Fig. 7

Differential rectum microbiota diversity, structure and composition between young (6-month-old, n = 20) and adult (19-month-old, n = 16) goats. A Concentrations of SCFA between young and adult goats. Significant differences were tested by t-test. B The Chao1 and Shannon indexes of rectum microbiota between young and adult goats. C Principal Coordinate Analysis (PCoA) of recutm microbiota at the ASV level based on the Bray-Curtis dissimilarity. The 15 most abundance bacterial family (D) and 50 most abundant bacterial genera (E). The differences in data in (B), (D), and (E) were assessed by the Wilcon rank-sum test. The bars represent SEM. ^*P < 0.05, ^**P < 0.01