Toxoplasma gondii and Neospora caninum infections and factors associated in goats in the Parana state, Southern Brazil

Infecções por Toxoplasma gondii e Neospora caninum e fatores associados em caprinos no estado do Paraná, Sul do Brasil

Paulo Roberto Romanelli Andressa Maria Rorato Nascimento de Matos Fernanda Pinto-Ferreira Eloiza Teles Caldart Juliana Silva de Oliveira Gabriela Anteveli Brenda Caroline dos Santos Jeanfelice Rafael Luiz Stolf Tainá Favoreto Sanches Mariana Kassab e Silva Alessandro Pelegrine Minho Antônio Cezar Rocha Cavalcante Roberta Lemos Freire Regina Mitsuka-Breganó Italmar Teodorico Navarro About the authors

Abstract

The aim of this study was to determine the occurrence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies and their associated factors among goats in farms from the Paraná state, South Brazil. The serological analysis was performed by indirect ELISA on 629 goat serum samples collected from 32 farms distributed in five mesorregions from the state. Seropositivity was observed in 30.7% of the animals for T. gondii, 6.3% for N. caninum, and 3.0% for both agents. Final multiple regression models showed that the use of assisted reproduction decreased the chance of seropositivity for T. gondii (PR=0.70) and the slaughtering site on the farm (PR=2.03) increased it. To N. caninum, the supplying concentrated feed to animals (OR=4.80) and animal pre-weaning death (OR=9.96) increased the chance of seropositivity. The variables associated with these seropositivities suggest deficiencies in sanitation and reproductive management. In addition, it recognizes critical points of infection for animal production management.

Keywords:
Seroprevalence; Toxoplasma gondii; Neospora caninum; goats; Brazil

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