Genetic aspects of common health disorders and measures of fertility in Holstein Friesian dairy cattle

accouplement bovin bovin laitier calving interval cattle copulation cows dairy cattle disorders fertilidad fertilite fertility ganado bovino ganado de leche genetic correlation genetic parameters health heifers heredabilidad heritability intervalle entre parturition intervalo entre partos lameness mammite mastitis milk yield movement disorders novilla parturient paresis parturition interval rendement laitier rendimiento lechero salud trastornos trouble trouble locomoteur vaca vache