Figure 5.

Summary of microbial community in cecal contents of broilers on day 56. (A) Venn diagram (B) UPGMA cluster tree. (C) Principal component analysis. (D) Shannon index. (E–G) The top 10 taxa by relative abundance (E: phylum; F: genus; G: species). (H–L) Species with significant inter-group differences (H: phylum; I: genus; J, K, L: species). Broiler basal diet supplementation: NCO, none; ANT, 30 mg/kg bacitracin; RLS1, 500 mg/kg rhamnolipids; and RLS2, 1,000 mg/kg rhamnolipids. OTU, operational taxonomic unit. Broilers were regarded as the experimental units, n = 6 per treatment. Significant differences: ∗ at P < 0.05, ∗∗ at P < 0.01. Abbreviation: UPGMA, unweighted pair group method with arithmetic mean