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The effects of variations in the energy concentration and protein source of complete diets for beef cattle

Published online by Cambridge University Press:  02 September 2010

P. J. Broadbent ,
C. Ball  and
T. L. Dodsworth
P. J. Broadbent
Affiliation:
North of Scotland College of Agriculture, Aberdeen
C. Ball
Affiliation:
North of Scotland College of Agriculture, Aberdeen
T. L. Dodsworth
Affiliation:
North of Scotland College of Agriculture, Aberdeen
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Summary

Twelve British Friesian and 12 Ayrshire castrated male calves were fed ad libitum one of three complete diets of differing energy concentration from approximately 140 to 410 kg live weight. Differences in energy concentration of the diets were achieved by inclusion of different proportions of wet distiller's grains (WDG). Increasing the proportion of WDG in the diet caused reductions in performance. This effect was more marked with the Friesians than with the Ayrshires. The treatments had small and generally non-significant effects on carcass conformation and composition.

Type
Research Article
Information
Animal Production , Volume 13 , Issue 4 , November 1971 , pp. 605 - 611
Copyright
Copyright © British Society of Animal Science 1971

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References

REFERENCES

Bowers, H. B., Preston, T. R., MacLeod, N. A., McDonald, I. and Philip, E. B. 1965. Intensive beef production. 5. The effect of different sources of protein on nitrogen retention. Anim. Prod. 7: 303–308.Google Scholar
Broadbent, P. J. 1968. Carcass evaluation techniques at the North of Scotland College of Agriculture. Proceedings of a Symposium held at the Meat Research Institute, Bristol.Google Scholar
Kay, M., MacLeod, N. A. and Andrews, R. P. 1969. The effect of the physical form of fibre in diets differing in their energy concentration on the food intake and growth rate of early-weaned calves. Anim. Prod. 11: 286 (Abstr.).Google Scholar
Lamming, G. E., Swan, H. and Clarke, R. T. 1966. Studies on the nutrition of ruminants. I. Substitution of maize by milled barley in a beef fattening diet and its effect on performance and carcass quality. Anim. Prod. 8: 303–311.Google Scholar
Lamming, G. E., Swan, H. and Pickard, D. W. 1967. The substitution of urea for soya bean meal in a beef ration. Anim. Prod. 9: 270 (Abstr.).Google Scholar
MacDearmid, A. and Kay, M. 1968. The effects of different concentrate: roughage ratios on the growth rate and carcass composition of Friesian steers. Anim. Prod. 10: 233 (Abstr.).Google Scholar
Preston, T. R., Aitken, J. N., Whitelaw, F. G., MacDearmid, A., Philip, E. B. and MacLeod, N. A. 1963. Intensive beef production. 3. Performance of Friesian steers given low fibre diets. Anim. Prod. 5: 245–249.Google Scholar
Ruane, J. B. and Caffrey, P. 1966. Concentrate diets for ruminants. In Feeding for Beef Production published by the U.S. Feed Grains Council, pp. 44–59.Google Scholar
Swan, H. and Lamming, G. E. 1967. Studies on the nutrition of ruminants. II. The effect of level of crude fibre in maize-based rations on the carcass composition of Friesian steers. Anim. Prod. 9: 203–208.Google Scholar