Laura Garcia Celis, Jehieli Girela alvarez, Beatriz Arellano-Reynoso, Victor Tenorio Gutierrez, Francisco Aguilar Romero, Pedro Mejia Sanchez, Francisco Suarez-Guemes and Efren Diaz-Aparicio
Journal of Animal and Veterinary Advances 6 ( 5 ): 681 - 685 , 2007