Cardoso, José Márcio S., et al. “Serological Profile of Colostral Antibodies to Neospora Caninum in Infection Free Calves”. Brazilian Journal of Veterinary Research and Animal Science, vol. 45, no. 5, Oct. 2008, pp. 379-84, https://doi.org/10.11606/issn.1678-4456.bjvras.2008.26679.