Effects of dietary nisin supplementation on the growth performance, serum biochemistry, digestive enzyme activities, intestinal morphology, and intestinal microbiota in rabbits

Collectively, these findings highlight that NI supplementation enhances digestive efficiency, augments systemic antioxidant defenses, fortifies intestinal barrier function, and modulates microbial ecology and SCFA production, there by promoting growth and metabolic health in rabbits. Nisin, especially at 800 mg/kg, demonstrates significant potential as an antibiotic alternative.