Association of abortion history with the presence of anti-Neospora caninum antibodies in dairy cows
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
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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Semina. Ciências Agrárias (Online) |
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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 |
_version_ |
1799306079153160192 |