BOVINE SPONGIFORM ENCEPHALOPATHY - CASE-CONTROL STUDIES OF CALF FEEDING PRACTICES AND MEAT AND BONEMEAL INCLUSION IN PROPRIETARY CONCENTRATES

被引:127
作者
WILESMITH, JW
RYAN, JBM
HUESTON, WD
机构
[1] Epidemiology Unit, Central Veterinary Laboratory, Ministry of Agriculture, Weybridge, Surrey KT15 3NB, New Haw
关键词
D O I
10.1016/0034-5288(92)90032-W
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Following the identification of meat and bonemeal as the most likely source of exposure for the occurrence of bovine spongiform encephalopathy (BSE) in Great Britain case-control studies were initiated to investigate this hypothesis. These involved a comparison of the consumption of specific proprietary calf feedstuffs, and whether or not meat and bonemeal had been included, between animals born in 1983-84 in BSE-unaffected herds and confirmed cases of BSE also born in 1983-84. The feeding of proprietary concentrates containing meat and bonemeal was found to be a statistically significant risk factor for the occurrence of BSE. These studies therefore support the initial hypothesis that BSE occurred as a result of exposure to a scrapie-like agent via meat and bonemeal.
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页码:325 / 331
页数:7
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