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A note on the utilization of urea by Sudan desert sheep

Published online by Cambridge University Press:  02 September 2010

H. M. Hassan  and
A. M. S. Mukhtar
H. M. Hassan
Affiliation:
Department of Animal Husbandry, University of Khartoum, Sudan
A. M. S. Mukhtar
Affiliation:
Department of Animal Husbandry, University of Khartoum, Sudan
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Summary

Sixty-four young male Sudan desert lambs were group-fed for 87 days on four diets, all containing approximately 10% crude protein. The four diets contained 0, 1·3, 1·7 and 2·7% urea, respectively.

Average daily gains were 0·15, 0·14, 0·14 and 0·13 kg; feed conversion ratios (kg of feed required to produce 1 kg live-weight gain) were 7·26, 8·14, 8·92 and 7·92; dressing percentages were 43·6, 42·1, 44·1 and 42·3.

Digestibility trials with lambs fed on diets with 0 or 2·7% urea gave higher digestibility coefficients for crude fibre and nitrogen-free extract for the urea-supplemented lambs. Crude protein digestibility and nitrogen retention values were lower for urea-supplemented lambs.

Type
Research Article
Information
Animal Production , Volume 13 , Issue 1 , February 1971 , pp. 201 - 204
Copyright
Copyright © British Society of Animal Science 1971

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References

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