Fig. 3

Alpha diversity analysis of different treatments at 10,000 reads depth per sample of cecal contents of broilers from d 42 post-hatch. a Observed OTUs b Shannon Index. Data represent mean ± SE. Statistical analyses were performed using Kruskal–Wallis test. Only the lowest p-value is shown. Xyl, xylanase; Xyloligo, xylooligosaccharides. Xyl_0: xylanase 0 BXU/kg feed, xyl_8,000BXU: xylanase 8,000 BXU/kg feed, xyl_16,000BXU: xylanase 16,000 BXU/kg feed, xylooligo_0: xylooligosacharides 0 g/t feed, xylooligo_50: xylooligosaccharides 50 g/t feed, and xylooligo_100: xylooligosaccharides 100 g/t feed