2 1 1 1 1 Pérez Nelson , Orjuela Oscar , Carvajal Christian , Moreno Jorge Mario , Castañeda-Serrano Román David 1 Investigator M.Sc, Corporación Colombiana de Investigación Agropecuaria AGROSAVIA, CI Nataima. El Espinal, Colombia; 2 1 Professional support for research. AGROSAVIA. CI Nataima. El Espinal, Colombia; Teacher PhD, Faculty of veterinary medicine and zootechnics - University Tolima.