Table 4. Effects of g.420 C>A in cholecystokinin type A receptor gene on body weight and average daily gain in the conventional and improved meat-type Okumino-kojidori chickens.
| Traits | Conventional (n) |
Improved (n) |
Intercept | Gender | Season | Group | Fvar | Rvar | Variance (%) |
|---|---|---|---|---|---|---|---|---|---|
| Body weight (BW, g) | |||||||||
| BW_3wks | 264 | 204 | 451.2±3.7 | 42.7±3.8** | 50.4±3.8** | 4.7±3.8 | 767694 | 770180 | 0.3 |
| BW_6wks | 264 | 204 | 1239.7±13.4 | 172.5±13.5** | 237.0±13.5** | 16.0±13.6 | 9848212 | 9877530 | 0.3 |
| BW_9wks | 264 | 204 | 1922.5±22.4 | 421.3±22.6** | 539.0±22.6** | 36.2±22.7 | 27494092 | 27644874 | 0.5 |
| BW_12wks | 264 | 204 | 2430.4±29.9 | 636.6±30.2** | 778.9±30.1** | 118.2±30.3** | 48944685 | 50548065 | 3.2 |
| Average daily gain (ADG, g/day) | |||||||||
| ADG_3–6wks | 264 | 204 | 37.5±0.5 | 6.2±0.5** | 8.9±0.5** | 0.5±0.5 | 13938.5 | 13971.9 | 0.2 |
| ADG_6–9wks | 264 | 204 | 32.5±0.5 | 11.9±0.5** | 14.4±0.5** | 1.0±0.5 | 15551.8 | 15658.7 | 0.7 |
| ADG_9–12wks | 264 | 204 | 24.2±0.6 | 10.2±0.6** | 11.4±0.6** | 3.9±0.6** | 19389.0 | 21136.8 | 8.3 |
| ADG_3–12wks | 264 | 204 | 31.4±0.4 | 9.4±0.4** | 11.6±0.4** | 1.8±0.4** | 10663.5 | 11036.3 | 3.4 |
**
P<0.01
*
P<0.05