Fig. 1

Cecal microbial community of broiler chickens fed experimental diets. a-b Dietary effects of bambermycin and sophorolipid on species richness indexes (ACE and Chao1); c-d Dietary effects of bambermycin and sophorolipid on diversity indexes (Shannon and Simpson); e Principal component Analysis ordination plots of microbial communities in the CON, BAM, and SPL groups based on the Jensen-Shannon distance metric. *P < 0.05 compared with CON group. Treatment groups: CON, control group fed with basal diet; BAM, group fed with 10 mg/kg of bambermycin supplemented diet; SPL, group fed with 10 mg/kg of sophorolipid-supplemented diet