Echeverri Zuluaga, José JuliánSalazar Restrepo, Victoria EugeniaMúnera Múnera, Diego2012-06-082012-06-0820061794-4449http://hdl.handle.net/10567/437In this work, the author analyzes some strategies of genetic improvement used to increase the profitability of dairy herds, concluding that it is not easier to determine which one is better, but that it is also important to remark that the best results in crossings are obtained when the pure parental individuals are the product of a strict selection program.esMejoramiento genéticoCorporación Universitaria LasallistaGanado lechero - Mejoramiento de la especieGanado lecheroGanado lechero - Cría y desarrolloGanado - GenéticaGanado lechero - ReproducciónArticle