Fig. 2From: Nest preference and laying duration traits to select against floor eggs in laying hensHeritability (h2) and genetic correlations (rg) of laying duration traits by line and 28-day period. MLD mean laying duration, MDB mean duration in the nest before laying, MDA mean duration in the nest after laying. Standard errors for h2 and rg ranged from 0.05 to 0.12Back to article page