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Table 1 Feed intake, RFI and growth traits for the entire population of low and high RFI steers during different dietary phases

From: The effect of breed and diet type on the global transcriptome of hepatic tissue in beef cattle divergent for feed efficiency

Trait Diet-Breed Low (S.D.) High (S.D.) P-value
DMI (kg/d) H1.CH 7.8 (0.68) 9 (0.58) < 0.001
H1.HF 8.3 (0.87) 9.3 (0.68) < 0.001
ZG.CH 8.8 (0.48) 9.4 (0.42) < 0.001
ZG.HF 9.1 (0.47) 10 (0.48) < 0.001
H2.CH 10.8 (0.69) 12.3 (0.90) < 0.001
H2.HF 11.6 (1.18) 13.6 (1.25) < 0.001
RFI (kg DM/d) H1.CH −0.5 (0.15) 0.56 (0.17) < 0.001
H1.HF −0.5 (0.27) 0.53 (0.26) < 0.001
ZG.CH −0.35 (0.16) 0.35 (0.17) < 0.001
ZG.HF −0.42 (0.27) 0.56 (0.18) < 0.001
H2.CH −0.75 (0.29) 0.76 (0.39) < 0.001
H2.HF −1.01 (0.54) 1.03 (0.28) < 0.001
ADG (kg) H1.CH 1.3 (0.36) 1.4 (0.26) 0.43
H1.HF 1.4 (0.35) 1.4 (0.20) 0.78
ZG.CH 1.4 (0.14) 1.4 (0.22) 0.96
ZG.HF 1.2 (0.18) 1.3 (0.24) 0.85
H2.CH 1.4 (0.25) 1.4 (0.28) 0.64
H2.HF 1.3 (0.47) 1.3 (0.16) 0.98
MBW (kg) H1.CH 95 (5.15) 96 (5.77) 0.79
H1.HF 81 (7.81) 80 (6.12) 0.90
ZG.CH 116 (7.26) 115 (6.41) 0.80
ZG.HF 102 (3.34) 104 (8.34) 0.90
H2.CH 139 (6.91) 140 (7.28) 0.79
H2.HF 131 (8.41) 141 (9.50) 0.90
  1. DMI dry matter intake, RFI residual feed intake, ADG average daily gain, MBW metabolic body weight, CH Charolais, HF Holstein-Friesian, Low low RFI, High high RFI, S.D. Standard deviation, H1 high concentrate diet 1, H2 high concentrate diet 2, ZG zero-grazed grass diet