Use of blood physiological traits and growth rate for early evaluation of the breeding value of dairy cattle

alanina aminotransferasa alanine aminotransferase blood composition blood physiology bovin laitier breeding value composition du sang dairy cattle ensayo ganado de leche glucosa glucose growth rate haematocrit haemoglobin heifers hematocrito hemoglobina immunoglobuline immunoglobulins inmunoglobulina milk yield novilla physiologie sanguine rendement laitier rendimiento lechero taux de croissance testage testing