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A note on the reproductive performance of ewes of different genotypes following active immunization against androstenedione

Published online by Cambridge University Press:  02 September 2010

S. M. Rhind
S. M. Rhind
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian EH26 0PY
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Extract

It has been demonstrated with Australian breeds and conditions that active immunization of ewes against androstenedione can induce increases in lambing rate of 20 or more lambs per 100 ewes mated (Cox, Wilson, Scaramuzzi, Hoskinson, George and Bindon, 1982; Geldard and Scaramuzzi, 1983). More recent work (Geldard, 1985) involving active immunization against androstenedione (Fecundin®, Coopers Animal Health, UK) has shown that similar results can also be achieved with some United Kingdom breeds. However, the successful application of this product in practice requires a knowledge of the patterns of reproductive response that can be obtained with a much wider range of genotypes and production systems.

Type
Research Article
Information
Animal Production , Volume 44 , Issue 2 , April 1987 , pp. 326 - 329
Copyright
Copyright © British Society of Animal Science 1987

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References

REFERENCES

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