Fig. 2From: Effects of dietary supplementation of probiotic Enterococcus faecium on growth performance and gut microbiota in weaned pigletsAlpha diversity indices of fecal bacterial communities of weaned piglets on day 14 in different groups. A–E Observed species, chao 1, ace, simpson, and shannon, respectively. a,bSmall letter superscript represents significant difference (P < 0.05). Data were statistically analyzed by one-way ANOVA, followed by Duncan’s multiple-range testBack to article page