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A note on the distribution of scrapie in sheep of different ages

Published online by Cambridge University Press:  02 September 2010

A. G. Dickinson ,
G. B. Young ,
J. T. Stamp  and
C. C. Renwick
A. G. Dickinson
Affiliation:
A.R.C. Animal Breeding Research Organisation, Edinburgh 9
G. B. Young
Affiliation:
A.R.C. Animal Breeding Research Organisation, Edinburgh 9
J. T. Stamp
Affiliation:
Moredun Institute, Gilmerton, Edinburgh
C. C. Renwick
Affiliation:
Moredun Institute, Gilmerton, Edinburgh
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Extract

Natural scrapie can develop in sheep at any age later than about 18 months old. In order to formulate a realistic policy for experimental investigation of the disease as it occurs naturally, it is necessary to understand what factors might affect the incidence in sheep of different ages. Any attempt to use data from commercial sheep flocks to draw conclusions about the age distribution of scrapie cases must make allowance for the fact that the population at risk is being culled on commercial criteria and incurs losses by death from various causes.

Information

Type
Research Article
Information
Animal Production , Volume 6 , Issue 3 , October 1964 , pp. 375 - 377
Copyright
Copyright © British Society of Animal Science 1964

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References

REFERENCES

Draper, G. J. & Parry, H. B., 1962. Scrapie in sheep: the hereditary component in a high incidence environment. Nature, Lond., 195: 670.Google Scholar
Parry, H. B., 1962. Scrapie: A transmissible and hereditary disease of sheep. Heredity, 17: 75.Google Scholar
Young, G. B. & Purser, A. F., 1962. Breed structure and genetic analysis of Border Leicester sheep. Anim. Prod., 4: 379.Google Scholar