Age (d) | Empty body mass2 (g) | Crude protein (%) in | Crude ash (%) in | ||||||||||
Feathers | Feather-free body2 | Feathers | Feather-free body2 | ||||||||||
m | f | m | f | m | f | m | f | m | f | ||||
1 | 42 | 43 | 15.2 | 12.7 | 84.8 | 87.3 | 1.4 | 1.2 | 98.6 | 98.8 | |||
8 | 146 | 169 | 6.7 | 7.0 | 93.3 | 93.0 | 0.9 | 1.1 | 99.1 | 98.9 | |||
15 | 392 | 475 | 5.3 | 7.8 | 94.7 | 92.2 | 1.2 | 1.3 | 98.8 | 98.7 | |||
22 | 872 | 964 | 7.3 | 8.4 | 92.7 | 91.6 | 1.2 | 1.2 | 98.8 | 98.8 | |||
29 | 1634 | 1534 | 7.9 | 10.3 | 92.1 | 89.7 | 1.1 | 1.2 | 98.9 | 98.8 | |||
363 | 2297 | 2279 | 9.4 | 12.3 | 90.6 | 87.7 | 1.1 | 1.4 | 98.9 | 98.6 | |||
Mean | 1004 | 1019 | 8.7 | 9.8 | 91.3 | 90.2 | 1.1 | 1.2 | 98.8 | 98.8 | |||
SD | 839 | 799 | 3.4 | 2.3 | 3.4 | 2.3 | 0.2 | 0.1 | 0.2 | 0.1 | |||
| Significance levels (p) of two-way ANOVA | ||||||||||||
A | <0.001 | <0.001 | <0.001 | =0.001 | =0.001 | ||||||||
G | =0.746 | <0.001 | <0.001 | =0.012 | =0.012 | ||||||||
A × G | =0.006 | <0.001 | <0.001 | =0.005 | =0.005 | ||||||||