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The performance and changes in body composition of steers offered cut grass or grazing following three patterns of nutrition in winter

Published online by Cambridge University Press:  02 September 2010

R. D. Baker  and
M. J. Gibb
R. D. Baker
Affiliation:
AFRC Institute of Grassland and Environmental Research, Hurley, Maidenhead SL6 5LR
M. J. Gibb
Affiliation:
AFRC Institute of Grassland and Environmental Research, Hurley, Maidenhead SL6 5LR
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Abstract

Friesian steer cahes were reared over winter on a silage (S) or on a silage plus concentrate (SC) diet to provide cattle of the same live weight, but of different ages for a comparison of grazing and feeding cut herbage indoors during the summer. A further group received fish meal (SF) as a supplement in an attempt to provide cattle of the same age as the S group, but of different body composition. Although supplementation improved the daily deposition of fat and protein, it did not lead to differences in body composition at the end of the winter period. The ratio of protein to fat deposition and the efficiencies of conversion were low for all groups, but they did improve as the level of supplementation increased.

There was no carry-over effect of winter treatment on summer performance. However, housed cattle deposited significantly more fat.

The trial demonstrated the inefficient use of nitrogen from silage with poor fermentation characteristics and the predisposition of cattle on such diets to low protein to energy retention. Whilst supplementation altered this balance, higher levels than given would be needed to have a marked effect. It was also concluded that the performance of housed cattle as an indicator of that of grazing cattle, is likely to be misleading because lower activity reduces maintenance requirement and leads to greater fat deposition.

Keywords

body compositiongrazinggrowthsilagesteers
Type
Research Article
Information
Animal Science , Volume 60 , Issue 3 , June 1995 , pp. 419 - 427
Copyright
Copyright © British Society of Animal Science 1995

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References

Agricultural Research Council. 1965. The nutrient requirements of farm livestock. No. 2. Ruminants, p. 264. Agricultural Research Council, London.Google Scholar
Agricultural Research Council. 1984. The nutrient requirements of ruminant livestock, suppl. no. 1. Commonwealth Agricultural Bureaux, Slough.Google Scholar
Association of Official Agricultural Chemists, 1965. Official methods of analysis of the Association of Official Agricultural Chemists. 10th ed.Association of Official Agricultural Chemists, Washington, DC.Google Scholar
Baker, R. D., Gibb, M. J. and Young, N. E. 1984. Fat and protein retention by steers on silage based diets and subsequent performance at grass. Proceedings of the seventh silage conference, Belfast, pp. 51–52.Google Scholar
Baker, R. D., Young, N. E. and Laws, J. A. 1985. Changes in the body composition of cattle exhibiting compensatory growth and the modifying effects of grazing management. Animal Production 41: 309–321.Google Scholar
Baker, R. D., Young, N. E. and Laws, J. A. 1992. The effect of diet in winter on the body composition of young steers and subsequent performance during the grazing season. Animal Production 54: 211–219.Google Scholar
Cammell, S. B., Beever, D. E., Skelton, K. V. and Spooner, M. C. 1981. The construction of open-circuit calorimeters for measuring gaseous exchange and heat production in sheep and young cattle. Laboratory Practice 30: 115–119.Google Scholar
Faichney, G. J. 1975. The use of markers to partition digestion within the gastro-intestinal tract of ruminants. In Digestion and metabolism in the ruminant (ed. McDonald, I. W. and Warner, A. C. I.), pp. 277–291. University of New England, Armidale, NSW.Google Scholar
Gibb, M. J. and Baker, R. D. 1987. Performance of young steers offered silage or thermo-ammoniated hay with or without a fish-meal supplement. Animal Production 45: 371–381.Google Scholar
Gibb, M. J. and Baker, R. D. 1989. Performance and body composition of young steers given stack-ammoniated hay with or without a supplement or untreated hay with a supplement. Animal Production 48: 341–351.Google Scholar
Gibb, M. J. and Baker, R. D. 1991. Compensatory growth and body composition changes in grazing steers following silage feeding without or with a supplement of fish meal and monensin. Animal Production 52: 237–247.Google Scholar
Gill, M., Beever, D. E., Buttery, P. J., England, P., Gibb, M. j. and Baker, R. D. 1987. The effect of oestradiol-17β implantation on the response in voluntary intake, liveweight gain and body composition, to fishmeal supplementation of silage offered to growing calves, Journal of Agricultural Science, Cambridge 108: 9–16.Google Scholar
Le Du, Y. L. P. and Penning, P. D. 1982. Animal based techniques for estimating herbage intake. In Herbage intake handbook (ed. Leaver, J. D.), pp. 37–75. British Grassland Society, Hurley.Google Scholar
Moran J. B. and Holmes, W. 1978. The application of compensatory growth in grass/cereal beef production systems in the United Kingdom. World Review of Animal Production 14: (2), 65–73.Google Scholar
National Research Council. 1978. Nutrient requirements of dairy cattle. 5th rev. ed. National Academy of Sciences, Washington, DC.Google Scholar
O'Donovan, P. B. 1984. Compensatory gain in cattle and sheep. Nutrition Abstracts and Reviews — Series B 54: 389–410.Google Scholar
Sanderson, R. and Thomas, C. 1987. Fishmeal as a supplement to grass silage fed to young cattle. Proceedings of the eighth silage conference, AFRC Institute for Grassland and Animal Production, Hurley, pp. 163–164 (abstr.).Google Scholar
Thomas, C., Gibbs, B. G., Beever, D. E. and Thurnham, B. R. 1988. The effect of date of cut and barley substitution on gain and on the efficiency of utilization of grass silage by growing cattle. 1. Gains in Hve weight and its components. British journal of Nutrition 60: 297–306.Google Scholar
Thomas, C. and Thomas, P. C. 1986. Factors affecting the nutritive value of grass silages. In Recent advances in animal nutrition — 1986 (ed. Haresign, W.), pp. 223–256. Butterworths, London.Google Scholar
Wilson, P. N. and Osbourn, D. F. 1960. Compensatory growth after undernutrition in mammals and birds. Biological Reviews 35: 324–363.Google Scholar
Wright, I. A., Russel, A. J. F. and Hunter, E. A. 1986. The effect of winter food level on compensatory growth of weaned, suckled calves grazed at two sward heights. Animal Production 43: 211–223.Google Scholar
Wright, I. A., Russel, A. J. F. and Hunter, E. A. 1989. Compensatory growth in cattle grazing different vegetation types. Animal Production 48: 43–50.CrossRefGoogle Scholar