Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows

Detalhes bibliográficos
Autor(a) principal: Frigotto, Tiago Andre
Data de Publicação: 2018
Outros Autores: Genz, Thiago Alexandre Simon, Nino, Beatriz de Souza Lima, Zulpo, Dauton Luiz, Garcia, João Luis
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/31800
Resumo: Neospora caninum is an important cause of abortions in dairy cattle, leading to severe economic losses. The objective of this study was to determine the association of serum antibodies against N. caninum with a history of abortion in dairy cows. A total of 46 dairy cows from nine dairy farms were evaluated; 28 with a history of one or more abortions and 18 without a history of abortions. Antibodies against N. caninum were detected by indirect immunofluorescence, and the reaction was considered positive when the titer was ?1:50. Serum antibodies against N. caninum were detected in 39.1% (18/46) of all cows, 57.1% (16/28) of cows with a history of abortion, and 11.1% (2/18) of cows without a history of abortion. Among the seropositive cows, 88.9% had a history of abortion. All farms showed at least one animal positive for N. caninum. These results indicate an association between seropositivity for N. caninum and a history of abortion in cows. Cows with a history of abortion were 10.6 times more likely to be seropositive for N. caninum than cows without a history of abortion. Therefore, we concluded that there is an association between a history of abortion and the presence of antibodies against N. caninum in dairy cows.
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spelling Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cowsAssociação do histórico de abortamento com a presença de anticorpos anti-Neospora caninum em vacas leiteirasNeosporosisBovinePregnancyAbortion.NeosporoseBovinosPrenhezAborto.Neospora caninum is an important cause of abortions in dairy cattle, leading to severe economic losses. The objective of this study was to determine the association of serum antibodies against N. caninum with a history of abortion in dairy cows. A total of 46 dairy cows from nine dairy farms were evaluated; 28 with a history of one or more abortions and 18 without a history of abortions. Antibodies against N. caninum were detected by indirect immunofluorescence, and the reaction was considered positive when the titer was ?1:50. Serum antibodies against N. caninum were detected in 39.1% (18/46) of all cows, 57.1% (16/28) of cows with a history of abortion, and 11.1% (2/18) of cows without a history of abortion. Among the seropositive cows, 88.9% had a history of abortion. All farms showed at least one animal positive for N. caninum. These results indicate an association between seropositivity for N. caninum and a history of abortion in cows. Cows with a history of abortion were 10.6 times more likely to be seropositive for N. caninum than cows without a history of abortion. Therefore, we concluded that there is an association between a history of abortion and the presence of antibodies against N. caninum in dairy cows.O Neospora caninum é um importante agente causador de abortos em bovinos leiteiros, promovendo severos prejuízos econômicos. Objetivou-se neste trabalho associar a presença de anticorpos contra N. caninum com histórico de abortamento em vacas leiteiras. Um total de 46 vacas leiteiras foram avaliadas, sendo 28 com histórico de um ou mais abortamentos e 18 sem histórico de abortamentos, provenientes de nove propriedades leiteiras. Para a detecção de anticorpos contra N. caninum foi realizada a reação de imunofluorescência indireta, sendo consideradas positivas quando os títulos foram maiores ou iguais a 1:50. A soro ocorrência de anticorpos contra N. caninum entre todas as vacas avaliadas foi de 39,1% (18/46), entre as vacas com histórico de abortamento foi de 57,1% (16/28) e de 11,1% (2/18) nas vacas que não haviam abortado. Dentre as vacas soropositivas, 88,9% possuíam histórico de aborto. Todas as propriedades avaliadas apresentaram animais com anticorpos contra o N. caninum. Há uma associação entre vacas soropositivas para N. caninum e histórico de abortamento. Vacas soropositivas apresentaram 10,6 vezes mais chances de serem sororreagentes ao Neospora caninum do que vacas sem histórico de abortamento. Conclui-se que existe associação entre histórico de abortamento e presença de anticorpos contra Neospora caninum em vacas leiteiras.UEL2018-11-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPrevalência/ocorrênciaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3180010.5433/1679-0359.2018v39n6p2443Semina: Ciências Agrárias; Vol. 39 No. 6 (2018); 2443-2448Semina: Ciências Agrárias; v. 39 n. 6 (2018); 2443-24481679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31800/24612Copyright (c) 2018 Semina: Ciências Agráriasinfo:eu-repo/semantics/openAccessFrigotto, Tiago AndreGenz, Thiago Alexandre SimonNino, Beatriz de Souza LimaZulpo, Dauton LuizGarcia, João Luis2019-07-03T16:48:48Zoai:ojs.pkp.sfu.ca:article/31800Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2019-07-03T16:48:48Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
Associação do histórico de abortamento com a presença de anticorpos anti-Neospora caninum em vacas leiteiras
title Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
spellingShingle Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
Frigotto, Tiago Andre
Neosporosis
Bovine
Pregnancy
Abortion.
Neosporose
Bovinos
Prenhez
Aborto.
title_short Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
title_full Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
title_fullStr Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
title_full_unstemmed Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
title_sort Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
author Frigotto, Tiago Andre
author_facet Frigotto, Tiago Andre
Genz, Thiago Alexandre Simon
Nino, Beatriz de Souza Lima
Zulpo, Dauton Luiz
Garcia, João Luis
author_role author
author2 Genz, Thiago Alexandre Simon
Nino, Beatriz de Souza Lima
Zulpo, Dauton Luiz
Garcia, João Luis
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Frigotto, Tiago Andre
Genz, Thiago Alexandre Simon
Nino, Beatriz de Souza Lima
Zulpo, Dauton Luiz
Garcia, João Luis
dc.subject.por.fl_str_mv Neosporosis
Bovine
Pregnancy
Abortion.
Neosporose
Bovinos
Prenhez
Aborto.
topic Neosporosis
Bovine
Pregnancy
Abortion.
Neosporose
Bovinos
Prenhez
Aborto.
description Neospora caninum is an important cause of abortions in dairy cattle, leading to severe economic losses. The objective of this study was to determine the association of serum antibodies against N. caninum with a history of abortion in dairy cows. A total of 46 dairy cows from nine dairy farms were evaluated; 28 with a history of one or more abortions and 18 without a history of abortions. Antibodies against N. caninum were detected by indirect immunofluorescence, and the reaction was considered positive when the titer was ?1:50. Serum antibodies against N. caninum were detected in 39.1% (18/46) of all cows, 57.1% (16/28) of cows with a history of abortion, and 11.1% (2/18) of cows without a history of abortion. Among the seropositive cows, 88.9% had a history of abortion. All farms showed at least one animal positive for N. caninum. These results indicate an association between seropositivity for N. caninum and a history of abortion in cows. Cows with a history of abortion were 10.6 times more likely to be seropositive for N. caninum than cows without a history of abortion. Therefore, we concluded that there is an association between a history of abortion and the presence of antibodies against N. caninum in dairy cows.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Prevalência/ocorrência
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31800
10.5433/1679-0359.2018v39n6p2443
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31800
identifier_str_mv 10.5433/1679-0359.2018v39n6p2443
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/31800/24612
dc.rights.driver.fl_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
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. 39 No. 6 (2018); 2443-2448
Semina: Ciências Agrárias; v. 39 n. 6 (2018); 2443-2448
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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