Fig. 4

GBE does not alter ileal microbial diversity and composition of FHLS laying hens. A Alpha diversity of ileal microbiota in different groups. Data were analyzed by nonparametric Kruskal–Wallis test. B Principal coordinate analysis (PCoA) of ileal microbiota in different groups. PCoA plots were generated using OUT abundance data according to the Bray–Curtis distance, and statistical significance was measured using adonis analysis. C Relative abundance of top 20 genera in each sample. n = 10 hens per group