Analysis of selection programme in meat poultry by means of animal model
1997
Pribylova, J. | Pribyl, J. | Soukupova, Z. (Vyzkumny Ustav Zivocisne Vyroby, Prague-Uhrineves (Czech Republic)) | Tyller, M.
To estimate breeding value, data on the performance of two strains and six generations of hens of meat type were used for the commercial characteristics egg production, chick weight at 42 days of age and age at sex maturity. Estimates were calculated separately for each trait. Data were processed using an animal model (AM). Average breeding values and correlations between breeding values for the particular traits were determined for the separate generations. An expected negative relation between egg production and sex maturity in both strains is highly significant (r=-0.25 and -0.31). Relationships of chick weight to egg production and to sex maturity are different in the strains.
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