Faculty of Veterinary and Livestock University Center, Autonomous University of the State of Mexico, Amecameca 56900, Mexico;
Department of Animal Production, Chapingo Autonomous University, Chapingo 56230, Mexico;
Department of Agriculture and Livestock, Metropolitan Autonomous University Xochimilco Unit, Mexico City 04960, Mexico;
Institute of Genetic and Productivity Livestock Center, Postgraduate Col ege, Montecil o 56230, Mexico;
Department of Agriculture and Livestock, Metropolitan Autonomous University Xochimilco Unit, Mexico City 04960, Mexico;
Department of Animal Production, Chapingo Autonomous University, Chapingo 56230, Mexico;
Department of Agriculture and Livestock, Metropolitan Autonomous University Xochimilco Unit, Mexico City 04960, Mexico;