Fig. 3From: Metagenomics reveals differences in microbial composition and metabolic functions in the rumen of dairy cows with different residual feed intakeDifferential KEGG functions between the cows with high (HRFI) and low residual feed intake (LRFI). A KEGG functions on level 2 tested by Wilcoxon rank-sum test. B Significantly different KEGG functions on level 3 tested by Wilcoxon rank-sum test; * P < 0.05, ** P < 0.01Back to article page