Genetic Gains in Annual Egg Production from Selection on Early Part-Records
- 1 July 1970
- journal article
- Published by Taylor & Francis in World's Poultry Science Journal
- Vol. 26 (3), 647-657
- https://doi.org/10.1079/wps19700021
Abstract
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.Keywords
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