Fig. 6

Effects of β-glucan on the gut microbiota in NEC mice. a The sparse curve is based on the OTU level of the bacterial community. b Overlapping and shared OTU levels in the three groups suggested by the Venn plot. c–f The α-diversity of gut microbiota was determined using Chao, Ace, Shannon, and Simpson indices. Data are expressed as the mean ± SD. n = 7. g Unweighted UniFrac-based principal coordinate analysis (PCoA) based on the OTU levels. n = 7. h Circos plots graphically shows the proportion of each species in each group at the phylum level