Occurrence of antibodies anti-Neospora spp. in cart horses and Crioula breed horses from Rio Grande do Sul State.

The article investigates the occurrence of anti-Neospora spp. antibodies in cart horses and Crioula breed horses from Rio Grande do Sul, Brazil. Results of the study revealed that the frequency of anti-Neospora spp. antibodies in cart horses was 15% and in Crioula was 16.3% with no significant differences in antibodies frequency between the horses. The seropositivity suggests transplacental and ingestion of sporulated oocysts as routes of infection in the horses