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The Effect of Level of Available Carbohydrate, Offered as a Supplement to a Forage Based Diet, on Intake, Milk Yield and Milk Composition.

Published online by Cambridge University Press:  24 November 2017

Rosemary Mansbridge
Rosemary Mansbridge*
Affiliation:
ADAS Bridgets, Martyr Worthy, Winchester, Hants, S021 1AP
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Extract

It has been reported (Castlejon and Leaver 1990, Hill and Leaver 1991) that when offered as the sole forage intakes of urea treated whole crop cereals (UWCC) were high. However energy output in milk and liveweight change was less than expected from calculations of energy intake.

The level of crude protein (CP) in UWCC is high, typically in the range 200-300 g CP/kg DM. It has been suggested that a non-synchronous supply of available energy and rapidly available nitrogen to the rumen microorganisms was responsible for the low efficiency of utilization reported.

The work described here was carried out to determine whether the utilization of diets containing UWCC could be improved by increasing the supply of readily available carbohydrates to the rumen micro-organisms.

Type
Ruminant Metabolism
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1993: Winter meeting , March 1993 , pp. 183
Copyright
Copyright © The British Society of Animal Production 1993

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References

Castlejon, M. and Leaver, J.D. (1990) Anim. Prod. 50 : 584A.Google Scholar
Hill, J. and Leaver, J.D. (1991) Anim. Prod. 50 : 578A.Google Scholar