[Self recruiting meat production in cattle. Pt. 1 - What is influencing the profitability?]

age alimentation aptitud lechera beef cattle body condition body weight bovin de boucherie calves costos costs cows edad feed grasses feed intake feeding ganado de carne ganancias growth rate heifers meat production milk performance noruega norway novilla peso corporal poids corporel prise alimentaire (animaux) production de viande profit taux de croissance ternero vaca vache veau