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A note on the digestibility by sheep of hulls from the field bean (vicia faba l)

Published online by Cambridge University Press:  02 September 2010

D. G. Edwards ,
I. F. Duthie ,
Barbara M. Rogers  and
Emyr Owen
D. G. Edwards
Affiliation:
The Lord Rank Research Centre, High Wycombe, Bucks
I. F. Duthie
Affiliation:
The Lord Rank Research Centre, High Wycombe, Bucks
Barbara M. Rogers
Affiliation:
The Lord Rank Research Centre, High Wycombe, Bucks
Emyr Owen
Affiliation:
Department of Agriculture, University of Reading
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Summary

The digestibility of a feed containing hull material prepared mechanically from Throws MS field bean (Viciafaba L) was determined in a 12-day balance trial with sheep. The pelleted feed contained 62 % hulls and 38 % of a concentrate mixture, and was given at a maintenance level. The mean digestibility coefficients of the feed were for dry matter, 66·3; organic matter, 68·2; nitrogen, 65·7; crude fibre, 59·4; and energy, 65·5%.

The coefficients for the bean hulls themselves, estimated by assuming coefficients for the concentrates, were dry matter, 59·6; organic matter, 61·0; nitrogen, 58·2; crude fibre, 60·3; and energy, 59·9%. By assuming a value of 2·515 Mcal/kg for the metabolizable energy of the concentrates, the metabolizable energy of the bean hulls was calculated to be between 2·00 and 2·10 Mcal/kg.

Digestibility coefficients for the bean hulls determined in vitro were found to agree with those determined in vivo.

Type
Research Article
Information
Animal Production , Volume 17 , Issue 3 , December 1973 , pp. 329 - 332
Copyright
Copyright © British Society of Animal Science 1973

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References

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