highly significantp < 0.05
Genetic correlations of LAY in period 3 with LAY in periods 2, 4, and 5 were highly significant ( p < 0.05).
Genetic correlations of LAY in period 3 with LAY in periods 2, 4, and 5 were highly significant ( p < 0.05).
Unlike egg production, which showed an increasing trend over time, heritability estimates for egg weight generally declined from period 1 to 6 ( Fig. 3 ).