Fig. 8

Changes of microbial community composition in the cecum of broilers. A Distribution of cecal microbiota at the phylum level. B Heatmap of species relative abundance of cecal microbiota at the phylum level. C The ratio of Bacteroidetes and Firmicutes was calculated. D Distribution of cecal microbiota at the genus level. E Heatmap of species relative abundance of cecal microbiota at the genus level. F–J The top 5 dominant genera with significant differences among all groups. Data are expressed as the mean ± SEM (n = 6). ^*P < 0.05, ^**P < 0.01, ^***P < 0.001