Marisela Leal-Hernandez, Enrique Salas Tellez, Alma Nunez Del Arco, Rodolfo A. Ugalde, Victor R. Tenorio-Gutierrez, Rigoberto Hernandez-Castro, Francisco Suarez Guemes and Efren Diaz-Aparicio
Journal of Animal and Veterinary Advances 8 ( 5 ): 928 - 934 , 2009