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A method for predicting proportions of affected herds from proportions of affected animals

Published online by Cambridge University Press:  19 October 2009

F. B. Leech  and
R. W. M. Wedderburn
F. B. Leech
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts.
R. W. M. Wedderburn
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts.
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Summary

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The frequency of herds affected with 13 different diseases is shown to bear a simple relationship to the frequency of affected animals. The relationship seems to be useful for predicting proportions of affected herds.

Type
Research Article
Information
Journal of Hygiene , Volume 70 , Issue 3 , September 1972 , pp. 409 - 414
Copyright
Copyright © Cambridge University Press 1972

References

REFERENCES

Leech, F. B., Davis, Muriel E., Macrae, W. D. & Withers, F. W. (1960). Disease, wastage and husbandry in British dairy herds: Report of a national survey in 1957–58. London, H.M.S.O.Google Scholar
Leech, F. B., Vessey, M. P. & Macrae, W. D. (1964). Brucellosis in the British dairy herd. Animal Disease Surveys: Report No. 4. London: H.M.S.O.Google Scholar
Leech, F. B., Macrae, W. D. & Menzies, D. W. (1968). Calf wastage and husbandry in Britain, 1962–63. Animal Disease Surveys: Report No. 5. London: H.M.S.O.Google Scholar
Nelder, J. A. & Mead, R. (1965). A simplex method for function minimization. Computer Journal, 7, 308–13.Google Scholar