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Sire Estimation and Selection in Egg Laying Strains of Hens*

Published online by Cambridge University Press:  14 July 2017

Klavidya Zlochevskaya
Klavidya Zlochevskaya*
Affiliation:
Candidate of Biological Sciences Chief of the Genetics and Hybridization Department of All-Union Poultry Research and Technological Institute, Zagorsk, Moscow Region, USSR
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Extract

In building up highly productive egg laying strains of hens and in subsequent work with them correct evaluation and purposeful selection of sires is of high importance.

Until recently evaluation and selection of cockerels for conformation and their mothers’ productivity were the principal methods used although the coefficients of correlation between the productivity of cockerels’ mothers and that of their daughters are not high. This is because their mothers’ phenotypic performance depends not only on the genetic contribution but also on the effects of environment. The latter plays a considerable role in either checking or realising the genetic potential.

Type
Research Article
Information
World's Poultry Science Journal , Volume 26 , Issue 3 , September 1970 , pp. 669 - 676
Copyright
Copyright © Cambridge University Press 1970

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Footnotes

*

A paper presented at the Symposium of the U.S.S.R. National Branch of W.P.S.A. in 1969.

References

Kopylovskaya, G. (1966). Sire estimation by their daughters' egg numbers (In Russian), “Ptitsevodstvo”, No. 6.Google Scholar
Rodina, E. (1967). Heritability data in sire estimation by progeny. (In Russian). “Ptitsevodstvo” No. 3.Google Scholar
Karakoz, A. (1962). Zaklady plemenitby Hospodarskych sveriat. Bratislava.Google Scholar
Orel, V. a kol.-(1967). Obcenyehov drubeze, Praha.Google Scholar