Fig. 7

The top 20 enriched pathways of differential expression genes (DEGs) between the F and G groups lambs’ liver by KEGG analysis (a). The ordinate is the number of DEGs enriched into the pathway; *Q-value < 0.05; **Q-value < 0.01. Expression of differential genes involved in lipid metabolism in the F and G groups (b). Heatmap colors indicate FPKM values. The arrow represents the gene enrichment pathway, in which the pink arrow represents the down-regulated genes and the blue arrow represents the up-regulated genes. The verification of candidate genes expression in RNA-seq (n = 8 per group) by quantitative real-time PCR test (n = 4 per group) (c). “F” means indoor feeding group; “G” means grazing group