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Genetic parameters for a heavy female turkey line

Published online by Cambridge University Press:  23 November 2017

A. D. Kranis
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS, U.K. Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, EH9 3JT, U.K.
J. A. Woolliams
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS, U.K.
W. G. Hill
Affiliation:
Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, EH9 3JT, U.K.
P. M. Hocking
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS, U.K.
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Extract

The major selection criterion in the turkey breeding industry is increased breast muscle and body weight in order to adapt to market demands. In female lines a dual selection for both body weight and egg production is performed. However, most published estimates indicate a variable correlation between growth and egg number (Nestor et al., 1996) and so the challenge posed is how to best to select for those opposing goals. The objective of this study was to investigate the effects of simultaneous selection for body weight and egg number by estimating the genetic parameters for a research population held by a commercial company in two different locations.

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Theatre Presentations
Copyright
Copyright © The British Society of Animal Science 2005

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References

Nestor, K.E., Noble, D., Zhu, J. and Moritsu, Y. 1996. Direct and correlated responses to long-term selection for increased body weight and egg production. Poultry Science 75: 11801191.CrossRefGoogle ScholarPubMed

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