Effects of Early Dietary Energy and Protein Dilution on Growth Performance, Nutrient Utilization and Internal Organs of Broilers

This experiment aimed to investigate the effects of early dietary energy and protein dilution on growth performance, nutrient utilization and internal organs of broilers. Of Arbor Acres, 1200 day-old male chicks were selected and randomly distributed to 16 experimental groups with factorial arrangement (4×4) including 4 levels of energy dilution and 4 of protein dilution (8 to 14 d of age). Birds were fed the same diets during the other period. Experiment of nutrient utilization was carried out 11 to 14 d of age. At 14 d, 1 bird/pen was slaughtered to determine internal organs. From 8 to 14 d, average daily feed intake (ADFI) of treatments protein diluted 10% was significantly less than of treatments protein diluted 20% (P