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Prediction of the intake potential of grass silage in the supplemented diets of lactating dairy cows

Published online by Cambridge University Press:  20 November 2017

B. F. McNamee
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K.
V. B. Woods
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K.
D. J. Kilpatrick
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K.
F. J. Gordon
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K.
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Extract

In the majority of farming systems in Ireland and the UK, grass silage is supplemented with varying types and levels of concentrates when offered to lactating dairy cows (Keady et al., 1998). This supplementation results in a reduction in the intake of the silage. The aim of the current study was therefore to use data from the literature to develop empirical models that would allow the prediction of grass silage dry matter intake with increasing amounts of concentrate intake.

Type
Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2002

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References

Keady, T. W. J., Mayne, C. S. and Marsden, M. 1998. The effects of concentrate energy source on silage intake and animal performance with lactating dairy cows offered a range of grass silages. Anim. Sci. 66: 2133.Google Scholar
Mayne, C. S., Agnew, R. E., Patterson, D. C., Steen, R. W. J., Gordon, F. J., Kilpatrick, D. J. and Unsworth, E. F., 1995. An examination of possible interactions between silage type and concentrate composition on the intake characteristics of grass silage offered to growing cattle and dairy cows. Proc. British Soc. Anim. Sci. p21.Google Scholar
Patterson, D. C., Yan, T., Gordon, F. J. and Kilpatrick, D. J., 1998. Effects of bacterial inoculation of unwilted and wilted grass silages. 2. Intake, performance and eating behaviour by dairy cattle. J. Agric. Sci., Camb., 131, 113119.Google Scholar