Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil

Detalhes bibliográficos
Autor(a) principal: Consalter, Angélica
Data de Publicação: 2020
Outros Autores: Silva, Andressa Ferreira da, Gaia, Vinicius Grangeia, Zanella, Eraldo Lourenso, Souza, Guilherme Nunes de, Ferreira, Ana Maria Reis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36624
Resumo: Neospora caninum is a widely distributed parasite, which significantly impacts reproduction in ruminants. This study aimed to survey the seroprevalence and risk factors associated with neosporosis infection in commercial herds of sheep in the northwest of Rio Grande do Sul, Brazil. Three hundred sheep serum samples were used to investigate anti-N. caninum antibodies using indirect immunofluorescence reaction at a 1:40 dilution. The presence of anti-N. caninum antibodies was detected in 20.3% (61/300) of the samples evaluated; however, positive reactions were observed in all (13/13) flocks sampled. Sheep breeds > 1 year of age had 1.2-fold higher risk for infection with N. caninum (odds ratio 2.2 [95% confidence interval 1-5.1]; P < 0.001). These findings should raise awareness on the importance of serological screening, identification of risk factors, and maintenance of preventive measures, such as not allowing dogs to contact sheep feed and not offering the placental remains of ruminants to canids.
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spelling Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, BrazilSoroprevalência e fatores de risco associados a Neospora caninum em ovinos comerciais do noroeste do Rio Grande do Sul, BrasilNeosporosisRIFISerologySheep.NeosporoseRIFISorologiaOvinos.Neospora caninum is a widely distributed parasite, which significantly impacts reproduction in ruminants. This study aimed to survey the seroprevalence and risk factors associated with neosporosis infection in commercial herds of sheep in the northwest of Rio Grande do Sul, Brazil. Three hundred sheep serum samples were used to investigate anti-N. caninum antibodies using indirect immunofluorescence reaction at a 1:40 dilution. The presence of anti-N. caninum antibodies was detected in 20.3% (61/300) of the samples evaluated; however, positive reactions were observed in all (13/13) flocks sampled. Sheep breeds > 1 year of age had 1.2-fold higher risk for infection with N. caninum (odds ratio 2.2 [95% confidence interval 1-5.1]; P < 0.001). These findings should raise awareness on the importance of serological screening, identification of risk factors, and maintenance of preventive measures, such as not allowing dogs to contact sheep feed and not offering the placental remains of ruminants to canids.Neospora caninum é um parasita amplamente distribuído e de grande importância para a reprodução de ruminantes. O objetivo deste estudo foi realizar um levantamento da soroprevalência e dos fatores de risco associados à neosporose em rebanhos comerciais de ovinos no noroeste do Rio Grande do Sul. Foram utilizadas 300 amostras de soro de ovelhas para investigar anti-N. caninum por Reação de Imunofluorescência Indireta (IFAT) com uma diluição de 1:40. A presença de anticorpos anti-N. caninum foi detectada em 20.3 % (61/300) das amostras avaliadas. Reações positivas foram observadas em todos (13/13) os rebanhos amostrados. Ovinos com mais de um ano tiveram 1.2 mais chances de serem infectados por N. caninum (odds ratio 2.2, intervalo de confiança 1-5.1) (P < 0.001). Com esses dados, chamamos atenção para a importância da triagem sorológica, identificação de fatores de risco e manutenção de medidas de prevalência, como não permitir que os cães entrem em contato com a alimentação das ovelhas e não oferecer os restos placentários dos ruminantes aos canídeos.UEL2020-03-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3662410.5433/1679-0359.2020v41n2p703Semina: Ciências Agrárias; Vol. 41 No. 2 (2020); 703-710Semina: Ciências Agrárias; v. 41 n. 2 (2020); 703-7101679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36624/26885Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessConsalter, AngélicaSilva, Andressa Ferreira daGaia, Vinicius GrangeiaZanella, Eraldo LourensoSouza, Guilherme Nunes deFerreira, Ana Maria Reis2022-10-10T14:05:50Zoai:ojs.pkp.sfu.ca:article/36624Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-10T14:05:50Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
Soroprevalência e fatores de risco associados a Neospora caninum em ovinos comerciais do noroeste do Rio Grande do Sul, Brasil
title Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
spellingShingle Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
Consalter, Angélica
Neosporosis
RIFI
Serology
Sheep.
Neosporose
RIFI
Sorologia
Ovinos.
title_short Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
title_full Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
title_fullStr Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
title_full_unstemmed Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
title_sort Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil
author Consalter, Angélica
author_facet Consalter, Angélica
Silva, Andressa Ferreira da
Gaia, Vinicius Grangeia
Zanella, Eraldo Lourenso
Souza, Guilherme Nunes de
Ferreira, Ana Maria Reis
author_role author
author2 Silva, Andressa Ferreira da
Gaia, Vinicius Grangeia
Zanella, Eraldo Lourenso
Souza, Guilherme Nunes de
Ferreira, Ana Maria Reis
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Consalter, Angélica
Silva, Andressa Ferreira da
Gaia, Vinicius Grangeia
Zanella, Eraldo Lourenso
Souza, Guilherme Nunes de
Ferreira, Ana Maria Reis
dc.subject.por.fl_str_mv Neosporosis
RIFI
Serology
Sheep.
Neosporose
RIFI
Sorologia
Ovinos.
topic Neosporosis
RIFI
Serology
Sheep.
Neosporose
RIFI
Sorologia
Ovinos.
description Neospora caninum is a widely distributed parasite, which significantly impacts reproduction in ruminants. This study aimed to survey the seroprevalence and risk factors associated with neosporosis infection in commercial herds of sheep in the northwest of Rio Grande do Sul, Brazil. Three hundred sheep serum samples were used to investigate anti-N. caninum antibodies using indirect immunofluorescence reaction at a 1:40 dilution. The presence of anti-N. caninum antibodies was detected in 20.3% (61/300) of the samples evaluated; however, positive reactions were observed in all (13/13) flocks sampled. Sheep breeds > 1 year of age had 1.2-fold higher risk for infection with N. caninum (odds ratio 2.2 [95% confidence interval 1-5.1]; P < 0.001). These findings should raise awareness on the importance of serological screening, identification of risk factors, and maintenance of preventive measures, such as not allowing dogs to contact sheep feed and not offering the placental remains of ruminants to canids.
publishDate 2020
dc.date.none.fl_str_mv 2020-03-06
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36624
10.5433/1679-0359.2020v41n2p703
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36624
identifier_str_mv 10.5433/1679-0359.2020v41n2p703
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36624/26885
dc.rights.driver.fl_str_mv Copyright (c) 2020 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 41 No. 2 (2020); 703-710
Semina: Ciências Agrárias; v. 41 n. 2 (2020); 703-710
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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