lsea, W., & Olson, T. A. (2010). Breed effects of cow’s sire and service sire on reproduction of crossbred dams and preweaning performance of their calves. Revista Científica De La Facultad De Ciencias Veterinarias, 8(1). Recuperado a partir de https://produccioncientifica.luz.edu.ve/index.php/cientifica/article/view/14308