Table 4.

Estimated heritability for each trait measured in each environment and genetic correlations considering the records of a given performance in both environments (France-Taiwan) as different traits within each line

Traits	h2 in France		h2 in Taiwan		Genetic correlation between traits defined for each measurement in each environment
	Control line	Selection line	Control line	Selection line	Control line	Selection line
Body weight at 16 weeks	0.51 ± 0.161	0.85 ± 0.15	0.64 ± 0.16	0.46 ± 0.12	0.44 ± 0.25	0.82 ± 0.13
Age at first egg	0.17 ± 0.11	0.49 ± 0.11	0.31 ± 0.14	0.42 ± 0.12	-0.45 ± 0.38	0.16 ± 0.16
Clutch length (trans.)	0.57 ± 0.11	0.20 ± 0.08	0.91 ± 0.13	0.12 ± 0.07	0.98 ± 0.06	0.49 ± 0.45
Egg number at 44 weeks (trans.)	0.49 ± 0.17	0.32 ± 0.12	0.37 ± 0.18	0.01 ± 0.03	0.48 ± 0.09	-0.10 ± 1.48
Laying rate	0.50 ± 0.18	0.27 ± 0.10	0.35 ± 0.16	0.07 ± 0.06	0.23 ± 0.09	0.14 ± 0.58
Adult body weight	0.52 ± 0.14	0.69 ± 0.14	0.38 ± 0.17	0.34 ± 0.13	0.34 ± 0.25	0.96 ± 0.05
Egg weight	0.39 ± 0.09	0.60 ± 0.10	0.18 ± 0.09	0.38 ± 0.10	0.42 ± 0.35	0.86 ± 0.13

¹ asymptotic standard error