Fig. 1

Comparison of phenotypic data and cecum bacterial taxa identified in the metagenomes between ducks with different feed efficiency. Body weight (BW), Residual feed intake(RFI), the daily egg mass(EML), Feed conversion rate (FCR) and actual feed intake(FI) were compared using a t test (A). The 10 most abundant bacterial phyla (B), 10 most abundant bacterial genera (C), and 50 most abundant bacterial species (D). The T-test was used for mean comparison. *P < 0.05