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The effect of three different growth rates on the chemical composition of the dressed carcass of cattle and the relationships between chemical and dissected components

Published online by Cambridge University Press:  27 March 2009

D. M. Murray ,
N. M. Tulloh  and
W. H. Winter
D. M. Murray
Affiliation:
School of Agriculture and Forestry, University of Melbourne, Parkville 3052, Australia
N. M. Tulloh
Affiliation:
School of Agriculture and Forestry, University of Melbourne, Parkville 3052, Australia
W. H. Winter
Affiliation:
School of Agriculture and Forestry, University of Melbourne, Parkville 3052, Australia
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Summary

This paper describes the chemical composition of dressed carcasses of Angus steers and relationships between chemical and dissected components of these carcasses. These cattle were grown from 300 to 440 kg at three different rates. The rates were: High (H, 0·8 kg/day), Low (L, 0·4 kg/day) and High-Maintenance (HM, 0·8 kg/day followed by a period during which body weight was maintained constant).

There were no significant differences between treatments in the regression equations for weight of water, protein or chemical fat against left side weight (half carcass). However, weight of ash was significantly greater in the HM group than in the H group. These results are similar to those obtained with dissection data on the right side of the same carcasses.

There were no significant differences between treatments for regression equations predicting dissected composition from chemical composition. The common regressions for each component are as follows:

log y (total side muscle) = 0·282 + 1·061 log × (protein) (Sν,× 3%), (i)

log y (total side bone) = 1·055 + 0·836 log × (ash) (Sν×) (ii)

log y (total side fat) = – 0·380 + 1·076 log × (chemical fat) (Sν,× 4%), (iii)

where all values of × and y are in grams.

Equations (i) and (ii) were used to predict the dissected composition of Angus steers from another experiment in which one group of cattle lost weight. Equation (i) gave useful predictions but equation (ii) did not.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 85 , Issue 2 , October 1975 , pp. 309 - 314
Copyright
Copyright © Cambridge University Press 1975

