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Genotype by nutritional environment interactions for lamb growth and carcass composition

Published online by Cambridge University Press:  20 November 2017

J.M. Macfarlane ,
R.M. Lewis  and
G.C. Emmans
J.M. Macfarlane
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG, U.K.
R.M. Lewis
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG, U.K. Department of Animal and Poultry Sciences (0306), Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA24061
G.C. Emmans
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG, U.K.
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Extract

Since UK slaughter generation lambs are produced from many different breeds in a wide range of environments, the possibility of interactions between genotype and feed treatment is of both practical and theoretical interest. Such an interaction exists for growth rate in different selection lines of Suffolk sheep on different levels of concentrate feeding (Lewis et al., 2002). Whether interactions exist between breed and feed treatment for lamb growth and carcass composition was investigated using two diverse breeds in several different nutritional environments.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 225
Copyright
Copyright © The British Society of Animal Science 2004

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References

Genstat 5 Committee. 2001. Genstat 5, release 4.2. Lawes Agricultural Trust, Rothamsted Experimental Station, Harpenden.Google Scholar
Lewis, R. M., Emmans, G. E. and Simm, G. 2002. Effects of index selection on the carcass composition of sheep given either ad libitum or controlled amounts of food. Animal Science 75: 185–195.CrossRefGoogle Scholar