Velásquez Vélez, Raul, Ricardo R Noguera, Sandra L Posada, Alvaro Hoyos Velásquez, and Juan Manuel Cerón. “Estimation of Growth in Intact Grazing Holstein Steers”. Revista Colombiana de Ciencias Pecuarias 26, no. 3 (September 25, 2013): 169–176. Accessed November 27, 2021. https://revistas.udea.edu.co/index.php/rccp/article/view/324826.