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Biuret and urea in maintenance and production diets of cattle

Published online by Cambridge University Press:  27 March 2009

A. C. Kondos  and
B. Mutch
A. C. Kondos
Affiliation:
Department of Animal Industries, Queensland Agricultural College, Lawes, Queensland, Australia
B. Mutch
Affiliation:
Dow Chemical (Austr.) Ltd
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Summary

A series of five field trials with cattle was carried out to study the comparative efficiency of utilization of urea and biuret in various maintenance and production nutritional situations. It was shown that in maintenance diets with energy intake above 8 Meal/head/day and where half of the nitrogen requirements of the animals was contributed by one of the two non-protein nitrogen (NPN) sources, biuret was utilized 30% more efficiently than urea. No difference in the degree of utilization of urea or biuret was apparent when the energy was reduced to 6·7 Meal/head/day. On the other hand, a high intake of nitrogen in production rations had a masking effect on the nitrogen contribution of the NPN sources and no significant differences in bodyweight gain were recorded.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 85 , Issue 2 , October 1975 , pp. 359 - 368
Copyright
Copyright © Cambridge University Press 1975

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