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References

REFERENCES

Association of Official Agrictrltural Chemists. (1955). Official Methods of Analysis, 8th ed.Washington: A.O.A.C.Google Scholar
Brookes, A. J. & Vincent, L. S. (1950). Beef production experiment at Cambridge. Journal of the Royal Agricultural Society 111, 99–118.Google Scholar
Burton, J. H. & Reid, J. T. (1969). Interrelationships among energy input, body size, age and composition of sheep. Journal of Nutrition 97, 517–24.CrossRefGoogle ScholarPubMed
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.), 4–1 to 4–1·3. Melbourne, Australia: C.S.I.R.O.Google Scholar
Callow, E. H. (1948). Comparative studies of meat. II. The changes in the carcass during growth and fattening, and their relation to the chemical composition of the fatty and muscular tissues. Journal of Agricultural Science, Cambridge 38, 174–99.CrossRefGoogle Scholar
Callow, E. H. (1961). Comparative studies of meat. VII. A comparison between Hereford, Dairy Shorthorn and Friesian steers on four levels of nutrition. Journal of Agricultural Science, Cambridge 56, 265–82.CrossRefGoogle Scholar
Drew, K. R. (1973). Changes in whole body and carcass composition in young sheep during weight loss and subsequent regrowth. Proceedings of the N.Z. Society oj Animal Production 33, 184–90.Google Scholar
Guenther, J. J., Bushman, D. H., Pope, L. S. & Morrison, R. D. (1965). Growth and development of the major carcass tissues in beef calves from weaning to slaughter weight, with reference to the plane of nutrition. Journal of Animal Science 24, 1184–91.CrossRefGoogle Scholar
Haecker, T. L. (1920). Investigations in beef production. University of Minnesota Agricultural Experiment Station Bulletin, no. 193.Google Scholar
Hankins, O. G. & Howe, P. E. (1946). Estimation of the composition of beef carcasses and cuts. Technical Bulletin U.S. Department of Agriculture, no. 926.Google Scholar
Morgan, J. A. & Owen, J. B. (1972). The nutrition of artificially reared lambs. 2. The effect of feed restriction at three stages of growth on growth and carcass composition. Animal Production 15, 293–300.Google Scholar
Morgan, J. A. & Owen, J. B. (1973). The nutrition of artificially reared lambs. 3. The effect of sex on the performance and carcass composition of lambs subjected to different nutritional treatments. Animal Production 16, 49–57.Google Scholar
Murray, D. M. (1971). Growth rate and body composition of cattle. Ph.D. Thesis, University of Melbourne.Google Scholar
Murray, D. M., Tulloh, N. M. & Winter, W. H. (1974). Effects of three different growth rates on empty body weight, carcass weight and dissected carcass composition of cattle. Journal of Agricultural Science, Cambridge 82, 535–47.CrossRefGoogle Scholar
Russel, A. J. P., Gunn, R. G., Skedd, E. & Doney, J. M. (1968). Relationships between chemical and physical composition of Scottish Blackface ewes. Animal Production 10, 53–58.CrossRefGoogle Scholar
Searle, T. R., Graham, N. McC. & O'callaghan, M. (1972). Growth in sheep. I. The chemical composition of the body. Journal of Agricultural Science, Cambridge 79, 371–82.CrossRefGoogle Scholar
Seebeck, R. M. (1966). Growth and development in farm animals. Ph.D. Thesis, University of Melbourne.Google Scholar
Seebeck, R. M. (1967). Developmental growth and body weight loss of cattle. I. Experimental design, body weight growth, and the effects of developmental growth and body weight loss on the dressed carcass and the offal. Australian Journal of Agricultural Research 18, 1015–31.CrossRefGoogle Scholar
Seebeck, R. M. & Tulloh, N. M. (1968a). Developmental growth and body weight loss of cattle. II. Dissected components of the commercially dressed and jointed carcass. Australian Journal of Agricultural Research 19, 477–95.CrossRefGoogle Scholar
Seebeck, R. M. & Tulloh, N. M. (1968b). Developmental growth and body weight loss of cattle. III. Dissected components of the commercially dressed carcass, following anatomical boundaries. Australian Journal of Agricultural Research 19, 673–88.CrossRefGoogle Scholar
Seebeck, R. M. & Tulloh, N. M. (1969). Developmental growth and body weight loss of cattle. IV. Chemical components of the commercially dressed and jointed carcass. Australian Journal of Agricultural Research 20, 199–211.CrossRefGoogle Scholar
Shorland, F. B., De La Mare, P. B. D., Sorrell, D. M. P. & Barnicoat, C. R. (1947). Simplified procedures for determining the nutritive value of carcasses with special reference to New Zealand lamb and mutton. N.Z. Journal of Science and Technology A 29, 76–88.Google Scholar
Trowbridge, P. F., Moulton, C. R. & Haigh, L. D. (1918). Effect of limited food supply on the growth of young beef animals. University of Missouri Agricultural Experiment Station Research Bulletin, no. 28.Google Scholar
Ulyatt, M. J. & Barton, R. A. (1963). A comparison of the chemical and dissectible carcass composition of New Zealand Romney Marsh ewes. Journal of Agricultural Science, Cambridge 60, 285–89.CrossRefGoogle Scholar
Verbeek, W. A. (1958). The influence of winter nutritional planes on the performance of young beef steers. College of Agriculture and Experiment Station Potchefstroom Publication (taken from D.Sc. Agric. Thesis, University of Stellenbosch).Google Scholar
Verbeek, W. A. (1961). The effect of nutritional plane on the composition of the beef calf. South African Journal of Agricultural Science 4, 71–82.Google Scholar
Winter, W. H. (1971). A study of weight loss and compensatory gain in sheep. Ph.D. Thesis, University of Melbourne.Google Scholar