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At the phylum level, the effects of tryptophan supplementation on the relative abundance of colonic digesta. CON, control group; LPS-CON, piglets challenged with lipopolysaccharide; LPS-Trp, piglets fed with tryptophan and challenged with lipopolysaccharide. (A) The graph showed the level composition of phylum. (B) The change of Firmicutes. (C) The change of Bacteroidota. Values are shown as mean ± standard error (n = 6).
