoliner M, Hansen AW, Gularte JS, Silveira F, Heldt FH, Filippi M, Pereira VMAG, Silva FPD, Mallmann L, Fink P, Silva LLD, Weber MN, Almeida PR, Fleck JD, and Spilki FR
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- Brazil, Humans, Male, Reinfection, COVID-19, SARS-CoV-2
- Abstract
Multiple variants of the Severe Acute Respiratory Syndrome coronavirus 2 virus (SARS-CoV-2) have been constantly reported across the world. The B.1.1.28 lineage has been evolving in Brazil since February 2020 and originated the P.1 variant of concern (VOC), recently named as the Gamma variant by the newly WHO nomenclature proposal, and P.2 as a variant of interest (VOI). Here we describe an early case of P.1 primary infection in Southern Brazil in late November 2020, soon after the emergence of the variant in Manaus, Northern Brazil. The same male patient was reinfected by another B.1.1.28 variant, namely P.2, in March, 2021. The genomic analysis confirmed genetically significant differences between the two viruses recovered in both infections, the P.1 lineage in the first episode and P.2 in the reinfection. Due the very early detection of P.1, we have also investigated the circulation of P.1 in the same region by differential RT-qPCR, showing that this was an isolated case of P.1 at the time of detection, and this variant has disseminated and became prominent from late January to the end of March, 2021. SARS-CoV-2 recent reports of reinfection have raised critical questions on whether and how well a first infection protects against reinfection.
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- 2021
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- View/download PDF
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