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Relative abundance (%) and composition evaluated at the phylum and family levels of the intestinal microbiome of Pekin ducks in the five groups at different timepoint. (A), 21 d at phylum level; (B), 21 d at family level; (C), 42 d at phylum level; (D), 42 d at family level. CON, group Con; LCB, group CB200; MCB, group CB400; HCB, group CB600; ANT, group A150.
