Fig. 3

Density of bacterial colony affected the diversity and composition of the fecal bacterial communities. Shannon (a), faith pd (b), observed OTUs (c), and evenness index (d) in the low-, moderate-, and high-density groups and uncultured feces. e PCoA based on bray–curtis distance of the fecal cultured communities in the low-, moderate-, and high-density group and uncultured feces. f STAMP analysis indicated the genera that were significantly different between the low-, moderate-, and high-density groups