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The effect of fish meal and soyabean meal supplements on milk production of autumn calving cows given ad libitum access to ryegrass silage

Published online by Cambridge University Press:  21 November 2017

R C Rae ,
A J Golightly ,
D R Marshall  and
C Thomas
R C Rae
Affiliation:
Imperial Chemical Industries PLC, Agricultural Division, Jealotts Hill Research Station, Bracknell, RG12 6EY
A J Golightly
Affiliation:
Imperial Chemical Industries PLC, Agricultural Division, Jealotts Hill Research Station, Bracknell, RG12 6EY
D R Marshall
Affiliation:
Imperial Chemical Industries PLC, Agricultural Division, Jealotts Hill Research Station, Bracknell, RG12 6EY
C Thomas
Affiliation:
Animal and Grassland Research Institute, Hurley, Maidenhead, SL6 5LR
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Extract

When grass silage is available ad libitum, compound feeds depress the intake of silage by cattle. Castle and Watson (1976) and Gill and England (1984) reported that silage intake was not depressed when protein supplements rather than cereals were given to dairy and beef cattle, respectively. The aim of the present trial was to examine protein supplements as alternatives to cereal based compounds to increase the milk yield of dairy cows without reducing silage intake.

Type
Dairy Cow Feeding
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1986 , March 1986 , pp. 9
Copyright
Copyright © The British Society of Animal Production 1986

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References

Castle, M E and Watson, J M (1976). Silage and Milk Production. A comparison between barley and groundnut cake as supplements to silage of high digestibility. J. Brit. Grassld. Soc. 31, 191–195.Google Scholar
Gill, M and England, P (1984). Effect of degradability of orotein supplements on voluntary intake and nitrogen retention in young cattle fed grass silage. Anim. Prod. 39, 31–36.Google Scholar