Table 3. Number of genes differentially expressed in blood of pigs divergently selected for low or high residual feed intake (RFI) fed a low-fat, low-fiber (LF) or high-fat, high-fiber (HF) diet.

	Low RFI / High RFIa		HF / LFb
DE genesc	Overexpressed	Underexpressed	Overexpressed	Underexpressed
Total number	528	477	39	6
FCd ≥ 1.5	44	65	8	-
FCd ≥ 2	10	17	2	-

^aLow RFI versus high RFI ratio, overexpressed and underexpressed in low RFI compared with high RFI pigs.

^bHF versus LF ratio, overexpressed and underexpressed in pigs fed the HF diet compared with pigs fed the LF diet.

^cDE: Differentially expressed; P < 0.01.

^dFC: Fold change ratio.