Table 2.
Heritability estimates (on the diagonal) and genetic correlations (above the diagonal) for body weight, body composition and meat quality traits in the whole population
| BW3 | BW6 | BW9 | BW12 | BMY | AFP | LEGP | pH15 | pHu | L* | a* | b* | DL | SF | IMF | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BW3 |
0.31 ± 0.09 |
0.80 ± 0.08* |
0.7 ± 0.10 |
0.50 ± 0.15 |
0.16 ± 0.20 |
0.45 ± 0.17 |
0.16 ± 0.19 |
0.10 ± 0.21 |
-0.03 ± 0.18 |
0.13 ± 0.19 |
-0.41 ± 0.18 |
-0.18 ± 0.21 |
-0.07 ± 0.21 |
0.15 ± 0.22 |
0.33 ± 0.24 |
| BW6 |
|
0.31 ± 0.07 |
0.94 ± 0.03 |
0.80 ± 0.08 |
0.28 ± 0.19 |
0.46 ± 0.16 |
0.08 ± 0.19 |
-0.10 ± 0.21 |
-0.04 ± 0.18 |
0.04 ± 0.19 |
-0.27 ± 0.19 |
-0.32 ± 0.21 |
-0.01 ± 0.21 |
0.03 ± 0.23 |
0.29 ± 0.25 |
| BW9 |
|
|
0.45 ± 0.08 |
0.93 ± 0.03 |
0.30 ± 0.17 |
0.45 ± 0.14 |
0.16 ± 0.18 |
-0.06 ± 0.19 |
-0.12 ± 0.17 |
0.15 ± 0.17 |
-0.42 ± 0.16 |
-0.28 ± 0.19 |
0.03 ± 0.20 |
0.08 ± 0.21 |
0.35 ± 0.23 |
| BW12 |
|
|
|
0.46 ± 0.09 |
0.22 ± 0.17 |
0.38 ± 0.15 |
0.20 ± 0.17 |
-0.11 ± 0.18 |
-0.26 ± 0.15 |
0.24 ± 0.16 |
-0.42 ± 0.16 |
-0.20 ± 0.18 |
0.01 ± 0.19 |
0.18 ± 0.20 |
0.34 ± 0.22 |
| BMY |
|
|
|
|
0.46 ± 0.12 |
-0.42 ± 0.14 |
0.17 ± 0.17 |
-0.41 ± 0.18 |
0.13 ± 0.17 |
-0.19 ± 0.17 |
0.12 ± 0.18 |
0.06 ± 0.19 |
0.20 ± 0.19 |
-0.08 ± 0.21 |
-0.29 ± 0.23 |
| AFP |
|
|
|
|
|
0.53 ± 0.14 |
-0.24 ± 0.16 |
0.33 ± 0.17 |
0.15 ± 0.16 |
0.02 ± 0.17 |
-0.46 ± 0.15 |
-0.43 ± 0.16 |
-0.21 ± 0.19 |
-0.12 ± 0.20 |
0.32 ± 0.21 |
| LEGP |
|
|
|
|
|
|
0.43 ± 0.08 |
-0.08 ± 0.19 |
-0.18 ± 0.17 |
0.13 ± 0.17 |
-0.13 ± 0.18 |
-0.14 ± 0.19 |
0.04 ± 0.19 |
0.62 ± 0.16 |
0.25 ± 0.23 |
| pH15 |
|
|
|
|
|
|
|
0.34 ± 0.08 |
-0.09 ± 0.18 |
0.16 ± 0.17 |
-0.51 ± 0.14 |
0.04 ± 0.20 |
-0.24 ± 0.19 |
-0.44 ± 0.17 |
-0.13 ± 0.24 |
| pHu |
|
|
|
|
|
|
|
|
0.48 ± 0.08 |
-0.83 ± 0.07 |
0.15 ± 0.17 |
-0.53 ± 0.14 |
-0.68 ± 0.12 |
-0.26 ± 0.18 |
-0.03 ± 0.21 |
| L* |
|
|
|
|
|
|
|
|
|
0.44 ± 0.10 |
-0.28 ± 0.16 |
0.51 ± 0.14 |
0.64 ± 0.13 |
0.34 ± 0.19 |
0.42 ± 0.20 |
| a* |
|
|
|
|
|
|
|
|
|
|
0.39 ± 0.10 |
0.05 ± 0.19 |
0.03 ± 0.19 |
0.22 ± 0.19 |
-0.20 ± 0.24 |
| b* |
|
|
|
|
|
|
|
|
|
|
|
0.30 ± 0.11 |
0.47 ± 0.18 |
0.02 ± 0.22 |
-0.33 ± 0.24 |
| DL |
|
|
|
|
|
|
|
|
|
|
|
|
0.30 ± 0.12 |
0.10 ± 0.22 |
-0.04 ± 0.25 |
| SF |
|
|
|
|
|
|
|
|
|
|
|
|
|
0.22 ± 0.08 |
0.57 ± 0.21 |
| IMF | 0.18 ± 0.07 |
BW3 = Body weight at 3 weeks; BW6 = Body weight at 6 weeks; BW9 = Body weight at 9 weeks; BW12 = Body weight at 12 weeks.
BMY = Breast meat yield; AFP = Abdominal fat percentage; LEGP = Leg percentage; pH15 = pH at 15 min post-mortem; pHu = ultimate pH.
L* = lightness; a* = redness; b* = yellowness; DL = drip loss; SF = shear force; IMF = Intramuscular fat content. * Significant genetic correlations are in bold.