Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Parasitologia Veterinária (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612010000200010 |
Resumo: | Neospora caninum is an obligate intracellular parasite that can infect domestic and wild canids, ruminants, and horses. The purpose of this study was to evaluate the association between the presence of antibodies to N. caninum and reproductive loss in beef heifers in the South Pantanal region of Mato Grosso, Brazil. A total of 1098 heifers were evaluated from breeding to calving with regard to reproductive performance, and serology for neosporosis was assayed by indirect immunofluorescence reaction. The prevalence of N. caninum in cows that had failed to conceive was 22.13% higher than in those that had conceived (p < 0.0001), indicating a significant correlation between non-conception and presence of anti-N. caninum antibodies. The extraction rates for seropositive and seronegative heifers were 28.24 and 50.12%, respectively, with a statistically significant value (p < 0.0001) that showed a decrease of 44% in the extraction rate of seropositive animals. The results emphasize the importance of diagnosis for monitoring of neosporosis in primiparous cows, and indicators of seropositive females as a factor in strategies for culling the beef cattle herd. |
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Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, BrazilReproductionbovinediagnosticabortionNeospora caninumNeospora caninum is an obligate intracellular parasite that can infect domestic and wild canids, ruminants, and horses. The purpose of this study was to evaluate the association between the presence of antibodies to N. caninum and reproductive loss in beef heifers in the South Pantanal region of Mato Grosso, Brazil. A total of 1098 heifers were evaluated from breeding to calving with regard to reproductive performance, and serology for neosporosis was assayed by indirect immunofluorescence reaction. The prevalence of N. caninum in cows that had failed to conceive was 22.13% higher than in those that had conceived (p < 0.0001), indicating a significant correlation between non-conception and presence of anti-N. caninum antibodies. The extraction rates for seropositive and seronegative heifers were 28.24 and 50.12%, respectively, with a statistically significant value (p < 0.0001) that showed a decrease of 44% in the extraction rate of seropositive animals. The results emphasize the importance of diagnosis for monitoring of neosporosis in primiparous cows, and indicators of seropositive females as a factor in strategies for culling the beef cattle herd.Colégio Brasileiro de Parasitologia Veterinária2010-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612010000200010Revista Brasileira de Parasitologia Veterinária v.19 n.2 2010reponame:Revista Brasileira de Parasitologia Veterinária (Online)instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV)instacron:CBPV10.4322/rbpv.01902010info:eu-repo/semantics/openAccessAndreotti,RenatoBarros,Jacqueline CavalcantePereira,Anselmo RanierOshiro,Leandra MarlaCunha,Rodrigo CasqueroFigueiredo Neto,Leonardo Franciscoeng2010-09-09T00:00:00Zoai:scielo:S1984-29612010000200010Revistahttp://www.scielo.br/scielo.php?script=sci_serial&lng=pt&pid=1984-2961https://old.scielo.br/oai/scielo-oai.php||zacariascbpv@fcav.unesp.br1984-29610103-846Xopendoar:2010-09-09T00:00Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV)false |
dc.title.none.fl_str_mv |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
title |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
spellingShingle |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil Andreotti,Renato Reproduction bovine diagnostic abortion Neospora caninum |
title_short |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
title_full |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
title_fullStr |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
title_full_unstemmed |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
title_sort |
Association between seropositivity for Neospora caninum and reproductive performance of beef heifers in the Pantanal of Mato Grosso do Sul, Brazil |
author |
Andreotti,Renato |
author_facet |
Andreotti,Renato Barros,Jacqueline Cavalcante Pereira,Anselmo Ranier Oshiro,Leandra Marla Cunha,Rodrigo Casquero Figueiredo Neto,Leonardo Francisco |
author_role |
author |
author2 |
Barros,Jacqueline Cavalcante Pereira,Anselmo Ranier Oshiro,Leandra Marla Cunha,Rodrigo Casquero Figueiredo Neto,Leonardo Francisco |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Andreotti,Renato Barros,Jacqueline Cavalcante Pereira,Anselmo Ranier Oshiro,Leandra Marla Cunha,Rodrigo Casquero Figueiredo Neto,Leonardo Francisco |
dc.subject.por.fl_str_mv |
Reproduction bovine diagnostic abortion Neospora caninum |
topic |
Reproduction bovine diagnostic abortion Neospora caninum |
description |
Neospora caninum is an obligate intracellular parasite that can infect domestic and wild canids, ruminants, and horses. The purpose of this study was to evaluate the association between the presence of antibodies to N. caninum and reproductive loss in beef heifers in the South Pantanal region of Mato Grosso, Brazil. A total of 1098 heifers were evaluated from breeding to calving with regard to reproductive performance, and serology for neosporosis was assayed by indirect immunofluorescence reaction. The prevalence of N. caninum in cows that had failed to conceive was 22.13% higher than in those that had conceived (p < 0.0001), indicating a significant correlation between non-conception and presence of anti-N. caninum antibodies. The extraction rates for seropositive and seronegative heifers were 28.24 and 50.12%, respectively, with a statistically significant value (p < 0.0001) that showed a decrease of 44% in the extraction rate of seropositive animals. The results emphasize the importance of diagnosis for monitoring of neosporosis in primiparous cows, and indicators of seropositive females as a factor in strategies for culling the beef cattle herd. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612010000200010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612010000200010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.4322/rbpv.01902010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
dc.source.none.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária v.19 n.2 2010 reponame:Revista Brasileira de Parasitologia Veterinária (Online) instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV) instacron:CBPV |
instname_str |
Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
instacron_str |
CBPV |
institution |
CBPV |
reponame_str |
Revista Brasileira de Parasitologia Veterinária (Online) |
collection |
Revista Brasileira de Parasitologia Veterinária (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
repository.mail.fl_str_mv |
||zacariascbpv@fcav.unesp.br |
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1754208913627021312 |