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Urea phosphate and mono-ammonium phosphate as dietary supplements for sheep fed diets inadequate in phosphorus and nitrogen

Published online by Cambridge University Press:  27 March 2009

G. Fishwick  and
R. G. Hemingway
G. Fishwick
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow
R. G. Hemingway
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow
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Summary

Growing wether sheep in metabolism cages were fed a low phosphorus diet (0–7 g P/day) and providing 16 g N/day supplemented with either urea phosphate, monoammonium phosphate or dicalcium phosphate and with appropriate additions of urea to give equivalent additional intakes of phosphorus (1–75 g P/day) and nitrogen (4–6 g N/day).

All three sources of phosphorus and nitrogen resulted in similar and significantly improved phosphorus and nitrogen retentions. There were also very similar effects on urine outputs of phosphorus and nitrogen and on the concentrations of phosphorus and urea in the blood of the sheep.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 81 , Issue 1 , August 1973 , pp. 139 - 143
Copyright
Copyright © Cambridge University Press 1973

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