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A study of growth in calves:I. Carcass tissues

Published online by Cambridge University Press:  27 March 2009

R. M. Butterfield
Affiliation:
Department of Veterinary Anatomy, University of Queensland
E. R. Johnson
Affiliation:
Department of Veterinary Anatomy, University of Queensland
W. J. Pryor
Affiliation:
Department of Animal Husbandry, University of Queensland

Summary

Calves were slaughtered at predetermined weights after being fed individually on fresh and reconstituted whole milk at three levels. The highest level of feeding was ad libitum and the lowest was aimed at keeping the calves at their birth weight for 72 days before providing extra milk to allow growth to proceed.

Dressing percentage did not decline with age as it did in a previous experiment using roughage in the diet. The faster-grown calves had a higher dressing percentage. It is concluded that both rate of growth and the physical nature of the diet influenced dressing percentage.

Muscle: bone ratio and the amount of fat and bone in the carcass were not significantly affected by the rate of live-weight increase.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1971

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References

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.), 4.1.4.13. Melbourne, Australia: C.S.I.R.O.Google Scholar
Butterfield, R. M., Pryor, W. J. & Berg, R. T. (1966). A study of carcase growth in calves. Res. vet. Sci. 7, 417.CrossRefGoogle ScholarPubMed