[Seminar on growth promotors and beta-agonists for pigs]

additif aux aliments des animaux aditivos de piensos animal growth promoters carne de cerdo cerdo control de calidad economic situation ethics etica feed additives food inspection gain de poids ganancia de peso hormonas pituitarias hormone hypophysaire inspection des aliments pituitary hormones porcin pork promoteur de croissance animale promotores del crecimiento animal swine viande porcine weight gain