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A note on the growth and carcass characteristics of castrated male pigs fed on a ration containing diethylstilboestrol and methyltestosterone

Published online by Cambridge University Press:  02 September 2010

N. Walker
N. Walker
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down
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Summary

A control diet was compared with a diet containing 2 mg diethylstil-boestrol (DES) plus 2 mg methyltestosterone (MT) per kg air-dry feed, the hormone treatment extending either from 20 to 84 kg live weight or from 50 to 84 kg live weight. The experiment contained 20 blocks, each of 3 littermate castrated male pigs individually penned and fed to a restricted scale. Hormone supplementation had no effect on growth performance and significantly affected car-cass characteristics only when given for the longer period. Killing-out percentage, backfat thickness and percentage subcutaneous fat plus skin in the gammon joint were reduced and carcass length, percentage bone and percentage lean in the gammon joint were increased when the supplement was given over the longer period.

Type
Research Article
Information
Animal Production , Volume 14 , Issue 2 , April 1972 , pp. 255 - 257
Copyright
Copyright © British Society of Animal Science 1972

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References

REFERENCES

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