Table 5.
Inbreeding informations, regression coefficient of inbreeding, inbreeding effect on trait mean, and p-value on each trait of LHKK chickens
| Trait1) | Total no. of birds | No. of inbred birds (%) | Average inbreeding coefficients2) | SD | Regression coefficient3)±SE | Inbreeding effect on trait mean (% of mean) | p-value |
|---|---|---|---|---|---|---|---|
| BW1D (g) | 11,588 | 733 (6.33) | 0.24 | 1.45 | −0.090±0.02 | −0.29 | <0.0001 |
| BW4 (g) | 11,201 | 726 (6.48) | 0.24 | 1.45 | −0.320±0.24 | −0.15 | 0.26ns |
| BW8 (g) | 10,807 | 721 (6.67) | 0.24 | 1.43 | 0.630±0.63 | 0.10 | 0.48ns |
| BW12 (kg) | 9,777 | 705 (7.21) | 0.26 | 1.46 | 0.003±0.00 | 0.27 | 0.02* |
| BW16 (kg) | 8,948 | 661 (7.39) | 0.26 | 1.43 | 0.001±0.00 | 0.07 | 0.05ns |
| BW20 (kg) | 7,643 | 580 (7.59) | 0.25 | 1.41 | 0.002±0.00 | 0.11 | 0.39ns |
| BW24 (kg) | 6,157 | 497 (8.07) | 0.24 | 1.26 | 0.004±0.00 | 0.19 | 0.34ns |
LHKK, Lueng Hang Kao Kabinburi; No. of inbred birds, % of inbred birds from total observations; SD, standard deviation; SE, standard error; ns, non-significant.
1)
BW1D, body weight at day 1; BW4, BW8, BW12, BW16, BW20, BW24 are body weight at 4, 8, 12, 16, 20 and 24 weeks of age, respectively.
2)
Average for all animals of trait.
3)
The regression coefficient of inbreeding level.