Table 2.
Main QTL effects, location and phenotypic variance explained by body composition traits in chicken lines divergently selected for low or high growth for combined sex.
| Chromosome | QTL Position (cM) | 2Log BF1 | Effect2 | Variance explained by QTL effect |
|---|---|---|---|---|
| Breast meat yield | ||||
| 7 | 87.0 | 6.77 | 49.17 | 3.01 |
| Pectoralis major weight | ||||
| 7 | 87.0 | 6.48 | 46.34 | 3.02 |
| Pectoralis major yield | ||||
| 7 | 83.0 | 8.07 | 80.13 | 7.00 |
| Pectoralis minor weight | ||||
| 3 | 78.7 | 2.21 | -23.55 | 1.09 |
| 4 | 14.0 | 4.02 | 28.66 | 1.08 |
| 17 | 21.0 | 11.08 | 39.59 | 6.63 |
| Pectoralis minor yield | ||||
| 4 | 12.0 | 4.69 | 30.62 | 1.64 |
| 17 | 21.0 | 11.30 | 38.11 | 6.17 |
| Thigh + drumstick weight | ||||
| 27 | 0.0 | 10.17 | 32.19 | 1.16 |
| Thigh + drumstick yield | ||||
| 27 | 0.0 | 10.73 | 24.55 | 1.34 |
| Abdominal fat weight | ||||
| 1 | 202.0 | 7.25 | 154.38 | 6.62 |
| 2 | 276.0 | 6.66 | -217.64 | 4.03 |
| 5 | 101.4 | 8.63 | -28.23 | 13.26 |
| 7 | 2.1 | 11.13 | 128.13 | 13.74 |
| 14 | 16.4 | 6.10 | 69.83 | 7.08 |
| 15 | 30.8 | 5.39 | -29.93 | 5.09 |
| 18 | 14.9 | 9.34 | -42.46 | 3.80 |
| Abdominal fat yield | ||||
| 1 | 424.5 | 4.04 | 47.29 | 2.26 |
| 3 | 76.6 | 4.56 | -21.28 | 1.10 |
| 5 | 10.0 | 6.69 | 0.66 | 4.28 |
| 9 | 12.0 | 3.95 | 27.06 | 1.71 |
| 12 | 18.7 | 3.45 | 4.33 | 1.05 |
| 27 | 0.0 | 8.26 | 14.04 | 1.97 |
1 Twice the log of the Bayes Factor 2Main effect of the QTL