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The utilization of the energy of artificially dried grass prepared in different ways

Published online by Cambridge University Press:  27 March 2009

F. W. Wainman ,
K. L. Blaxter  and
J. S. Smith
F. W. Wainman
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
K. L. Blaxter
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
J. S. Smith
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
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Summary

Sheep were given artificially dried grass either in the long form or as pellets, and their energy retention measured. Experiments were made both at the maintenance level of feeding and when feed was offered ad libitum. An analysis of the effects of preceding and current daily feed consumption on heat production was made and both exact and approximate methods of estimating the mean food intake to which a determination of heat production should be referred, are given. Pelleting the dried grass increased voluntary intake of dry matter by 27%, and the intake above maintenance by 59% The metabolizable energy of the grass was depressed by pelleting but the net availability of metabolizable energy for production was 52% for pellets and 40% for long material. The percentage of the gross energy supplied above maintenance which was retained was 28% greater for pellets than for long dried grass. The results show that energy retention of the sheep was almost doubled when the grass was pelleted.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 78 , Issue 3 , June 1972 , pp. 441 - 447
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Blaxter, K. L. & Boyse, A. W. (1970). A new method of expressing the nutritive value of feeds as sources of energy. In Energy Metabolism of Farm Animals. Proc. 5th Int. Symp. Energy Metab., pp. 9–13. Publication No. 13.Google Scholar
Blaxter, K. L. & Graham, N. McC. (1955). Plano of nutrition and starch equivalents. J. agric. Sci., Camb. 46, 292–306.Google Scholar
Blaxter, K. L. & Graham, N. McC. (1956). The effect of the grinding and cubing process on the utilization of the energy of dried grass. J. agric. Sci., Camb. 47, 207–17.CrossRefGoogle Scholar
Blaxter, K. L., Wainman, E. W., Dewey, P. J. S., Davidson, J., Denebley, H. & Gunn, J. B. (1971). Tho effects of nitrogenous fertilizer on the nutritive value of artificially dried grass. J. agric. Sci., Camb. 76, 307–19.CrossRefGoogle Scholar
Blaxter, K. L., Wainman, F. W. & Wilson, R. S. (1961). The regulation of food intake by sheep. Anim. Prod. 3, 51–61.Google Scholar
Blaxter, K. L. & Wilson, R. S. (1963). The assessment of a crop husbandry technique in terms of animal production. Anim. Prod. 5, 27–42.Google Scholar
Greenhalgh, J. F. D. & Wainman, F. W. (1972). The nutritional value of processed roughages for fattening cattle and sheep. Proc. Br. Soc. Anim. Prod. (In the Press.)Google Scholar
Meyer, J. H., Gaskill, R. L., Stoewsand, G. S. & Weir, W. C. (1959). Influence of pelleting on the utilization of alfalfa. J. anim. Sci. 18, 336–46.CrossRefGoogle Scholar
Minson, D. J. (1963). The effect of pelleting and wafering on the feeding value of roughage – a review. J. Br. Orassld Soc. 18, 39–44.CrossRefGoogle Scholar
Paladines, O. L., Reid, J. T., Van Niekerk, B. D. H. & Bensadoun, A. (1964). Energy utilization by sheep as influenced by the physical form, composition and level of intake of diet. J. Nutr. 83, 49–59.Google Scholar
Wainman, F. W., Smith, J. S. & Blaxteb, K. L. (1971). Voluntary intake and energy metabolism of sheep fed chopped dried grass and the same material milled and pelleted. Proc. Nutr. Soc. 30, 23–24.4.Google Scholar