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Selection for body weight at eight weeks of age. 3. Realized heritabilities of unselected traits


Selection for body weight at eight weeks of age. 3. Realized heritabilities of unselected traits



Poultry Sci 45(5): 923-933



DOI: 10.3382/ps.0450923

Correlated responses of 24 and 38-week body weight, egg weight, age at sexual maturity and egg production were measured through the F7 generation in lines of chickens selected bidirectionally for 8 -week body weight. Corrected realized h2 from the divergence between the lines and for each selected line were obtained for the unselected traits and compared with uncorrected realized h2 and estimates from full-sib correlations. Corrected realized h2 were comparatively uniform whereas the uncorrected realized h2 were inflated. Reasons for this were discussed.

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Accession: 014660399

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