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Performance of friesian bulls fed intensively with compound feeds

Published online by Cambridge University Press:  22 November 2017

J.S. Blake ,
W.S. Thickett  and
T.D.A. Brigstocke
J.S. Blake
Affiliation:
BOCM Si1cock Limited, Basing View, Basingstoke, Hampshire RG21 2EQ
W.S. Thickett
Affiliation:
BOCM Si1cock Limited, Basing View, Basingstoke, Hampshire RG21 2EQ
T.D.A. Brigstocke
Affiliation:
BOCM Si1cock Limited, Basing View, Basingstoke, Hampshire RG21 2EQ
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Extract

Over a period of 2 years from 1982 to 1984, six feeding trials were carried out on a total of 307 Friesian bulls to investigate the effects of energy and protein levels in compound feed. All animals were fed ad-lib compound diets with free access to barley straw and water. In four of the six trials the bulls were implanted with Ralgro (zeranol, Crown Chemical Company Limited), once at the start of the trial and again after 90 days. The various dietary treatments in the different trials are given below. Theoretical undegradable dietary protein was calculated using the known degradability of raw materials in the compound feed.

Type
Dairy and Beef Feeding
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1986 , March 1986 , pp. 110
Copyright
Copyright © The British Society of Animal Production 1986

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References

Agricultural Research Council (1980) The Nutrient Requirements of Ruminant Livestock Pub. CAB.Google Scholar