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Investigations on heritability of and correlations between egg production, sexual maturity, body weight and egg quality traits. Part 2: Phenotypic and genetic correlations



Investigations on heritability of and correlations between egg production, sexual maturity, body weight and egg quality traits. Part 2: Phenotypic and genetic correlations



Archiv fur Geflugelkunde 45(4): 166-175



Data on 3170 hybrid layers, the progeny of 142 sires and 1069 dams, were analysed. The following significant genetic correlations were found with egg mass: egg production, 0.87; egg weight, 0.33; albumen percentage, 0.32; yolk percentage, -0.30; shell percentage, -0.17. Significant genetic correlations with egg weight were: albumen percentage, 0.45; yolk percentage, -0.43; shell percentage, -0.21; albumen height, 0.45; yolk height, 0.50; albumen pH, -0.24.

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