Martínez Marín, A. L.; Pérez Hernández, M.; Pérez Alba, L. M.; Carrión Pardo, D.; Garzón Sigler, A. I.; Gómez Castro, G. Fat Addition in the Diet of Dairy Ruminants and Its Effects on Productive Parameters. Rev. colomb. cienc. pecu. 2013, 26, 69-78.