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Measuring the benefits of disease control: relationship between herd structure, productivity and health.

作者信息

Matthewman R W, Perry B D

出版信息

Trop Anim Health Prod. 1985 Feb;17(1):39-51. doi: 10.1007/BF02356131.

DOI:10.1007/BF02356131
PMID:3992671
Abstract

The influence of calving percentage and mortality levels on herd structures is studied. Standard herd structures with set levels of mortality are calculated for comparison with field data. Herd structures from field surveys in Zambia are studied in order to determine how these can be used to gain more information about herd input and output dynamics. Methods of calculating off-take and the problems relating to making such calculations are discussed.

摘要

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本文引用的文献

1
Productive performance of cattle in Botswana.
Trop Anim Health Prod. 1974 Feb;6(1):1-21. doi: 10.1007/BF02380743.
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Trop Anim Health Prod. 1990 May;22(2):67-76. doi: 10.1007/BF02239829.