Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors

Detalhes bibliográficos
Autor(a) principal: Martins, Natália Soares
Data de Publicação: 2022
Outros Autores: dos Santos, Carolina Caetano, da Motta, Sara Patron, Moreira, Andrios da Silva, Farias, Nara Amélia da Rosa, Ruas, Jerônimo Lopes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Veterinary Medicine
Texto Completo: https://rbmv.org/BJVM/article/view/1251
Resumo: Parasitic infections are common in sheep farming worldwide. A cross-sectional study was carried out to determine the prevalence and associated risk factors among gastrointestinal parasites and sheep herds from the Brazilian Pampa biome, Rio Grande do Sul state, Brazil. Twenty-one farms were visited, where rectal faecal samples were individually collected from 309 animals. The sheep industry on the studied farms was characterised by small farms with a low level of technification, an extensive grazing system and meat production. Of all samples analysed, strongyle nematodes had the highest prevalence (77.02%), followed by Eimeria spp. (70.55%), Moniezia expansa (20.39%) and Strongyloides papillosus (17.48%). Mixed infection, between helminths and protozoans, was detected in 68.61% of samples. All herds were positive for strongyle and Eimeria spp. A predominance of Haemonchus spp. and Trichostrongylus spp. nematodes was observed in the herds. Younger animals were significantly more affected by Eimeria and M. expansa. In the semi-intensive and intensive systems, a higher frequency of Eimeria and strongyle infections was observed. Parasite infection was significantly reduced at low animal densities. The Brazilian Pampa region presents a high prevalence of gastrointestinal parasites among sheep; age, breeding system and stocking density were factors associated with parasite infection.
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spelling Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated FactorsParasitos Gastrintestinais em Ovinos do Bioma Pampa Brasileiro: Prevalência e Fatores Associadossheep industry, strongyle, Eimeria, Haemonchus, Trichostrongylus.ovinocultura, estrongilídeos, Eimeria, Haemonchus, Trichostrongylus.Parasitic infections are common in sheep farming worldwide. A cross-sectional study was carried out to determine the prevalence and associated risk factors among gastrointestinal parasites and sheep herds from the Brazilian Pampa biome, Rio Grande do Sul state, Brazil. Twenty-one farms were visited, where rectal faecal samples were individually collected from 309 animals. The sheep industry on the studied farms was characterised by small farms with a low level of technification, an extensive grazing system and meat production. Of all samples analysed, strongyle nematodes had the highest prevalence (77.02%), followed by Eimeria spp. (70.55%), Moniezia expansa (20.39%) and Strongyloides papillosus (17.48%). Mixed infection, between helminths and protozoans, was detected in 68.61% of samples. All herds were positive for strongyle and Eimeria spp. A predominance of Haemonchus spp. and Trichostrongylus spp. nematodes was observed in the herds. Younger animals were significantly more affected by Eimeria and M. expansa. In the semi-intensive and intensive systems, a higher frequency of Eimeria and strongyle infections was observed. Parasite infection was significantly reduced at low animal densities. The Brazilian Pampa region presents a high prevalence of gastrointestinal parasites among sheep; age, breeding system and stocking density were factors associated with parasite infection.As infecções parasitárias são comuns na criação de ovinos em todo o mundo. Um estudo transversal foi realizado para determinar a prevalência e fatores de risco associados entre parasitoses gastrintestinais e rebanhos ovinos do bioma Pampa brasileiro, estado do Rio Grande do Sul, Brasil. Vinte e uma fazendas foram visitadas, onde foram coletadas amostras de fezes individuais da ampola retal de 309 animais. A produção ovina era caracterizada por pequenas propriedades com baixo nível de tecnificação, os animais eram criados em sistema extensivo e para produção de carne. De todas as amostras analisadas, os estrongilídeos (Nematoda: Strongylida) foram mais prevalentes (77,02%), seguido por Eimeria spp. (70,55%), Moniezia expansa (20,39%) e Strongyloides papillosus (17,48%). Infecção mista, entre helmintos e protozoários, foi detectada em 68,61% das amostras. Todos os rebanhos foram positivos para estrongilídeos e Eimeria spp. Foi observada predominância dos nematódeos Haemonchus spp. e Trichostrongylus nos rebanhos. Animais mais jovens foram significativamente mais afetados por Eimeria e M. expansa. Nos sistemas semi-intensivo e intensivo, observou-se maior frequência de infecções por Eimeria e estrongilídeos. A infecção parasitária foi significativamente menor em fazendas com baixa densidade animal. A região do Pampa brasileiro apresenta alta prevalência de parasitos gastrintestinais em ovinos; idade, sistema reprodutivo e densidade animal foram fatores associados à infecção parasitária.Sociedade de Medicina Veterinária do Estado do Rio de Janeiro.2022-07-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer reviewedAvaliado pelos paresapplication/pdftext/xmlhttps://rbmv.org/BJVM/article/view/125110.29374/2527-2179.bjvm001522Brazilian Journal of Veterinary Medicine; Vol. 44 (2022); e001522Revista Brasileira de Medicina Veterinária; v. 44 (2022); e0015222527-21790100-2430reponame:Brazilian Journal of Veterinary Medicineinstname:Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)instacron:SBMVenghttps://rbmv.org/BJVM/article/view/1251/1242https://rbmv.org/BJVM/article/view/1251/1245Copyright (c) 2022 Natália Soares Martins, Carolina Caetano dos Santos, Sara Patron da Motta, Andrios da Silva Moreira, Nara Amélia da Rosa Farias, Jerônimo Lopes Ruashttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMartins, Natália Soaresdos Santos, Carolina Caetanoda Motta, Sara PatronMoreira, Andrios da SilvaFarias, Nara Amélia da RosaRuas, Jerônimo Lopes2022-08-03T14:36:00Zoai:ojs.rbmv.org:article/1251Revistahttps://rbmv.org/BJVMONGhttps://rbmv.org/BJVM/oaicontato.rbmv@gmail.com2527-21790100-2430opendoar:2022-08-03T14:36Brazilian Journal of Veterinary Medicine - Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)false
dc.title.none.fl_str_mv Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
Parasitos Gastrintestinais em Ovinos do Bioma Pampa Brasileiro: Prevalência e Fatores Associados
title Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
spellingShingle Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
Martins, Natália Soares
sheep industry, strongyle, Eimeria, Haemonchus, Trichostrongylus.
