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Extensive rearing systems enable higher occurrence of helminths, which is a hindrance in poultry farming, significantly affecting productivity. A survey was conducted to determine the prevalence of gastrointestinal helminths in chickens reared in extensive system in the city of Viçosa, Minas Gerais, Brazil between December 2017 to September 2018. A total of 5579 specimens were recovered from the gastrointestinal tracts of most animals (81.55% of prevalence). Of the positive birds, only 41.67% had mixed infections, and of these, more than 90% were nematodes and cestodes co-infections. Three nematodes (Ascaridia galli, Heterakis gallinarum, Capillaria sp.), seven cestodes (Raillietina tetragona, R. echinobothrida, R. cesticillus, Choanotaenia infundibulum, Hymenolepis cantaniana, H. carioca and Davainea proglottina) and two trematodes (Postharmostomum commutatum and Echinostoma sp.) species were identified. The most dominant helminth species was H. gallinarum (60.19%), which also presented higher average intensity (35.46 ± 0.65) and abundance (21.34 ± 3.01) among all recovered species. The tapeworm species correspond to 42.23% of prevalence and the trematodes correspond to only 3.40%. Despite the scarcity of data in the Brazilian literature on poultry helminths reared in extensive systems, regional parasitological surveys are important. It is expected that these results will contribute to the adoption of prophylactic measures and alternative control strategies in order to reduce the risk of helminth infection in poultry Os sistemas de criação extensivos permitem maior ocorrência de helmintos, o que é um entrave na avicultura, afetando significativamente a produtividade. Um levantamento foi realizado para determinar a prevalência de helmintos gastrointestinais em frangos criados em sistema extensivo na cidade de Viçosa, Minas Gerais, Brasil, entre dezembro de 2017 a setembro de 2018. Um total de 5.579 espécimes foram recuperados do trato gastrointestinal da maioria dos animais (81,55% de prevalência). Das aves positivas, apenas 41,67% tiveram infecções mistas e, destas, mais de 90% foram coinfecções por nematóides e cestóides. Três espécies de nematoides (Ascaridia galli, Heterakis gallinarum, Capillaria sp), sete de cestóides (Raillietina tetragona, R. echinobothrida, R. cesticillus, Choanotaenia infundibulum, Hymenolepis cantaniana, H. carioca and Davainea proglottina) e dois trematódeos (Postharmostomum commutatum and Echinostoma sp.) foram identificadas. A espécie de helmintos mais dominante foi Heterakis gallinarum (60,19%), que também apresentou maior intensidade média (35,46 ± 0,65) e abundância (21,34 ± 3,01) entre todas as espécies recuperadas. As espécies de tênia correspondem a 42,23% da prevalência e os trematódeos correspondem a apenas 3,40%. Apesar da escassez de dados na literatura brasileira sobre helmintos avícolas criados em sistemas extensivos, levantamentos parasitológicos regionais são importantes. Espera-se que esses resultados contribuam para a adoção de medidas profiláticas e estratégias alternativas de controle, a fim de reduzir o risco de infecção por helmintos em aves.

Enteric parasites of migratory quails (Coturnix coturnix) were investigated in Matrouh governorate, Egypt. One hundred and ninety birds were trapped and submitted for examination. The overall prevalence of the enteric parasites in the migratory quails was (75.26%). Eight parasites (two protozoans, two nematodes and four cestodes) were recovered. The recovered protozoan parasites were Eimeria spp. (42.1%), Cryptosporidium spp. (10.52%). The detected nematodes were Subulura brumpti (1.05%) and Dispharynx nasauta (1.57%). While, the detected cestodes were Choanotaenia infundibulum (10.52%), Raillietina tetragona (3.68%), Raillietina echinobothrida (0.5%) and Triaenorhina rectangula (5.26%). The detected Eimeria species were identified as Eimeria bateri and Eimeria uzura.

2 Abstract: A study was carried out on 144 local chickens (Gallus gallus domesticus), from rural area of El-Tarf to determine the prevalence of cestode parasites in the intestinal tract of the chickens. The overall prevalence rate was 88.19%, in the El-Tarf poultry. At least one species of cestodes was found on every chicken examined. Seven species of cestodes were identified in all; they had the following prevalences: Raillietina echinobothrida (83.33%), Raillietina tetragona (68.75%), Raillietina cesticillus (29.16%), Hymenolepis carioca (12.5%), Choanotaenia infundibulum (11.8%), Davainea proglottina (11.11%) and Amoebotaenia cuneata (4.16%). This study showed that there was no significant difference (p>0.05) between the prevalence of cestodes in relation to age and sex.

