Comparing two levels of different growth promoters in feed mixtures for growing pigs in relation to their uniform level in feed mixtures for early weaned piglets

agricultural chemicals aliment pour animaux alimentation alimentos concentrados alimentos para animales animal animal domestique animal pour cuirs et peaux animales animales de carne animals artiodactyla artiodactyle augmentation de rendement aumento del rendimiento biological development biometria biometrie biometry breeding breeding aims cerdo chemicophysical properties concentrates crecimiento croissance dimension dimensions domestic animals feeding feeds fisiologia fonction physiologique gain de poids ganado ganancia de peso growth jeune animal livestock mammals measurement meat animals mesure methode methods nutrition objetivo de mejoramiento peso physiological functions physiologie physiology piglets poids porcelet porcin produit agrochimique promoteur de croissance swine vertebrados vertebrates vertebre weight weight gain young animals