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Prediction of beef carcass composition from organs and tissues of the non-carcass parts

Published online by Cambridge University Press:  27 March 2009

E. R. Johnson  and
M. K. Vidyadaran
E. R. Johnson
Affiliation:
Veterinary School, University of Queensland, St Lucia, Australia
M. K. Vidyadaran
Affiliation:
Veterinary School, University of Queensland, St Lucia, Australia
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Summary

Individual muscles, individual bones and fat depots from the non-carcass parts (head, foreshanks and tail) of 40 steers (chilled carcass weight 142–174 kg) were studied in an attempt to predict carcass composition more accurately than in an earlier study where the crude non-carcass parts, head, tongue, foreshanks and hindshanks were used.

The technique did not improve the accuracy of prediction of muscle or bone. Carcass fat, which was calculated by difference in the earlier study, was predicted more accurately using intermandibular fat weight (requiring 3–4 min to obtain) plus fat thickness at the 12th rib. However, the accuracy of this prediction (carcass fatness range 14·0–33·6%, residual standard deviation 1·98%) was no greater than that using chilled side weight plus fat thickness at the 12th rib.

Careful dissection and trimming of anatomical entities from the non-carcass parts therefore offered a slight advantage only in the prediction of carcass components over existing techniques.

Substitution of hot side weight for chilled side weight, and sacral crest fat thickness for fat thickness at the 12th rib did not lead to a loss in the accuracy of prediction of muscle, bone or fat.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 102 , Issue 3 , June 1984 , pp. 511 - 516
Copyright
Copyright © Cambridge University Press 1984

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References

Butterfield, R. M. (1963). Estimation of carcase composition: the anatomical approach. In Symposium on Carcase Composition and Appraisal of Meat Animals (ed. Tribe, D. E.), paper 4–1. Melbourne, Australia: C.S.I.R.O.Google Scholar
Butterfield, R. M. (1965). The relationship of carcase measurements and dissection data to beef carcase composition. Research in Veterinary Science 6, 24–32.CrossRefGoogle ScholarPubMed
Charles, D. D. (1974). A method of estimating carcase components in cattle. Research in Veterinary Science 16, 89–94.CrossRefGoogle ScholarPubMed
Johnson, E. R. (1979). The use of non-carcass parts in the prediction of beef carcass composition on the slaughter floor. Australian Journal of Agricultural Research 30, 751–765.CrossRefGoogle Scholar
Johnson, E. R. & Charles, D. D. (1981). The use of carcass cuts to predict beef carcass composition: a research technique. Australian Journal of Agricultural Research 32, 987–997.CrossRefGoogle Scholar
Johnson, E. R. & Vidyadaran, M. K. (1981). An evaluation of different sites for measuring fat thickness in the beef carcass to determine carcass fatness. Australian Journal of Agricultural Research 32, 999–1007.Google Scholar
Kempster, A. J., Cuthbertson, A. & Jones, D. W. (1977). Bone weight distribution in steer carcasses of different breeds and crosses, and the prediction of carcass bone content from the bone content of joints. Journal of Agricultural Science, Cambridge 89, 675–682.CrossRefGoogle Scholar
Kempster, A. J., Cuthbertson, A. & Smith, R. J. (1976). Variation in lean distribution among steer carcasses of different breeds and crosses. Journal of Agricultural Science, Cambridge 87, 533–542.CrossRefGoogle Scholar
Walker, D. E. (1961). A study of the growth and development of Jersey cattle. I. A new carcass dissection technique. New Zealand Journal of Agricultural Research 4, 99–122.CrossRefGoogle Scholar
Williams, D. R. (1976). Beef carcass weights, sample joints and measurements as predictors of composition. World Review of Animal Production 12, 13–31.Google Scholar