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A comparison of offering a high level of concentrates through an out-of-parlour feeder or within a complete diet using high merit cows

Published online by Cambridge University Press:  05 November 2021

D.C. Patterson ,
T. Yan  and
F.J. Gordon
D.C. Patterson
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, Northern Ireland
T. Yan
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, Northern Ireland
F.J. Gordon
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, Northern Ireland
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Extract

The genetic merit of the UK dairy herd is increasing rapidly. With cows of higher milk yield potential and higher nutrient requirements, the level of concentrate feeding is likely to increase. Previous studies have shown little benefit with complete diet feeding with cows of medium genetic merit at moderate levels of concentrate feeding (Agnew and Mayne, 1992; Agnew, Mayne and Doherty, 1996). The objective of the present study was to compare offering a high level of concentrates (mean 11.1 kg DM/day) to high genetic merit cows, either separately from the silage using an out-of-parlour (OP) feeder or within a complete diet (CD) system).

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 41
Copyright
Copyright © British Society of Animal Science 1997

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References

Agnew, K.W. and Mayne, C.S. 1992. Animal Production 54: 459 (abstr.).Google Scholar
Agnew, K.W., Mayne, C.S. and Doherty, J.G. 1996. Animal Science 63: 21–31.CrossRefGoogle Scholar