Fig. 6From: Preweaning period is a critical window for rumen microbial regulation of average daily gain in Holstein heifer calvesFunctional predictions of rumen bacteria between HADG and LADG groups during preweaning period. A–C Relative abundance of function KEGG pathway level 1, level 2 and level 3 (top 10 of carbohydrate metabolism, top 10 of amino acid metabolism, and top 8 of energy metabolism). D Significantly different KEGG enzymes related to carbohydrate and propionate metabolisms between HADG and LADG groups (LDA > 2, P < 0.05). HADG, higher average daily gain group; LADG, lower average daily gain groupBack to article page