Fig. 4

Bar plots demonstrating the mean relative abundance of all genera within luminal and epithelial communities of the small intestine that comprised at least 0.5% of the overall microbial community between animals that received tylosin supplementation and those that did not. Colored boxes represent the family that the genus belongs to and correspond to the colors representing the family in Fig. 3. All families are listed in the legend. Error bars represent the standard error of the mean. Significant differences between animals that received tylosin and those that did not are noted by an asterisk (Kruskal–Wallis analysis of variance; n = 15–20; p < 0.05)