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Effect of oestradiol 17β and zeranol at turnout and yarding with and without trenbolone at yarding on liveweight gain and carcase composition in 18-month beef steers

Published online by Cambridge University Press:  22 November 2017

J R Southgate ,
A R Peters ,
M Grantley-Smith ,
D W Jones ,
S M Dixon  and
C B Mallinson
J R Southgate
Affiliation:
Meat and Livestock Commission, PO Box 44, Queensway House, Bletchley, Milton Keynes MK2 2EF
A R Peters
Affiliation:
Meat and Livestock Commission, PO Box 44, Queensway House, Bletchley, Milton Keynes MK2 2EF
M Grantley-Smith
Affiliation:
Meat and Livestock Commission, PO Box 44, Queensway House, Bletchley, Milton Keynes MK2 2EF
D W Jones
Affiliation:
Meat and Livestock Commission, PO Box 44, Queensway House, Bletchley, Milton Keynes MK2 2EF
S M Dixon
Affiliation:
Institute for Research on Animal Diseases, Compton, nr Newbury, Berks
C B Mallinson
Affiliation:
Institute for Research on Animal Diseases, Compton, nr Newbury, Berks
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Extract

The effect of growth promoting implants on liveweight gain in steers is well documented. However, there is less information available on their effects on carcases. Farm trials were conducted using steers either unimplanted as controls, or implanted with oestradiol 17β ([C]ompudose 365; Elanco products) and zeranol ([R]algro; Crown Chemicals) with and without trenbolone ([F]inaplix; Hoechst) . Carcase studies were carried out on a sample of animals.

Type
Consumer Attitudes and Heat Composition
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1986 , March 1986 , pp. 93
Copyright
Copyright © The British Society of Animal Production 1986

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