Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-26T22:50:55.629Z Has data issue: false hasContentIssue false
  • English
  • Français

Prediction of the body composition of lambs from the composition of their non-carcass components

Published online by Cambridge University Press:  02 September 2010

R. G. Wilkinson  and
J. F. D. Greenhalgh
R. G. Wilkinson
Affiliation:
Department of Animal Production, School of Agriculture, 581 King Street, Aberdeen AB9 1UB
J. F. D. Greenhalgh
Affiliation:
Department of Animal Production, School of Agriculture, 581 King Street, Aberdeen AB9 1UB
Get access

Abstract

Information on the chemical composition of Suffolk × Blackface lambs was collected and used to predict empty body (EB) component weights from empty body weight (EBW) and non-carcass (NC) component weights. EBW accounted proportionately for 0·94, 0·89 and 0·95 of the variation in EB crude protein, fat and energy content. A combination of NC component weights accounted proportionately for 0·94, 0·95 and 0·96 of the variation in EB crude protein, fat and energy content. EBW and a combination of NC component weights together accounted proportionately for 0·97, 0·97 and 0·98 of the variation in EB crude protein, fat and energy content. Chemical analysis of NC components is cheaper and easier than whole body analysis and provides a viable alternative to sample joint or specific gravity analysis.

Keywords

body compositionlambsnon-carcass components
Type
Research Article
Information
Animal Science , Volume 61 , Issue 2 , October 1995 , pp. 265 - 268
Copyright
Copyright © British Society of Animal Science 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Agricultural Research Council. 1980. The nutrient requirements of ruminant livestock. Commonwealth Agricultural Bureaux, Slough.Google Scholar
Field, R. A., Kemp, J. D. and Varney, W. Y. 1963. Indices for lamb carcass composition. Journal of Animal Science 22: 218–221.CrossRefGoogle Scholar
Folch, J., Lees, M. and Stanley, G. H. 1957. A simple method for the isolation and purification of total lipid from animal tissue, journal of Biological Chemistry 49: 497–509.CrossRefGoogle Scholar
Kempster, A. J. 1981. The indirect evaluation of sheep carcass composition in breeding schemes, population studies and experiments. Livestock Production Science 8: 263–271.CrossRefGoogle Scholar
Kempster, A. J. 1983. Recent developments in beef carcass evaluation. Outlook on Agriculture 12: 147–152.CrossRefGoogle Scholar
Kempster, A. J., Avis, P. R. D., Cuthbertson, A. and Harrington, G. 1976. Prediction of the lean content of carcasses of different breed types. Journal of Agricultural Science, Cambridge 86: 23–34.CrossRefGoogle Scholar
Kraybill, H. F., Bitter, H. L. and Hankins, O. J. 1952. Body composition of cattle 2. Determination of fat and water content from measurements of body specific gravity. Journal of Applied Physiology 4: 575–583.CrossRefGoogle Scholar
Latham, S. D., Moody, W. G. and Kemp, J. D. 1966. Techniques for estimating lamb carcass composition. Journal of Animal Science 25: 492–496.CrossRefGoogle Scholar
McClelland, T. H. and Russel, A. J. F. 1972. The distribution of body fat in Scottish Blackface and Finnish Landrace lambs. Animal Production 15: 301–306.Google Scholar
Timon, V. M. and Bichard, M. 1965a. Quantitative estimates of lamb carcass composition 1. Sample joints. Animal Production 7: 173–182.Google Scholar
Timon, V. M. and Bichard, M. 1965b. Quantitative estimates of lamb carcass composition 3. Carcass measurements and a comparison of the predictive efficiency of sample joint composition, carcass specific gravity determinations and carcass measurements. Animal Production 7: 189–201.Google Scholar
Wilkinson, R. G. and Greenhalgh, J. F. D. 1991. Growth of lambs offered fixed amounts of roughage and concentrate either simultaneously or sequentially. Journal of Agricultural Science, Cambridge 116: 125–134.CrossRefGoogle Scholar
Wilkinson, R. G. and Greenhalgh, J. F. D. 1995 Growth of lambs offered fixed amounts of roughage and concentrate either simultaneously, progressively or separately. Journal of Agricultural Science, Cambridge 124: 304–311.CrossRefGoogle Scholar
Wood, J. D., MacFie, H. J. H., Pomeroy, R. W. and Twinn, D. J. 1980. Carcass composition in four sheep breeds: the importance of type of breed and stage of maturity. Animal Production 30: 135–152.Google Scholar