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Blood-urea concentration in relation to protein utilization in the ruminant

Published online by Cambridge University Press:  27 March 2009

D. Lewis
D. Lewis
Affiliation:
A.R.C. Institute of Animal Physiology, Babraham, Cambridge
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Extract

1. It has been shown that under a given feeding régime the concentration of blood urea in the sheep is constant.

2. Changes in the diet lead to different levels of blood-urea concentration which can be correlated with different rumen-ammonia concentrations; the change in blood-urea concentration follows increases or decreases in rumen ammonia after a delay period of 4–8 hr.

3. Fluctuations in blood-urea concentration in the sheep are not primarily due to changes in the overall nitrogen intake.

4. It is suggested that these findings might form the basis of a supplementary test in assessing the value of the protein in a foodstuff for ruminants.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 48 , Issue 4 , April 1957 , pp. 438 - 446
Copyright
Copyright © Cambridge University Press 1957

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References

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