From: Estimating the purebred–crossbred genetic correlation for uniformity of eggshell color in laying hens
Trait
Eggshell color
Environmental variance
Crossbred
Purebred
0.86 (0.047)
−0.057 (0.084)
0.19 (0.15)
−0.013 (0.11)
0.43 (0.10)
0.70 (0.19)