Table 2.
Summary of genetic analysis for egg weights at different ages
| Traita | FEW | EW32 | EW36 | EW40 | EW44 | EW48 | EW52 | EW56 | EW60 |
|---|---|---|---|---|---|---|---|---|---|
| FEW | 0.36 (0.04) | 0.89 (0.04) | 0.91 (0.04) | 0.79 (0.05) | 0.87 (0.05) | 0.82 (0.05) | 0.86 (0.05) | 0.77 (0.06) | 0.80 (0.05) |
| EW32 | 0.53 | 0.59 (0.04) | 1.00 (0.01) | 0.98 (0.01) | 1.00 (0.01) | 0.99 (0.01) | 0.95 (0.02) | 0.94 (0.02) | 0.93 (0.02) |
| EW36 | 0.48 | 0.78 | 0.60 (0.04) | 0.97 (0.01) | 0.99 (0.01) | 0.99 (0.01) | 0.96 (0.02) | 0.94 (0.02) | 0.95 (0.02) |
| EW40 | 0.44 | 0.78 | 0.76 | 0.54 (0.04) | 1.00 (0.01) | 0.98 (0.01) | 0.96 (0.02) | 0.97 (0.02) | 0.96 (0.02) |
| EW44 | 0.44 | 0.71 | 0.7 | 0.74 | 0.47 (0.04) | 0.99 (0.01) | 0.97 (0.02) | 0.99 (0.02) | 0.99 (0.02) |
| EW48 | 0.43 | 0.74 | 0.72 | 0.76 | 0.74 | 0.56 (0.05) | 0.98 (0.01) | 1.00 (0.02) | 1.00 (0.01) |
| EW52 | 0.45 | 0.71 | 0.71 | 0.74 | 0.72 | 0.78 | 0.56 (0.05) | 1.00 (0.01) | 0.99 (0.01) |
| EW56 | 0.39 | 0.67 | 0.67 | 0.72 | 0.7 | 0.75 | 0.76 | 0.49 (0.05) | 1.00 (0.01) |
| EW60 | 0.41 | 0.68 | 0.67 | 0.71 | 0.69 | 0.74 | 0.76 | 0.76 | 0.53 (0.05) |
Diagonal: heritability estimates. Lower triangle: phenotypic correlations. Upper triangle: genetic correlations. Standard errors of the estimates are in parentheses
aFEW = first egg weight; EW32, EW36, EW40, EW44, EW48, EW52, EW56, EW60 = egg weight per four weeks from 32 to 60 week of age