Effect of commercial bile acid and bovine bile extract supplementation on the growth performance, carcass traits, nutrient digestibility, serum lipid profile, meat quality, and economic aspect in broilers fed a high-oil diet

This experiment was conducted to evaluate the effects of commercial bile acid (CBA) and bovine bile extract (BBE) in high-oil broiler feed on the growth performance, carcass traits, nutrient digestibility, serum lipid profile, meat quality, and income over feed and chick cost (IOFCC) of broilers. A total of 240 one-day-old Cobb broilers were divided into eight treatments with six replicates of five birds each. This experiment used eight diets: a basal diet with 3% crude palm oil (CPO), a high-oil diet with 8% CPO, and three variations of the high-oil diet supplemented with different levels of CBA and BBE (200, 400, and 600 mg/kg). Dietary supplementation with 600 mg/kg BBE increased growth performance on day 32 (P < 0.05). No significant differences in carcass percentage was found between treatments. However, birds fed the high-oil diet (8% CPO) had a higher percentage of abdominal and gizzard fat than those fed other diets (P < 0.05). Dietary supplementation with CBA and BBE increased fat digestibility. Supplementation with 600 mg/kg BBE positively affected meat quality by increasing crude protein and decreasing ether extract content (P < 0.05). These results suggest that BBE supplementation could be improved performance, carcass traits, fat digestibility, meat quality, and IOFCC of broiler chickens.