Table 4. Phenotypic and genetic correlations of dry matter intake, average daily gain, weight at selection, hip height, chest circumference, loin-eye area, backfat thickness and rump fat thickness with the feed efficiency traits.
| Trait | DMI | ADG | WS | HH | CC | LEA | BF | RF |
|---|---|---|---|---|---|---|---|---|
| Phenotypic correlation | ||||||||
| Gain:feed | -0.28 | 0.58 | 0.10 | -0.03 | 0.07 | 0.04 | -0.02 | 0.01 |
| RFI | 0.73 | 0.04 | 0.06 | 0.04 | 0.06 | 0.03 | 0.05 | 0.06 |
| RFIb | 0.71 | 0.02 | 0.05 | 0.03 | 0.04 | 0.03 | 0.03 | 0.04 |
| RFIsf | 0.70 | 0.02 | 0.05 | 0.04 | 0.04 | 0.01 | 0.02 | 0.03 |
| RG | -0.10 | 0.68 | 0.17 | 0.00 | 0.09 | 0.03 | -0.03 | 0.01 |
| RIG | -0.44 | 0.34 | 0.04 | -0.03 | 0.00 | 0.01 | -0.08 | -0.05 |
| RIGb | -0.41 | 0.35 | 0.05 | -0.03 | 0.01 | 0.00 | -0.04 | -0.04 |
| RIGsf | -0.41 | 0.35 | 0.05 | -0.04 | 0.01 | 0.00 | -0.05 | -0.02 |
| Genetic correlation | ||||||||
| Gain:feed | -0.11 ± 0.18 | 0.39 ± 0.15 | 0.09 ± 0.15 | 0.08 ± 0.15 | 0.15 ± 0.20 | 0.01 ± 0.19 | -0.22 ± 0.20 | -0.23 ± 0.20 |
| RFI | 0.68 ± 0.08 | 0.33 ± 0.16 | 0.17 ± 0.14 | 0.06 ± 0.13 | 0.14 ± 0.17 | 0.00 ± 0.16 | 0.37 ± 0.17 | 0.30 ± 0.16 |
| RFIb | 0.73 ± 0.09 | 0.40 ± 0.17 | 0.23 ± 0.16 | 0.06 ± 0.14 | 0.14 ± 0.18 | -0.06 ± 0.17 | 0.33 ± 0.19 | 0.31 ± 0.17 |
| RFIsf | 0.71 ± 0.09 | 0.38 ± 0.17 | 0.22 ± 0.15 | 0.08 ± 0.14 | 0.14 ± 0.18 | -0.04 ± 0.19 | 0.33 ± 0.18 | 0.32 ± 0.17 |
| RG | 0.21 ± 0.17 | 0.66 ± 0.09 | 0.34 ± 0.14 | 0.25 ± 0.14 | 0.34 ± 0.18 | 0.09 ± 0.17 | -0.17 ± 0.17 | -0.18 ± 0.17 |
| RIG | -0.27 ± 0.16 | 0.19 ± 0.17 | 0.10 ± 0.15 | 0.13 ± 0.14 | 0.17 ± 0.19 | 0.16 ± 0.19 | -0.38 ± 0.20 | -0.31 ± 0.20 |
| RIGb | -0.27 ± 0.19 | 0.14 ± 0.20 | 0.08 ±0.17 | 0.13 ± 0.14 | 0.22 ± 0.22 | 0.28 ± 0.24 | -0.45 ± 0.26 | -0.42 ± 0.25 |
| RIGsf | -0.28 ± 0.18 | 0.12 ± 0.20 | 0.07 ± 0.17 | 0.15 ± 0.16 | 0.20 ± 0.22 | 0.29 ± 0.23 | -0.45 ± 0.26 | -0.43 ± 0.25 |
DMI, dry matter intake; ADG, average daily gain; RFI, residual feed intake; RFIb, residual feed intake adjusted for backfat thickness; RFIsf, residual feed intake adjusted for backfat and rump thickness; RG, residual body weight gain; RIG, residual intake and gain; RIGb, residual intake and gain using RFIb; RIGsf, residual intake and gain using RFIsf; WS, weight at selection; HH, hip height of males and females at selection; CC, chest circumference of males and females at selection; LEA, loin-eye area; BF, backfat thickness; RF, rump fat thickness.