[Protein reduction with and without supplemental lysine, treonine and methionine fed to pigs]

aliment pour animaux carcass composition cerdo chemical composition composition chimique composition de la carcasse contenido proteico danemark denmark dinamarca feed intake feeds gain de poids ganancia de peso lisina lysine methionine metionina piensos porcin prise alimentaire (animaux) protein content swine threonine treonina weight gain