Reparative potentials of commensal-derived cellular components in juvenile Lateolabrax maculatus fed high soybean meal diet: Insight into growth performance, immunity, antioxidant capacity and liver health

An eight-week feeding trial was designed to estimate the effects of commensal Bacillus siamensis LF4-derived whole cell wall (CW), cell wall protein (CWP), lipoteichoic acid (LTA) and peptidoglycan (PGN) supplementation in a high soybean meal (SM) diet on the growth, immunity and liver health of spotted seabass (Lateolabrax maculatus). Fish continuously fed low SM (containing 16 % SM) and high SM (containing 40 % SM) diets were served as positive (LSM) and negative (HSM) control, respectively. After feeding high SM diet for 28 days, fish were fortified with B. siamensis LF4-derived CW, CWP, LTA or PGN until 56 days. The results showed that CW, LTA, and PGN application significantly increased FBW, WGR, and SGR (P