V.M. Riojas-Valdes, C.S. Gonzalez-Hernandez, G. Hernandez-Vidal, J.J. Hernandez-Escareno, R. Avalos-Ramirez, J.J. Zarate-Ramos, J.A. Salinas-Melendez, Prevalence of Antibodies Against of Neospora caninum in Dairy Cattle in Nuevo Leon, Mexico, Journal of Animal and Veterinary Advances, Volume 10,Issue 11, 2011, Pages 1389-1393, ISSN 1680-5593, javaa.2011.1389.1393, (https://makhillpublications.co/view-article.php?doi=javaa.2011.1389.1393) Abstract: The goal of the present epidemiological research was the detection of anti-Neospora caninum antibodies in order to determine the presence and prevalence of neosporosis in dairy cattle herds at 8 counties from the state of Nuevo Leon, Mexico. A total of 33 herds and 371 animals were included. Detection of Neospora caninum was performed using a commercial kit observed prevalence was 45%. This result allowed the conclusion that animals which are seropositive for the protozoan Neospora caninum do exist in Nuevo Leon. Serological evidence was found in animals at milk-production stage indicating that the presence of emerging diseases in the region is a fact therefore, sanitary measurements should be re-evaluated or reinforced in order to keep the cattle free from pathogens that have a negative impact in the production of food from animal origin used for the human consumption. Keywords: region;animal;Nuevo Leon;dairy cattle;Neosporosis;milk production;Mexico