Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-05T14:56:22.784Z Has data issue: false hasContentIssue false
  • English
  • Français

A method of including urea in whole grains

Published online by Cambridge University Press:  27 March 2009

E. R. Ørskov ,
R. Smart  and
A. Z. Mehrez
E. R. Ørskov
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
R. Smart
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
A. Z. Mehrez
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
Get access Rights & Permissions [Opens in a new window]

Summary

A method of including urea into whole grains is described. The whole grains were found to absorb completely a saturated solution of urea.

The method gave the different cereals examined (barley, oats, wheat and maize) a homogeneouis distribution of urea and increased the voluntary intake of whole grains by lambs. The evolution of NH3 in the rumen liquor was slightly slower when urea was absorbed into the grains than when it was included as urea crystals. The N content in the urea-treated grain was not changed after 6 months of storage.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 83 , Issue 2 , October 1974 , pp. 299 - 302
Copyright
Copyright © Cambridge University Press 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Davidson, J., Mathieson, J. & Boyne, A. W. (1970). The use of automation in determining nitrogen by the Kjeldahl method with final calculation by computer. The Analyst 95, 181–93.Google Scholar
Marsh, W. H., Fingerhut, B. & Miller, H. (1965). Automated and manual direct methods for the determination of blood urea. Clinical Chemistry 11, 624–27.Google Scholar
Møller, P. D. (1972). Undersøgelser over retarderet NH3 frigørelse; vommen ved forskellig behandling af byg og urea. Landokonomisk forsøgslaboratoriums Arbog, p. 276. Copenhagen.Google Scholar
Ørskov, E. R., Fraser, C. & Gordon, J. G. (1974). The effect of processing of cereals on rumen fermentation, digestibility, rumination time and firmness of subcutaneous fat in lambs. British Journal of Nutrition (In Press).CrossRefGoogle ScholarPubMed
Ørskov, E. R., Fraser, C. & McDonald, I. (1972). Digestion of concentrate in sheep. 4. The effect of urea on digestion, nitrogen retention and growth in young lambs. British Journal of Nutrition 27, 491–501.Google Scholar
Whitehead, R., Cooke, G. H. & Chapman, B. T. (1967). Problems associated with the continuous monitoring of ammoniacal nitrogen in a river water. In Automation in Analytical Chemistry II, 377–80. New York, U.S.A.: Medical Incorporated.Google Scholar