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
Braz. j. vet. res. anim. sci
;
49(1): 67-72, 2012. tab
Artículo
en Inglés
| LILACS
| ID: lil-687572
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.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Reproducción
/
Cabras
/
Anticuerpos
Tipo de estudio:
Factores de riesgo
Límite:
Animales
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Braz. j. vet. res. anim. sci
Asunto de la revista:
Medicina Veterinaria
Año:
2012
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Faculty of Veterinary Medicine and Animal Science/BR
/
São Paulo State University/BR
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