Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Veterinary Research and Animal Science |
Texto Completo: | https://www.revistas.usp.br/bjvras/article/view/40261 |
Resumo: | This study aimed at assessing the occurrence of antibodies against the caprine arthritis-encephalitis virus (CAEV), Toxoplasma gondii and Neospora caninum, as well as the associations between the presence of antibodies and the occurrence of reproductive failures in goats. Serum samples were collected from 923 goats of both sexes, over 3 months of age, from 17 dairy farms located in different municipalities of São Paulo State, Brazil. Infections by T. gondii, N. caninum and CAEV were evaluated by indirect methods of diagnosis based on indirect fluorescence antibody test (IFAT), Neospora agglutination test (NAT), and agar gel immunodiffusion (AGID), respectively. A survey was conducted on the farms to obtain information about reproduction dates (abortions, stillbirths and births of weak and premature kids) and zoosanitary management. Antibodies against CAEV, T. gondii and N. caninum was found in 37.81%, 23.62% and 17.23% respectively. There was no significant association between the presence of anti-CAEV antibodies and CAEV/T. gondii or CAEV/N. caninum co-infection, suggesting that CAEV does not predispose goats to infection by these agents. However, when CAEV/T. gondii (p<0.01) or CAEV/N. caninum (p<0.001) co-infection was present, the occurrence of reproductive failures was significantly higher what could indicate that CAEV-induced immunosuppression may predispose goats to develop the clinical symptoms of toxoplasmosis and neosporosis increasing the risks of the reproductive failures. |
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oai:revistas.usp.br:article/40261 |
network_acronym_str |
USP-49 |
network_name_str |
Brazilian Journal of Veterinary Research and Animal Science |
repository_id_str |
https://www.revistas.usp.br/bjvras/index |
spelling |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, BrazilFalhas reprodutivas associadas com a presença de do vírus da artrite-encefalite caprina, Toxoplasma gondii e Neospora caninum em caprinos no estado de São Paulo, BrasilCaprinoCAEVToxoplasma gondiiNeospora caninumFalhas reprodutivasGoatCAEVToxoplasma gondiiNeospora caninumCo-infectionReproductive failuresThis study aimed at assessing the occurrence of antibodies against the caprine arthritis-encephalitis virus (CAEV), Toxoplasma gondii and Neospora caninum, as well as the associations between the presence of antibodies and the occurrence of reproductive failures in goats. Serum samples were collected from 923 goats of both sexes, over 3 months of age, from 17 dairy farms located in different municipalities of São Paulo State, Brazil. Infections by T. gondii, N. caninum and CAEV were evaluated by indirect methods of diagnosis based on indirect fluorescence antibody test (IFAT), Neospora agglutination test (NAT), and agar gel immunodiffusion (AGID), respectively. A survey was conducted on the farms to obtain information about reproduction dates (abortions, stillbirths and births of weak and premature kids) and zoosanitary management. Antibodies against CAEV, T. gondii and N. caninum was found in 37.81%, 23.62% and 17.23% respectively. There was no significant association between the presence of anti-CAEV antibodies and CAEV/T. gondii or CAEV/N. caninum co-infection, suggesting that CAEV does not predispose goats to infection by these agents. However, when CAEV/T. gondii (p<0.01) or CAEV/N. caninum (p<0.001) co-infection was present, the occurrence of reproductive failures was significantly higher what could indicate that CAEV-induced immunosuppression may predispose goats to develop the clinical symptoms of toxoplasmosis and neosporosis increasing the risks of the reproductive failures.O objetivo do presente estudo foi avaliar a ocorrência de anticorpos para o vírus da atrite-encefalite caprina (CAEV), Toxoplasma gondii e Neospora caninum e de possíveis associações entre a presença de anticorpos e a ocorrência de problemas reprodutivos em caprinos. Para tanto, foram colhidas amostras sangüíneas de 923 caprinos de ambos os sexos, acima de três meses de idade e oriundos de 17 propriedades leiteiras, de diferentes municípios do estado de São Paulo, Brasil. Os diagnósticos para T. gondii, N. caninum e CAEV foram baseados, respectivamente, na reação de imunofluorescência indireta (RIFI), teste de aglutinação para Neospora (NAT) e a imunodifusão em gel de ágar (IDGA). Um inquérito epidemiológico foi aplicado nas propriedades para obtenção de informações sobre dados reprodutivos (abortamentos, natimortalidade e nascimentos de filhotes fracos e prematuros) e de manejo zoossanitário. As ocorrências de anticorpos foram de 37,81% para CAEV, de 23,62% para T. gondii e de 17,23% para N. caninum. Não houve associação significativa entre a presença de anticorpos anti-CAEV e co-infecção com T. gondii ou N. caninum, sugerindo que o CAEV não predispõe os caprinos à infecção por estes agentes. Entretanto, quando havia, nas fazendas, animais com co-infecção pelo CAEV e T. gondii (p<0,01) ou CAEV e N. caninum (p<0,001) as ocorrências de falhas reprodutivas foram significativamente maiores, sugerindo que a imunossupressão causada pelo CAEV pode predispor os caprinos ao desenvolvimento de sintomas clínicos da toxoplasmose e neosporose, potencializando os riscos da ocorrência de problemas reprodutivos causados por estas enfermidades.