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The influence of level and pattern of allocation of concentrates given with silage ad libitum on the performance of lactating cows

Published online by Cambridge University Press:  24 November 2017

K. Aston ,
W.J. Fisher  and
R.D. Baker
K. Aston
Affiliation:
Institute of Grassland and Environmental-Research, Hurley, Maidenhead, Berks. SL6 SLR
W.J. Fisher
Affiliation:
IGER, Shinfield, Reading, Berks. RG2 9AQ
R.D. Baker
Affiliation:
Institute of Grassland and Environmental-Research, Hurley, Maidenhead, Berks. SL6 SLR
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Extract

The trial is one of a series in a project to develop a mathematical model to predict the consequences of changes to the food supply on yields of milk constituents. The objective of the trial was to measure the responses of winter-calved dairy cows to changes to the level or to the distribution within a level of concentrates given with grass silage ad libitum.

Ninety-eight British Friesian cows in their second or subsequent lactations with a mean calving date 6 December were used in a randomised block experiment. There were 7 treatment groups. Cows received on average 3, 6 or 9 kg concentrate dry matter (DM) per day over weeks 4 to 22 of lactation.

Type
Forage Utilisation
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1991 , March 1991 , pp. 94
Copyright
Copyright © The British Society of Animal Production 1991

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