the effect of energo – proteic level on crude protein conversion at arbor acres hybrid

The present researches in broiler industry has been intensified in direction to obtained broiler chickens with a superior quality of carcass express through a big weight of value comercial cut-ups, like proportion with a small set-down of abdominal fat what represent a slaughtery loss. Permanent transformation of genetic potencial of broiler chickens impose continuous reevaluation of energy, protein, amino acids, trace minerals and vitamins requirements function of growth phases and sacrification age.