Seroprevalence and risk factors associated with Neospora caninum in commercial sheep from northwest of Rio Grande do Sul, Brazil.

Neospora caninum is a widely distributed parasite, which significantly impacts reproduction in ruminants. This study aimed to survey the seroprevalence and risk factors associated with neosporosis infection in commercial herds of sheep in the northwest of Rio Grande do Sul, Brazil. Three hundred sheep serum samples were used to investigate anti-N. caninum antibodies using indirect immunofluorescence reaction at a 1:40 dilution. The presence of anti-N. caninum antibodies was detected in 20.3% (61/300) of the samples evaluated; however, positive reactions were observed in all (13/13) flocks sampled. Sheep breeds > 1 year of age had 1.2-fold higher risk for infection with N. caninum (odds ratio 2.2 [95% confidence interval 1-5.1]; P < 0.001). These findings should raise awareness on the importance of serological screening, identification of risk factors, and maintenance of preventive measures, such as not allowing dogs to contact sheep feed and not offering the placental remains of ruminants to canids.

Bibliographic Details

Main Authors:	CONSALTER, A., SILVA, A. P. da, GAIA, V. G., ZANELLA, E. L., SOUZA, G. N. de, FERREIRA, A. M. R.
Other Authors:	ANGÉLICA CONSALTER, Universidade Federal Fluminense; ANDRESSA FERREIRA DA SILVA, Universidade Federal Rural do Rio de Janeiro; VINICIUS GRANGEIA GAIA, Universidade Federal Rural do Rio de Janeiro; ERALDO LOURENSO ZANELLA, Universidade de Passo Fundo; GUILHERME NUNES DE SOUZA, CNPGL; ANA MARIA REIS FERREIRA, Universidade Federal Fluminense.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2021-08-17
Subjects:	RIFI, Sorologia, Ovino, Neosporose, Neosporosis, Serology, Sheep,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133647 http://doi.org/10.5433/1679-0359.2020v41n2p703
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