Influence of β-glucanase supplementation on growth performance, nutrient digestibility, blood parameters, and meat quality in broilers fed wheat–barley–soybean diet

摘要

A total of 600 one-day-old male Ross 308 broiler chickens with an average body weight of 43.00?±?0.42?g were used in a 35?d growth assay to investigate the supplemental effects of three levels (600, 1200, and 1800 β-glucanase units?kg ?1 ) of β-glucanase on growth performance, nutrient digestibility, blood parameters, and meat quality in wheat–barley–soybean-meal-based broiler diet. During days 19–35 and overall period, chickens’ body weight gain and feed conversion ratio were significantly ( P ??0.05) the meat quality. In conclusion, broiler diets supplementation with increasing β-glucanase could improve the growth performance, enhance the digestibility, and modulate the concentrations of BUN linearly. Meat quality was not influenced.