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The estimation of metabolizable energy in maize and in wheat by-products using chickens, with observations on problems of prediction from chemical composition

Published online by Cambridge University Press:  27 March 2009

J. Davidson
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
S. Graham
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB

Summary

In a study with chicks, the metabolizable energy (ME) values of two maize and two wheat offal samples were estimated using regression procedures in which the ME of the fishmeal supplement, common to all diets, was first calculated.

From chemical analysis, the wheat offal samples would have been expected to yield at least as much ME as oats, but results fell short of expectation by as much as a quarter in the case of one sample of wheat middlings. The significance of these findings is discussed.

By comparison with previously determined ME values on the same samples fed to sheep, the chicken tended to metabolize more of the maize energy and less of the wheat offal energy.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1981

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References

REFERENCES

Agricultural Research Council (1975). The Nutrient Requirements of Farm Livestock, no. 1 Poultry. London: Agricultural Research Counoil.Google Scholar
Bolton, W. (1955). The digestibility of the carbohydrate complex by birds of different ages. Journal of Agricultural Science, Cambridge 46, 420424.CrossRefGoogle Scholar
Bolton, W. (1962). Energy value of poultry foods and complete diets. Proceedings Twelfth World's Poultry Congress, pp. 3842.Google Scholar
Carpenter, K. J. & Clegg, K. M. (1956). The metabolizable energy of poultry feeding stuffs in relation to their chemical composition. Journal of the Science of Food and Agriculture 7, 4551.CrossRefGoogle Scholar
Davidson, J., Banfield, C. G., Duguid, J. G. W. & Leitch, E. G. (1978). The measurement of metabolisable energy in samples of oats, barley and wheat using chicks. Journal of the Science of Food and Agriculture 29, 339344.Google Scholar
Davidson, J., Hepburn, W. R., Mathieson, J. & Pullar, J. D. (1968). Comparisons of heat loss from young cockerels by direct measurement and by indirect assessment involving body analysis. British Poultry Science 9, 93109.CrossRefGoogle ScholarPubMed
Davidson, J., McDonald, I., Mathieson, J. & Williams, R. B. (1961). Utilisation of dietary energy by poultry. Journal of the Science of Food and Agriculture 12, 425439.CrossRefGoogle Scholar
Guillaume, J. & Summers, J. D. (1970). Maintenance of energy requirement of the rooster and influence of plane of nutrition on metabolizable energy. Canadian Journal of Animal Science 50, 363369.CrossRefGoogle Scholar
Macrae, J. C. & Armstrong, D. G. (1968). Enzyme method for determination pf a-linked glucose polymers in biological materials. Journal of the Science of Food and Agriculture 19, 578581.Google Scholar
National Research Council (1969). United States – Canadian Tables of Feed Composition, Publication 1684. Washington D.C.: National Academy of Soienoos.Google Scholar
Rowett Besearch Institute (1976). Feedingstuffs Evaluation Unit. First Report 1975. Edinburgh: Department of Agriculture for Scotland.Google Scholar
Rowett Besearch Institute (1978). Annual Report, pp. 56, 59. Aberdeen: Bowett Besearch Institute.Google Scholar
Saunders, R. M., Walker, H. G. & Kohler, G. O. (1969). Aleurone oells and the digestibility of wheat mill feeds. Poultry Science 48, 14971503.CrossRefGoogle Scholar
Sibbald, I. R. (1975). The effect of level of feed intake on metabolizable energy values measured with adult roosters. Poultry Science 54, 19901997.CrossRefGoogle ScholarPubMed
Sibbald, I. R., Czarnocki, J., Slinger, S. J. & Ashton, G. C. (1963). The prediction of the metabolizable energy oontent of poultry feedingstuffs from a knowledge of their chemioal composition. Poultry Science 42, 486492.CrossRefGoogle Scholar
Sibbald, I. R. & Price, K. (1977). True and apparent metabolizable energy values for poultry of Canadian wheats and oats measured by bioassay and predicted from physical and chemical data. Canadian Journal of Animal Science 57, 365374.Google Scholar
Wainman, F. W., Dewey, P. J. S. & Boyne, A. W. (1979). Feedingstuffs Evaluation Unit Second Report 1978. Edinburgh: Department of Agriculture and Fisheries for Scotland.Google Scholar