Comparison of the bacterial structure of the cecal digesta by advanced analysis. (A) Principal component analysis plots of the cecal digesta of the group treated with basal diet plus intraperitoneal administration of sterile saline (C), basal diet plus intraperitoneal administration of LPS (CL), basal diet plus 1 g/kg of B. subtilis–fermented products in combination with intraperitoneal administration of LPS (LL), and basal diet plus 3 g/kg of B. subtilis–fermented products in combination with intraperitoneal administration of LPS (HL) (n = 3). Principal coordinates analysis of (B) unweighted UniFrac and (C) weighted UniFrac distance of the cecal bacterial communities from C, CL, LL, and HL (n = 3). The beta diversity index of the cecal digesta from C, CL, LL, and HL based on (D) unweighted UniFrac and (E) weighted UniFrac metrics (n = 3). Abbreviation: LPS, lipopolysaccharide.