Hostname: page-component-848d4c4894-pftt2 Total loading time: 0 Render date: 2024-05-17T03:20:07.385Z Has data issue: false hasContentIssue false
  • English
  • Français

Consistency and accuracy of pig carcass lean prediction from P2 fat thickness and sample joint dissection

Published online by Cambridge University Press:  24 November 2017

J Planella ,
G L Cook  and
C C Warkup
J Planella
Affiliation:
c/o Meat and Livestock Commission, PO Box 44, Winterhill House, Snowdon Drive, Milton Keynes, MK6 1AX
G L Cook
Affiliation:
Meat and Livestock Commission, PO Box 44, Winterhill House, Snowdon Drive, Milton Keynes, MK6 1AX
C C Warkup
Affiliation:
Meat and Livestock Commission, PO Box 44, Winterhill House, Snowdon Drive, Milton Keynes, MK6 1AX
Get access

Abstract

Genetic improvements and developments in production methods have made dramatic changes in the composition of British pig carcasses over the last ten years. As a result, equations for predicting lean concentration are likely to need frequent revision. The first Stotfold Trial was designed to obtain a comprehensive modern data set with which production efficiency, carcass composition and meat quality could be examined for different breed types, sexes and feeding regimens. It therefore provides a valuable database with which to evaluate predictors of carcass lean. The main objective of this paper is to examine the stability of the regression equations predicting carcass lean content from carcass weight, P2 and lean content of sample joints among different populations, sexes and feeding regimens. Two different aspects of prediction were studied. The first was that of carcass grading, the estimation of lean concentration from P2 (measured with an Optical Probe) and carcass weight. The second was that of the estimation of total lean concentration from the dissection of sample joints and from the removal of total subcutaneous fat in the side. The accuracy of these estimators was also examined.

Type
Pig Production
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1990 , March 1990 , pp. 85
Copyright
Copyright © The British Society of Animal Production 1990

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

Cook, G. L., Chadwick, J. P. and Kempster, A. J. 1989. An assessment of carcass probes for use in Great Britain for the EC Pig Grading Scheme. Anim. Prod. 48: 427 – 434.Google Scholar
Cuthbertson, A. 1968. PIDA dissection techniques. Proceedings of the Symposium on Methods of Carcass Evaluation. European Associated for Animal Production, Dublin.Google Scholar
Evans, D. G. and Kempster, A. J. 1979. A comparison of different predictors of the lean content of pig carcasses. 2. Predictors for use in population studies and experiments. Anim. Prod. 28: 97 – 108.Google Scholar
Meat and Livestock Commission, 1989. Stotfold Pig Development Unit. First Trial Results. Meat and Livestock Commission, Milton Keynes, Bucks..Google Scholar