Fig. 4.
Comparison of autochthonous intestinal microbiota composition between fish fed different diets. (A) Principal component (PC) analysis; (B) Non-metric multidimensional scaling (NMDS) diagram. CK group: the basal diet; BS group: the basal diet with 1 × 108 CFU/g of Bacillus subtilis; BS + BC group: the basal diet with both 0.5 × 108 CFU/g of B. subtilis and Bacillus cereus NY5; BC group: the basal diet with 1 × 108 CFU/g of B. cereus NY5; BS-7D group: the BS group after cessation of probiotic consumption for 1 wk; BS + BC-7D group: the BS + BC group after cessation of probiotic consumption for 1 wk; BC-7D group: the BC group after cessation of probiotic consumption for 1 wk.