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The effects of processed whole crop wheat, maize silage and supplement type to whole crop wheat on the performance of dairy cows

Published online by Cambridge University Press:  20 November 2017

M. A. Jackson ,
L. A. Sinclair ,
R. Readman  and
J. A. Huntington
M. A. Jackson*
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K.
L. A. Sinclair
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K.
R. Readman
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K.
J. A. Huntington
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K.
*
E-mail: [email protected]
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Extract

Previous work has shown that processing whole crop wheat (WCW) at harvest increases starch digestibility (Jackson et al., 2002). However, no effect was seen in terms of milk yield. It has been suggested that the provision of a sugar source might utilise the high rumen ammonia levels found in animals receiving urea-treated whole crop wheat (Abdalla et al., 1999). Sources such as lactose have also been shown to reduce rumen protozoa numbers, increase bacterial protein supply and result in a more stable rumen pH, particularly with high starch diets (Hussain and Miller, 1999). Additionally, to date, processed whole crop wheat has not been evaluated against other alternative forages. The objective of the current experiment was, therefore, to compare processed urea treated whole crop wheat with maize silage and determine the effects of carbohydrate supplementation of whole crop wheat on intake and milk production in dairy cows.

Type
Cattle Nutrition
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 117
Copyright
Copyright © The British Society of Animal Science 2003

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References

Abdalla, A. L, Sutton, J. D, Phipps, R. H. and Humphries, D. J. 1999, . Digestion in the rumen of lactating dairy cows given mixtures of urea-treated whole-crop wheat and grass silage. Animal Science 69: 203–212.CrossRefGoogle Scholar
Hussain, A. and Miller, E. L. 1999. Effect of supplementation of sucrose and lactose with sodium bicarbonate on rumen metabolism and microbial protein synthesis in sheep. Proc. Winter Meeting of BSAS, 28.Google Scholar
Jackson, M. A, Sinclair, L. A, Readman, R and Huntington, J. 2002. The effect of forage grinding and cutting height of urea treated whole crop wheat on the milk production and diet digestibility in dairy cows. Proc. Winter Meeting of BSAS, 13.Google Scholar