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Estimation of genetic associations between piglet survival and performance traits for sire and dam lines with common ancestry

Published online by Cambridge University Press:  23 November 2017

D. N. R. G. Kapell ,
C. J. Ashworth ,
G. Walling ,
A.B. Lawrence ,
S. A. Edwards  and
R. Roehe
D. N. R. G. Kapell*
Affiliation:
Sustainable Livestock Systems Group, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG, United Kingdom
C. J. Ashworth
Affiliation:
Sustainable Livestock Systems Group, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG, United Kingdom
G. Walling
Affiliation:
JSR Genetics Ltd, Rothwell, Market Rasen LN7 6BP, United Kingdom
A.B. Lawrence
Affiliation:
Sustainable Livestock Systems Group, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG, United Kingdom
S. A. Edwards
Affiliation:
School of Agriculture Food and Rural Development, University of Newcastle, King George VI Building, Newcastle upon Tyne NE1 7RU, United Kingdom
R. Roehe
Affiliation:
Sustainable Livestock Systems Group, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG, United Kingdom
*
Email:[email protected]
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Extract

Recently much research has been carried out to enhance piglet survival by genetic improvement. Heritabilities of traits associated with piglet survival are generally low, but the genetic variation is large enough to provide improvement through breeding (Knol et al., 2002). However, correlations between some traits and/or between maternal and direct genetic effects have shown contradictory results, and not many studies have considered these effects. Reports of correlations between piglet survival traits and production traits are even fewer. The aim of this study was to estimate heritabilities of piglet survival traits and their genetic associations with other reproduction traits as well as production traits, using a Bayesian approach and appropriate models and genetic statistical procedures in order to obtain more accurate genetic parameters.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2008 , 2008 , pp. 103
Copyright
Copyright © The British Society of Animal Science 2008

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References

Knol, E.F., Ducro, B.J., Van Arendonk, J.A.M. and Van der Lende, T. 2002. Livestock Production Science. 73, 153–164.Google Scholar
Misztal, I., Tsuruta, S., Strabel, T., Auvray, B., Druet, T., and Lee, D.H. 2002. 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, 2pp.Google Scholar