Fig. 6

The modulation of 5-HTP on colon bacterial communities in piglets. (A) The phylum-level taxonomic composition of gut bacterial communities in piglets of different group (abbreviations: A: CON; B: 250Â mg/kg; C: 500Â mg/kg). (B) Effects of dietary 5-HTP supplementation on the phylum level abundance of Firmicutes and Bacteroidetes. (C) The Firmicutes/Bacteroidetes ratio in each group. (D) Effects of dietary 5-HTP supplementation on the phylum level abundance of Lachnospiracea and Ruminococcaceae which belong to Firmicutes. (E) Effects of dietary 5-HTP supplementation on the relative abundance of Spirochaetes, as well as family and genera including