Figure 3.

(A) Principl coordinates analysis (PCoA) of microbial composition in the cecal digesta of weaned piglets (based on the weighted_normalized_unifrac distance). (B) Analysis of hierarchical clustering tree on OTU level showed that the microbial composition of CON group had clearly distinct with the other two groups as they located distributed almost in another branches. CON, basal diet; AGP, basal diet + 20 mg/kg flavomycin + 50 mg/kg quinocetone; MB, basal diet + 50 mg/kg Macleaya cordata extract +1,000 mg/kg benzoic acid.