[Influence of the nutrition, weaning, infusion with glucose and insulin injections on blood chemistry and the luteinising hormone in anestrous cows after the delivery]

analyse statistique blood blood composition blood sampling blood sugar ciclo estral composition du sang cows cycle oestral densidad density destete evaluation glucosa glucose in vivo experimentation insulin insulina insuline lh oestrous cycle overeating puerperio puerperium sang sangre sevrage statistical analysis sucre du sang surconsommation alimentaire vaca vache weaning