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The effect of abomasal infusion of urea on nitrogen retention in goats

Published online by Cambridge University Press:  27 March 2009

T. Fujihara
Affiliation:
Faculty of Agriculture, Kagawa University, Kagawa 761-07 Japan
I. Tasaki
Affiliation:
Faculty of Agriculture, Nagoya University, Nagoya 464 Japan

Extract

There is evidence that a large volume of saliva containing a significant quantity of urea is poured into the rumen, and also that blood urea is diffused into the rumen through the ruminal epithelium (Houpt, 1959; Weston & Hogan, 1967). Egan (1965) reported that, with sheep fed a low protein cereal hay, cellulose digestion in the rumen was increased by abomasal urea infusion. Furthermore, the utilization of recycled urea nitrogen has been investigated in sheep (McIntyre, 1971) and cattle (Vercoe, 1969) using the intraruminal and intravenous infusion techniques. The objective of the present experiment was to determine whether or not the abomasal administration of urea to adult goats fed a low quality hay would influence the nitrogen retention in the body.

Type
Short Note
Copyright
Copyright © Cambridge University Press 1975

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References

REFERENCES

Egan, A. R. (1965). The fate and effects of duodenally infused casein and urea nitrogen in sheep fed on a low-protein roughage. Australian Journal of Agricultural Research 16, 169–77.CrossRefGoogle Scholar
Hawk, P. B., Oser, B. L. & Summerson, W. H. (1954). Practical Physiological Chemistry. New York: McGraw-Hill.Google Scholar
Houpt, T. R. (1959). Utilization of blood urea in ruminants. American Journal of Physiology 197, 115–20.CrossRefGoogle ScholarPubMed
Little, C. O. & Mitchell, G. E. Jr. (1967). Abomasal vs oral administration of proteins to wethers. Journal of Animal Science 26, 411–13.CrossRefGoogle Scholar
McIntyre, K. H. (1971). The effects of continuous intravenous and intraruminal infusions of urea on nitrogen metabolism in sheep. Australian Journal of Agricultural Research 22, 429–41.CrossRefGoogle Scholar
Okuda, H. & Fujii, S. (1966). Direct method for photometric determination of blood ammonia. Saishin Igaku 21, 622–7. (In Japanese.)Google Scholar
Ukai, A., Fujihara, T., Shibata, F. & Tasaki, I. (1973). Abomasal fistula technique for goats. Japanese Journal of Zootechnical Science 44, 625–7.Google Scholar
Vercoe, J. E. (1969). The transfer of nitrogen from blood to the rumen in cattle. Australian Journal of Agricultural Research 20, 191–7.CrossRefGoogle Scholar
Weston, R. H. & Hogan, J. P. (1967). The transfer of nitrogen from the blood to the rumen in sheep. Australian Journal of Biological Science 20, 967–73.CrossRefGoogle Scholar
Yoshida, J., Nakame, K. & Nakamura, R. (1957). Studies on the toxicity of urea and its control. II. Toxicity of ammonium salts and urea in rabbits and goats. Japanese Journal of Zootechnical Science 28, 185–91. (In Japanese.)Google Scholar