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Two methods of using X-ray Computed Tomography to predict carcass composition in sheep

Published online by Cambridge University Press:  23 November 2017

J. M. Macfarlane ,
R. M. Lewis ,
G. C. Emmans ,
J.M. Young  and
G. Simm
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 Tech, Blacksburg, Virginia, USA 24061
G. C. Emmans*
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG, U.K.
J.M. Young*
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG, U.K. Sheep Improvement Ltd, PO Box 66, Lincoln University, Canterbury, New Zealand
G. Simm*
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG, U.K.
*
Email: Jenny.Macfarlane@sac.ac.uk
Email: Jenny.Macfarlane@sac.ac.uk
Email: Jenny.Macfarlane@sac.ac.uk
Email: Jenny.Macfarlane@sac.ac.uk
Email: Jenny.Macfarlane@sac.ac.uk
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Extract

X-ray computed tomography (CT) can be used to accurately assess carcass composition in sheep (Sehested, 1984; Young et al., 2001) both in research and commercially, as part of a breed selection programme. Two different CT scanning methods have been used: a) the reference scan method where tissue weights are predicted from tissue areas in a small set of cross-sectional scans at ‘anatomical landmarks’, and b) the Cavalieri method where a larger number of scans are taken along the body. It is of interest to examine the accuracy of evaluations made using these two methods and the individual merits of the two methods depending on their application.

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Type
Theatre Presentations
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Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 42
Copyright
Copyright © The British Society of Animal Science 2005

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References

Genstat 7 Committee. 2003. Genstat 7. Lawes Agricultural Trust, Rothamsted Experimental Station, Harpenden.Google Scholar
Sehested, E. 1984. In vivo measurement of body composition in meat animals (ed. Lister, D), pp67–74. Elsevier, London.Google Scholar
Young, M. J., Simm, G. and Glasbey, C. A. 2001. Proceedings of the British Society of Animal Science, pp250–254.CrossRefGoogle Scholar