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Growth and body composition of two breeds of sheep, and their cross, at similar proportions of mature size when given highly digestible or bulky feeds ad libitum

Published online by Cambridge University Press:  20 November 2017

S. E. Morrow ,
G. C. Emmans ,
R. M. Lewis ,
J. E. Donbavand  and
J FitzSimons
S. E. Morrow
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
G. C. Emmans
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
R. M. Lewis
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
J. E. Donbavand
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
J FitzSimons
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
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Extract

Differences in sheep management and breeding programmes lead to variations in carcass fatness. It is necessary to investigate the relationships between breed, growth and composition on different feeds in order that leaner carcasses may be produced. The purpose of this experiment was to investigate these relationships in two breeds of sheep, and their cross, when fed either a food considered non-limiting to growth or a food that was restrictive by virtue of its bulk.

Suffolk (S), Scottish Blackface (B) and reciprocal cross (X) lambs were born over a 4 week period beginning late February. The lambs were weaned at a weight (0.20 estimated mature size) or no later than 8 weeks of age and following an adjustment period, individually penned.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 106
Copyright
Copyright © The British Society of Animal Science 1999

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References

Friggens, N.C., Shanks, M., Kyriazakis, I., Oldham, J.D. and McClelland, T.H. 1997. The growth and development of nine European breeds: Scottish Blackface, Welsh Mountain and Shetland. Animal Science 65:409–426.Google Scholar
Lewis, R.M., Emmans, G.C., Simm, G., Dingwall, W.S. and FitzSimons, J. 1998. A description of the growth of sheep. Proceeding of the British Society of Animal Science, p 47.Google Scholar