Genetic correlation between performance of pure‐bred white leghorn pullets and their paternal half‐sisters from Rhode Island red dams

Synopsis

The genetic correlations for age at first egg, part‐year egg production, egg weight and body weight at 20 weeks were high and positive in pure‐breds and their cross‐bred half‐sibs. This indicates that the performance of the cross between White Leghorn and Rhode Island Red can be further improved through intra‐population selection for these characters in the two parental breeds.