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The effect of certain dietary regimes on growth pattern and performance of young Friesian bulls fattened for beef

Published online by Cambridge University Press:  27 March 2009

T. G. Boaz ,
G. Kirk  and
C. L. Johnson
T. G. Boaz
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds
G. Kirk
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds
C. L. Johnson
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds
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Summary

Twenty-four Friesian bull calves purchased at 10 weeks old were reared in three groups to slaughter at 420 kg live weight. One group (BB) was fed on a barley-concentrate diet to grow rapidly at 1·41 kg/day, a second (GG) was fed on dried grass cubes to grow slowly at 0·97 kg/day and the other (BG) was fed to grow rapidly to a live weight of 250 kg and thereafter at a slow rate, overall 1–20 kg/day.

Efficiency of food conversion, energetic efficiency and efficiency of dissectible muscle production were best for BB animals, followed by BG and then GG. Changes in carcass composition mainly resulted from differential fat deposition, and bone/ muscle development was allometric in relation to fat-free empty body mass. The development of certain characteristics, the head, depth of forequarter, pelvic length and tibia length followed a time scale and may have reflected the priority for nutrients of some entire male characteristics irrespective of body size.

In addition to being most efficient, the fastest growing bulls yielded carcasses with sufficient fat deposition to meet grading requirements, whereas both the slower growing groups of bulls were penalized in this respect.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 82 , Issue 1 , February 1974 , pp. 97 - 104
Copyright
Copyright © Cambridge University Press 1974

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References

REFERENCES

Agricultobal Research Council (1965). Recommended Procedures for use in the Measurement of Beef Cattle and Carcasses. Agricultural Besearoh Council, London.Google Scholar
Alden, W. G. (1970). The effects of nutritional deprivation on the subsequent productivity of sheep and cattle. Nutrition Abstracts & Reviews 40, 1167–84.Google Scholar
Berg, R. T. & Butterfield, B. M. (1968). Growth patterns of Bovine muscle, Fat and Bone. Journal of Animal Science 27, 611–19.CrossRefGoogle Scholar
Blaxter, K. L. (1971). Relative Efficiencies of Farm Animals in using crops and by-products in production of foods. Proceedings Second World Conference on Animal Production, pp. 31–9. American Dairy Science Association, St Paul, Minnesota.Google Scholar
Elsley, F. W. H., McDonald, I. & Fowler, V. B. (1964). The effect of plane of nutrition on the carcasses of pigs and lambs when variations in fat content are excluded. Animal Production 6, 141–54.Google Scholar
Fowler, V. R. (1968). Body development and some problems of its evaluation in Growth and Development of Mammals (ed. Lodge, G. A. and Lamming, G. E.), pp. 195–211. London: Butterworths.Google Scholar
Hankins, O. G. & Howe, P. E. (1946). Estimation of the composition of beef carcasses and cuts. Technical Bulletin No. 926. U.S. Department of Agriculture, Washington.Google Scholar
Houston, T. W. & Reed, R. (1966). An interpretation of the growth of muscles from their post-mortem properties. Proceedings of the Leeds Philosophical and Literary Society, Scientific Section 9, 281–9.Google Scholar
Lawrence, T. L. & Pearce, J. (1964). Some effects of wintering beef cattle on different planes of nutrition. II. Slaughter data and carcass evaluation. Journal of Agricultural Science, Cambridge 63, 23–4.CrossRefGoogle Scholar
Okwuosa, B. N. (1972). A study of the efficiency of utilisation of metabolisable energy by growing pigs in the development of fat-free body mass. Ph.D. Thesis, University of Leeds, p. 191.Google Scholar
Palsson, H. & Verges, J. B. (1952). Effects of plane of nutrition on growth and development of carcass quality in lambs. Part II. Effects on lambs of 30 lb carcass weight. Journal of Agricultural Science, Cambridge 42, 93–149.CrossRefGoogle Scholar
Pope, L. S., Humphrey, K. D., Walters, L. & Waller, G. R. (1957). Fattening steers and heifers on rations containing different levels of concentrates. Ohio Agricultural Experiment Station, Miscellaneous Publication No. 48, p. 64.Google Scholar
Reed, R. & Houston, T. W. (1969). A new approach to the characterization of ageing tissue. Gerontologia 15, 101–20.CrossRefGoogle Scholar
Rhodes, D. N. (1969). The quality of meat from male and non-male animals. In Meat Production from, Entire Male Animals (ed. Rhodes, D. N.), pp. 189–98. London: Churchill.Google Scholar
Richter, K. (1963). The potential for increasing efficiency of feed utilisation through newer knowledge of animal nutrition (A) Cattle (Meat Production). In Efficiency of Animal Production I, pp. 169–71. E.A.A.P. Rome.Google Scholar
Spedding, A. W. (1969). Some data on commercial bull beef production in the U.K. In Meat Production from Entire Male Animals (ed. Rhodes, D. N.), pp. 91–6. London: Churchill.Google Scholar
Turton, J. D. (1962). The effect of castration on meat production and quality in cattle, sheep and pigs. A.B.A. 30, 447–56.Google Scholar
Warren, R. G. & Flatt, W. P. (1965). Anatomical development of the ruminant stomach. In Physiology of Digestion in the Ruminant, pp. 24–38. Washington: Butterworth.Google Scholar