Effects of Dietary Bacillus subtilis BC02 Supplementation on Growth Performance, Antioxidant Capacity, and Cecal Microbes in Broilers

This study investigated the effects of Bacillus subtilis BC02 supplementation on broiler performance, antioxidant capacity, and cecal microbes. A total 288 one-day-old Arbor Acres broilers were randomly divided into three groups. The control group fed a basal diet, experimental groups diet supplemented with 250 500 mg/kg (BS250 BS500), respectively. results showed that increased average daily feed intake but decreased to gain ratio in from 0 14, 28, 42 days. Meanwhile, BS500 significantly triglyceride serum urea nitrogen levels compared BS250 (p < 0.05). Moreover, improved capacity by increasing jejunum superoxide dismutase glutathione, decreasing malondialdehyde mRNA expression SOD2, CAT, GPX1, Nrf2 Dietary villus height, velvet concealed ratio, expressions IL-2, IL-4, IL-10, IL-12 In addition, Bacteroidota, Proteobacteria, Helicobacter, Prevotellaceae UCG-001 0.05) group. conclusion, dietary can improve growth intestinal microflora abundances broilers.