Cobalt requirement of beef cattle - feed intake and growth at different levels of cobalt supply

beef cattle besoin nutritionnel bovin de boucherie bulls carcass composition cobalt cobalto composition de la carcasse crecimiento croissance engorde engraissement evaluation fattening feed intake gain de poids ganado de carne ganancia de peso growth necesidades de nutrientes nutritional requirements prise alimentaire (animaux) statistical methods taureau toro weight gain