ovinocultura, estrongilídeos, Eimeria, Haemonchus, Trichostrongylus.
title_short Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
title_full Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
title_fullStr Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
title_full_unstemmed Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
title_sort Gastrointestinal Parasites in Sheep from the Brazilian Pampa Biome: Prevalence and Associated Factors
author Martins, Natália Soares
author_facet Martins, Natália Soares
dos Santos, Carolina Caetano
da Motta, Sara Patron
Moreira, Andrios da Silva
Farias, Nara Amélia da Rosa
Ruas, Jerônimo Lopes
author_role author
author2 dos Santos, Carolina Caetano
da Motta, Sara Patron
Moreira, Andrios da Silva
Farias, Nara Amélia da Rosa
Ruas, Jerônimo Lopes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Martins, Natália Soares
dos Santos, Carolina Caetano
da Motta, Sara Patron
Moreira, Andrios da Silva
Farias, Nara Amélia da Rosa
Ruas, Jerônimo Lopes
dc.subject.por.fl_str_mv sheep industry, strongyle, Eimeria, Haemonchus, Trichostrongylus.
ovinocultura, estrongilídeos, Eimeria, Haemonchus, Trichostrongylus.
topic sheep industry, strongyle, Eimeria, Haemonchus, Trichostrongylus.
ovinocultura, estrongilídeos, Eimeria, Haemonchus, Trichostrongylus.
description Parasitic infections are common in sheep farming worldwide. A cross-sectional study was carried out to determine the prevalence and associated risk factors among gastrointestinal parasites and sheep herds from the Brazilian Pampa biome, Rio Grande do Sul state, Brazil. Twenty-one farms were visited, where rectal faecal samples were individually collected from 309 animals. The sheep industry on the studied farms was characterised by small farms with a low level of technification, an extensive grazing system and meat production. Of all samples analysed, strongyle nematodes had the highest prevalence (77.02%), followed by Eimeria spp. (70.55%), Moniezia expansa (20.39%) and Strongyloides papillosus (17.48%). Mixed infection, between helminths and protozoans, was detected in 68.61% of samples. All herds were positive for strongyle and Eimeria spp. A predominance of Haemonchus spp. and Trichostrongylus spp. nematodes was observed in the herds. Younger animals were significantly more affected by Eimeria and M. expansa. In the semi-intensive and intensive systems, a higher frequency of Eimeria and strongyle infections was observed. Parasite infection was significantly reduced at low animal densities. The Brazilian Pampa region presents a high prevalence of gastrointestinal parasites among sheep; age, breeding system and stocking density were factors associated with parasite infection.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer reviewed
Avaliado pelos pares
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rbmv.org/BJVM/article/view/1251
10.29374/2527-2179.bjvm001522
url https://rbmv.org/BJVM/article/view/1251
identifier_str_mv 10.29374/2527-2179.bjvm001522
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rbmv.org/BJVM/article/view/1251/1242
https://rbmv.org/BJVM/article/view/1251/1245
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv Sociedade de Medicina Veterinária do Estado do Rio de Janeiro.
publisher.none.fl_str_mv Sociedade de Medicina Veterinária do Estado do Rio de Janeiro.
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Medicine; Vol. 44 (2022); e001522
Revista Brasileira de Medicina Veterinária; v. 44 (2022); e001522
2527-2179
0100-2430
reponame:Brazilian Journal of Veterinary Medicine
instname:Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)
instacron:SBMV
instname_str Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)
instacron_str SBMV
institution SBMV
reponame_str Brazilian Journal of Veterinary Medicine
collection Brazilian Journal of Veterinary Medicine
repository.name.fl_str_mv Brazilian Journal of Veterinary Medicine - Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ)
repository.mail.fl_str_mv contato.rbmv@gmail.com
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