The present study aimed to identify the tapeworms that parasitize the rock dove Columba livia palastinae and domestic chicken Gallus gallus domesticus in Taif governorate, Saudi Arabia. A total of 115 rock doves and 105 domestic chicken have been examined. Birds were brought in from the wells and farms inside and outside the city of Taif. In rock doves, the percentage of infection was recorded as Cotugnia digonopora 5.21%, Hymenolepis carioca 10.43%, Raillietina echinobothrida 27.82%, Raillietina tetragona 22.6%. The prevalence of infection recorded in Municipal chicken with different types of tapeworms was Cotugnia digonopora 7.61%, Choanotaenia infundibulum 12.38%, Amoebotaenia sphenoides 7.61%, Raillietina echinobothrida 11.42%, Raillietina tetragona 8.57%, Raillietina (Paroniella) kashiwarensis 4.76%. The overall percentage of infected rock pigeons Columba livia palastinae with tapeworms was 66.1% while the percentage of infected chicken Gallus gallus domestica was 52.3%. The study defined and described this species as classification keys in place.

Made available in DSpace on 2021-07-14T10:51:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-12-15. Added 1 bitstream(s) on 2021-07-14T11:39:48Z : No. of bitstreams: 1 S1808-16572016000100233.pdf: 529930 bytes, checksum: 5d0865df9570dada2fa6d85e771f3748 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) O diagnóstico específico e a avaliação da intensidade da infecção helmíntica em aves são fundamentais em estudos de eficácia e determinação de doses de medicamentos direcionados ao seu controle. O presente trabalho avaliou a aplicação e adaptação da metodologia de Mello e Campos, descrita originalmente para diagnóstico parasitológico em cães, na recuperação de escólices de cestódeos parasitos de aves domésticas (Gallus domesticus ). Foram empregadas 52 aves naturalmente infectadas e oriundas de produções rurais, as quais foram submetidas à necropsia parasitológica, adaptando-se a metodologia Mello e Campos. O método consistiu na realização de quatro etapas: conteúdo, imersão, raspado e avaliação. O número de escólices recuperadas por ave variou de 1 a 4.345, e o maior número de escólices foi recuperado do material oriundo da etapa de imersão. As espécies de cestódeos identificadas foram Amoebotaenia cuneata , Choanotaenia infundibulum , Hymenolepis sp., Raillietina tetragona , Raillietina echinobothrida e Raillietina cesticillus . Os resultados foram avaliados estatisticamente, concluindo-se que a metodologia adotada é eficaz para a recuperação de cestódeos de aves, uma vez que possui a etapa de imersão, que permite a recuperação mais eficiente de escólices. The specific diagnosis and evaluation of the intensity of avian helminth infections are essential for efficacy studies and the determination of drug doses targeted to their control. This study evaluated the Mello and Campos method, originally described for parasitological diagnosis in dogs, in the recovery of scolices from cestode parasites of poultry (Gallus domesticus ). A total of 52 naturally infected birds obtained from farms underwent parasitological necropsy using the Mello and Campos method. The method consisted of four steps: content, soaking, scraping and evaluation. The number of scolices recovered per bird ranged from 1 to 4,345, and the highest number of scolices was recovered from material derived from the soaking step. The cestodes species diagnosed were Amoebotaenia cuneata , Choanotaenia infundibulum , Hymenolepis sp., Raillietina tetragona , Raillietina echinobothrida and Raillietina cesticillus . The Mello and Campos method, originally used to test for helminths in dogs, was effective in avian cestode testing because it includes a soaking step, which enables a more efficient recovery of scolices. Instituto Biológico, Laboratório de Parasitologia Animal Instituto Agronômico de Campinas Universidade Camilo Castelo Branco Universidade Estadual Paulista Júlio de Mesquita Filho, School of Veterinary Medicine Universidade Estadual Paulista Júlio de Mesquita Filho, School of Veterinary Medicine FAPESP: 2012/18929-3; 2013/03599-0; 2014/04097-1

One hundred and thirty-seven California quail (Lophortyx californicus) were collected from the Okanagan Valley of British Columbia and examined for helminth parasites during the summers of 1965 and 1966. The following helminth species were found parasitizing California quail from four study areas: two cestodes, Rhabdometra odiosa and Choanotaenia infundibulum, and one nematode, Acuaria spinosa.R. odiosa was recovered from quail from all areas; the other two species were less common and more restricted in distribution. The frequency of infection for R. odiosa was 53.8% in adult quail and 45.8% in juvenile quail. Intensity of infection for R. odiosa was 13.5 specimens from adult and 22.4 from juvenile quail. For C. infundibulum the frequency was 1.5% from adult and 9.7% from juvenile quail; intensity was 2 and 1.7 specimens from adult and juvenile quail respectively. A. spinosa was recovered from three adult quail in 1965; none were found in 1966. Neither C. infundibulum nor A. spinosa has previously been reported from California quail.

