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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
| 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 |
