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A note on the apparent digestibility of energy and protein in dried poultry excreta

Published online by Cambridge University Press:  02 September 2010

B. G. Lowman  and
D. W. Knight
B. G. Lowman
Affiliation:
Department of Agriculture, The University, Reading
D. W. Knight
Affiliation:
Thornber Brothers Ltd, Mytholmroyd, Halifax, Yorkshire
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Summary

The nutritional value of dried poultry excreta was investigated by determining the apparent digestibility of dry matter, organic matter, nitrogen, energy and copper in five diets containing 0 to 100% of this feed. Dried poultry excreta supplied 20·21% apparently digestible crude protein and approximately 1·57 or 1·74 Mcal of metabolizable energy per kg dry matter.

The copper in dried poultry excreta was found to be less digestible than the copper in barley. It is concluded that, as far as copper levels are concerned, dried poultry excreta are safe for ruminants, and are a source ofcheap protein. More detailed work is needed to determine the metabolizable energy of the material accurately.

Type
Research Article
Information
Animal Production , Volume 12 , Issue 3 , August 1970 , pp. 525 - 528
Copyright
Copyright © British Society of Animal Science 1970

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References

REFERENCES

Agricultural Research Council. 1965. The Nutrient Requirements of Farm Livestock. No. 2. Ruminants. Agricultural Research Council, London.Google Scholar
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Dick, A. T. 1954. Studies on the assimilation and storage of copper in crossbred sheep. Aust. J. agric. Res. 5: 511–519.CrossRefGoogle Scholar
Sturkie, P. D. 1965. Avian Physiology. 2nd ed.Baillière, Tindall and Cassell, London.Google Scholar