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Conserving and developing minority British breeds of sheep: the example of the Southdown

Published online by Cambridge University Press:  27 March 2009

S. J. G. Hall
S. J. G. Hall
Affiliation:
Research Group in Mammalian Ecology and Reproduction, Physiological Laboratory, Downing Street, Cambridge CB2 3EG
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Summary

The Southdown is a terminal sire breed producing about 205 registered rams for commercial use in Britain each year. It is strongly associated with its native area of Sussex, with an hierarchical breed structure very similar to that of 30 years ago. The number of breeding ewes has declined from 5475 in 1957 to (minimum estimate) 1202 in 1985.

French and New Zealand imports in the last 20 years have resulted in present-day British Southdown breeding rams being, on average, only 76% of British descent. If further importations are to be made, semen from rams without foreign blood should be taken for storage first, in the interests of genetic conservation.

The required production of Southdown rams for commercial purposes is achieved with a rather small population size. It would be misleading to describe the Southdown as a ‘rare breed’ without taking account of its commercial function and breed structure.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 112 , Issue 1 , February 1989 , pp. 39 - 45
Copyright
Copyright © Cambridge University Press 1989

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References

Anon. (1983). How concern for genetic conservation created the Rare Breeds Survival Trust. Ark 10, 156–158.Google Scholar
Bowman, J. C. & Aindow, C. T. (1974). Genetic conservation and the less common breeds of British cattle, pigs and sheep. University of Reading Department of Agriculture and Horticulture Study no. 13.Google Scholar
Hall, S. J. G. (1986). Genetic conservation of rare British sheep: the Portland, Manx Loghtan and Hebridean breeds. Journal of Agricultural Science, Cambridge 107, 133–144.CrossRefGoogle Scholar
Jewell, P. A. (1985). Rare breeds of domestic livestock as a gene bank. Ark 12, 158–168.Google Scholar
Johnston, R. G. (1983). Introduction to Sheep Farming. London: Granada Publishing.Google Scholar
Kempster, A. J. & Cuthbertson, A. (1977). A survey of the carcass characteristics of the main types of British lamb. Animal Production 25, 165–179.Google Scholar
Lloyd, E. W. (1936). The Southdown Sheep. Chichester: Southdown Sheep Society.Google Scholar
Meat and Livestock Commission (1987). Newsletter. Sheep Improvement Services. May 1987. Bletchley: MLC.Google Scholar
Ministry of Agriculture, Fisheries and Food (1983). Breeding lambs for the market – choosing a terminal sire breed. Leaflet 822. Alnwick: MAFF.Google Scholar
Owen, J. B. (1976). Sheep Production. London: Bailliere Tindall.Google Scholar
Teacher, T. T. (1986). Sheep. In All the World's Animals. Farmed Animals (ed. Broom, D. M.), pp. 66–79. New York: Torstar Books.Google Scholar
Trow-Smith, R. (1959). A History of British Livestock Husbandry 1700–1900. London: Routledge & Kegan Paul.Google Scholar
Watson, J. A. S. & Hobbs, M. E. (1951). Great Farmers. London: Faber & Faber.Google Scholar
Wiener, G. (1961). Population dynamics in fourteen lowland breeds of sheep in Great Britain. Journal of Agricultural Science, Cambridge 57, 21–28.CrossRefGoogle Scholar