Fig. 3

Venn diagrams illustrating the overlap of OTUs in intestinal microbiota. a, b and c The overlap of OTUs in intestinal microbiota among three sub-stages of each diet groups (ZS, TS and HS). d, e The overlap of OTUs in intestinal microbiota among the six sub-stages (ZS2, ZS3, TS1, TS2, HS1 and HS2) of diet transition process