Boschini-Figueroa, C. and Elizondo-Salazar, J.A. 2005. Energetic and proteic characterization of prime sources of animal origin used in the formulation of a balanced feed for dairy cattle. Agronomía Mesoamericana. 16, 2 (Sep. 2005), 191–198. DOI:https://doi.org/10.15517/am.v16i2.11872.