INFORMATION is limited on helminth parasites infecting chickens and turkeys in Kansas Ackert (1927) reported a 66% incidence of Heterakis gallinarum in mature chickens. Ferry (1934) reported the tapeworms Raillietina cesticillus, Hymenolepis carioca, R. tetragona, R. echinobothrida Amoebotaenia sphenoides, and Choanotaenia infundibulum from a survey of 50 chickens in Douglas county. Morehouse (1944) reported Capillaria caudinflata from chickens in Brown and Miami counties. Ackert (1956) reported that in an earlier survey of 1000 chickens from the vicinity of Manhattan 49% were infected with Ascaridia galli. Kerr (1958) reported Ascaridia dissimilis from turkeys. Surveys of poultry parasites have been made in the United States by Guberlet (1916, Nebraska), Adams et al. (1933, Texas), Wehr (1937, Washington, D. C.), Koutz (1949, Ohio), Todd (1948, Tennessee), Edgar (1953, Alabama), and Reid (1958, Georgia). Data from these different areas and poultry enterprises are not necessarily applicable to the poultry industry in Kansas. Accordingly, this…

The health monitoring and management systems of coturniculture can be deemed to be in a developmental phase when compared to the poultry industry. Studies regarding taxonomy and parasitic biology in quails (Coturnix japonica) has not been well conducted in Brazil. Most of the information is available from the autopsy case reports, in many ways the parasitic fauna of quails is still unknown. The aim of this study was to conduct a parasitological research in quails in order to contribute to ameliorate this situation. 31 quails, which were 12 months old, were used for the study. Their carcasses and viscera were sent to the Laboratory of Entomology and Tropical Diseases, INPA, Manaus/AM. The circulatory, nervous, respiratory, digestive and reproductive systems of these were studied separately. No blood parasites were found, however, nine species of endoparasites were registered which were distributed among the classes Cestoda, Nematoda and Protozoa. The helminths were distributed in the duodenum, jejunum, ileum, cecum and oviduct. The cecum was found to be the most parasitized organ and contained a wide range of parasites having three species of protozoa and three species of nematodes. Six morphotypes of Eutrichomastix globosus were recorded, and some morphotypes were hyperparasitized with sporangia Sphaerita sp. in the cytoplasm. A large number of parasites were recorded in this study, as well as the protozoan Blastocystis hominis was first being observed for quail. © 2018 Colegio Brasileiro de Patologia Animal.

Parasite prevalence, intensity, and diversity in Nebraska pheasants (Phasianus colchicus) were studied during the fall of 1971. Fifty-four of 63 (86%) pheasants examined for helminths harbored at least one parasite species. Heterakis gallinarum (65% of the pheasants), Choanotaenia infundibulum (48%), Echinoparyphium recurvation (1.6%), and Zygocotyle lunata (1.6%) were recovered. Two of 15 (13%) birds examined for coccidia possessed Eimeria phasiani. None of 35 pheasants examined for hematozoa had patent infections.

CYSTICERCOIDS of various cyclophyllidean families are known to occur in small invertebrate hosts, commonly in arthropods and very occasionally in molluscs and annelids. During the course of some work on the pulmonate snail, Oxychilus cellarius (Mull) one of us noted a 3 per cent infection of the peritoneum around the digestive gland and gut with cysticercoids of what we believe to be a member of the Dilepididae, the first such record from a mollusc. The cysts numbered from one to about fifty in a single specimen and were seen in various stages of development, ranging from what we consider to be the pre-cystic stage to the fully formed, infective cysticercoid. The older cysticercoids with completely formed scolex and bladder resemble very closely the corresponding stage of another cysticercoid of the Dilepididae—that of Choanotaenia infundibulum (Bloch) described by Reid and Ackert1. A full account of these stages will be published later, but meanwhile we wish to direct attention to the earliest stage of this cysticercoid—a form which we regard as being pre-cystic and which, so far as we are aware, is unlike anything previously described.