Utilization of somatotropins in animal production

aliment pour animaux animal health aves de corral bovin breeding value calidad canal animal carcass composition carcasse carcasses carne cattle cerdo chemical composition composition chimique composition de la carcasse costos costs economic analysis feed conversion efficiency feeds food hygiene gain de poids ganado bovino ganancia de peso ganancias higiene de los alimentos lait leche meat meat yield milk milk yield ovin ovinos piensos porcin poultry precios prices prix profit quality rendement en viande rendement laitier rendimiento lechero sanidad animal sheep swine viande volaille weight gain