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Genetic Gains in Annual Egg Production from Selection on Early Part-Records*

Published online by Cambridge University Press:  14 July 2017

B. B. Bohren
B. B. Bohren
Affiliation:
Department of Animal Sciences, Purdue University, Lafayette, Indiana 47907
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Extract

The use of early partial egg records as a selection criterion for improving annual egg production was proposed by Dempster and Lerner (1947). Their proposal was based on the contention of Dickerson and Hazel (1944) that genetic gain should be evaluated per unit of time, and that, under certain conditions, the genetic gain per unit of time could be increased by reducing the age of the parents.

Type
Research Article
Information
World's Poultry Science Journal , Volume 26 , Issue 3 , September 1970 , pp. 647 - 657
Copyright
Copyright © Cambridge University Press 1970

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Footnotes

*

Journal paper No. 4003, Purdue University Agricultural Experiment Station.

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