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Table 2 Effect of residual feed intake (RFI) ranking on feed intake, efficiency and animal performance in beef heifers

From: Stress and immunological response of heifers divergently ranked for residual feed intake following an adrenocorticotropic hormone challenge

  High RFI Low RFI SEM P-value
Number of Animals 12 12
Residual feed intake, kg/d 0.34 −0.48 0.037 0.001
Feed conversion ratio, kg DM/kg gain 8.13 6.19 0.834 0.03
DMI, kg/d 5.92 4.98 0.127 0.001
Mid-test metabolic BW, kg0.75 75 77 1.6 0.27
ADG, kg/d 0.71 0.76 0.028 0.92
Final BW, kg 340 355 9.8 0.21