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2012-02-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/4026110.11606/issn.2318-3659.v49i1p67-72Brazilian Journal of Veterinary Research and Animal Science; Vol. 49 Núm. 1 (2012); 67-72Brazilian Journal of Veterinary Research and Animal Science; Vol. 49 No. 1 (2012); 67-72Brazilian Journal of Veterinary Research and Animal Science; v. 49 n. 1 (2012); 67-72Brazilian Journal of Veterinary Research and Animal Science; V. 49 N. 1 (2012); 67-721678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPenghttps://www.revistas.usp.br/bjvras/article/view/40261/43127Costa, Heni Falcão daStachissini, Anne Valéria MendonçaLangoni, HélioPadovani, Carlos RobertoGennari, Solange MariaModolo, José Rafaelinfo:eu-repo/semantics/openAccess2020-06-23T04:08:39Zoai:revistas.usp.br:article/40261Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:43:13.161467Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false |
dc.title.none.fl_str_mv |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil Falhas reprodutivas associadas com a presença de do vírus da artrite-encefalite caprina, Toxoplasma gondii e Neospora caninum em caprinos no estado de São Paulo, Brasil |
title |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil |
spellingShingle |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil Costa, Heni Falcão da Caprino CAEV Toxoplasma gondii Neospora caninum Falhas reprodutivas Goat CAEV Toxoplasma gondii Neospora caninum Co-infection Reproductive failures |
title_short |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil |
title_full |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil |
title_fullStr |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil |
title_full_unstemmed |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil |
title_sort |
Reproductive failures associated with antibodies against caprine arthritis-encephalitis virus, Toxoplasma gondii and Neospora caninum in goats in the state of Sao Paulo, Brazil |
author |
Costa, Heni Falcão da |
author_facet |
Costa, Heni Falcão da Stachissini, Anne Valéria Mendonça Langoni, Hélio Padovani, Carlos Roberto Gennari, Solange Maria Modolo, José Rafael |
author_role |
author |
author2 |
Stachissini, Anne Valéria Mendonça Langoni, Hélio Padovani, Carlos Roberto Gennari, Solange Maria Modolo, José Rafael |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Costa, Heni Falcão da Stachissini, Anne Valéria Mendonça Langoni, Hélio Padovani, Carlos Roberto Gennari, Solange Maria Modolo, José Rafael |
dc.subject.por.fl_str_mv |
Caprino CAEV Toxoplasma gondii Neospora caninum Falhas reprodutivas Goat CAEV Toxoplasma gondii Neospora caninum Co-infection Reproductive failures |
topic |
Caprino CAEV Toxoplasma gondii Neospora caninum Falhas reprodutivas Goat CAEV Toxoplasma gondii Neospora caninum Co-infection Reproductive failures |
description |
This study aimed at assessing the occurrence of antibodies against the caprine arthritis-encephalitis virus (CAEV), Toxoplasma gondii and Neospora caninum, as well as the associations between the presence of antibodies and the occurrence of reproductive failures in goats. Serum samples were collected from 923 goats of both sexes, over 3 months of age, from 17 dairy farms located in different municipalities of São Paulo State, Brazil. Infections by T. gondii, N. caninum and CAEV were evaluated by indirect methods of diagnosis based on indirect fluorescence antibody test (IFAT), Neospora agglutination test (NAT), and agar gel immunodiffusion (AGID), respectively. A survey was conducted on the farms to obtain information about reproduction dates (abortions, stillbirths and births of weak and premature kids) and zoosanitary management. Antibodies against CAEV, T. gondii and N. caninum was found in 37.81%, 23.62% and 17.23% respectively. There was no significant association between the presence of anti-CAEV antibodies and CAEV/T. gondii or CAEV/N. caninum co-infection, suggesting that CAEV does not predispose goats to infection by these agents. However, when CAEV/T. gondii (p<0.01) or CAEV/N. caninum (p<0.001) co-infection was present, the occurrence of reproductive failures was significantly higher what could indicate that CAEV-induced immunosuppression may predispose goats to develop the clinical symptoms of toxoplasmosis and neosporosis increasing the risks of the reproductive failures. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02-03 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/bjvras/article/view/40261 10.11606/issn.2318-3659.v49i1p67-72 |
url |
https://www.revistas.usp.br/bjvras/article/view/40261 |
identifier_str_mv |
10.11606/issn.2318-3659.v49i1p67-72 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/bjvras/article/view/40261/43127 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia |
dc.source.none.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science; Vol. 49 Núm. 1 (2012); 67-72 Brazilian Journal of Veterinary Research and Animal Science; Vol. 49 No. 1 (2012); 67-72 Brazilian Journal of Veterinary Research and Animal Science; v. 49 n. 1 (2012); 67-72 Brazilian Journal of Veterinary Research and Animal Science; V. 49 N. 1 (2012); 67-72 1678-4456 1413-9596 reponame:Brazilian Journal of Veterinary Research and Animal Science instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) instacron:USP |
instname_str |
Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Brazilian Journal of Veterinary Research and Animal Science |
collection |
Brazilian Journal of Veterinary Research and Animal Science |
repository.name.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP) |
repository.mail.fl_str_mv |
bjvras@usp.br |
_version_ |
1797051562183360512 |