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The effect of rate of inclusion of processed, urea-treated whole-crop wheat on the intake and milk production and apparent digestibility in dairy cows

Published online by Cambridge University Press:  23 November 2017

A.J. Bond ,
R.J. Readman ,
J.A. Huntington  and
L.A. Sinclair
A.J. Bond*
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, UK
R.J. Readman
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, UK
J.A. Huntington
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, UK
L.A. Sinclair
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, UK
*
Email: [email protected]
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Extract

The development of a forage processor that grinds the grains in whole-crop wheat (WCW) prior to ensiling has been shown to improve whole tract digestibility of the starch component and improve the efficiency of forage utilisation (Jackson et al. 2004). This allows wheat to be harvested over a much wider harvest window than was previously possible. Further work (Bond et al., 2004) demonstrated that animals fed processed, urea-treated WCW harvested at 700 g dry matter (DM) per kg had a significantly higher milk yield than those fed fermented WCW harvested at approximately 450 g DM/kg, or urea-treated WCW harvested at approximately 850 g DM/kg. Previously, processed, urea-treated WCW for dairy cows has been included at 0.67 of the forage DM intake, although, the optimal inclusion rate of processed WCW is unclear. The objective of the current experiment was to investigate the effect of rate of inclusion of processed, urea-treated WCW on the performance and apparent digestibility in dairy cows.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 22
Copyright
Copyright © The British Society of Animal Science 2005

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References

Bond, A.J., Readman, R.J. Huntington, J.A. and Sinclair, L.A. 2004. The effect of stage of maturity and method of preservation of processed whole-crop wheat on the intake and milk production in dairy cows. Proc. Winter Meeting BSAS. p49.Google Scholar
Jackson, M.A., Readman, R.J. Huntington, J.A. and Sinclair, L.A. 2004. The effects of processing at harvest and cutting height of urea-treated whole-crop wheat on performance and digestibility in dairy cows. Animal Science, 78: 467–476.CrossRefGoogle Scholar