Effect of corn substitution with different levels of barley and crumbling process on the performance of ASA broiler

age alimentation des animaux alimentos concentrados animal feeding barley broiler chickens calidad cebada concentrates crecimiento crianza en cama profunda croissance deep litter husbandry diet dieta economic viability edad engorde engraissement fattening feed conversion efficiency feed intake feed processing gain de poids ganancia de peso growth mass rearing nutritive value orge peso poids pollo de engorde poulet de chair prise alimentaire (animaux) quality ration rations traitement d'aliments pour animaux unrestricted feeding valeur nutritive valor nutritivo weight weight gain zea mays