Risk factors for Johne's disease in Scotland - the results of a survey of farmers
Risk factors for Johne's disease in Scotland - the results of a survey of farmers
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DOI：
10.1136/vr.150.5.135
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发表时间：
2002-02-02
影响因子：
2.2
通讯作者：
Greig, A
中科院分区：
文献类型：
--
作者：
Daniels, MJ;Hutchings, MR;Greig, A
自1993年以来，苏格兰东部的约翰氏病报告发病率一直在增加。邮寄问卷调查发送到127个农场，以确定潜在的风险因素约翰氏病有关的野生动物和农场管理措施，并获得86个回报。根据当地兽医中心掌握的资料，在22个被认为没有这种疾病的农场中，有7个（32%）在1990年代报告了约翰氏病的病例，这表明对这种疾病的报告不足。逻辑回归分析表明，63个潜在的解释变量中有8个在5%的水平上对农场报告约翰氏病的可能性有显著影响。其中，大量牲畜和兔子以及野生动物进入饲料库是与该疾病相关的最明确和最一致的风险因素。施粪肥放牧牧场，供水类型的牛和乌鸦的数量也与约翰氏病的存在，但这些关系的性质不太清楚。只有38%的农场报告说采取了任何控制措施来防治约翰氏病，但其中三项控制措施与调查确定的重要风险因素有关，即保持清洁的水供应，控制兔子和不在牧场上撒肥料。
The reported incidence of Johne's disease has been increasing in the east of Scotland since 1993. A postal questionnaire survey was sent to 127 farms to identify potential risk factors for Johne's disease in relation to wildlife and farm management practices, and 86 returns were obtained. Of 22 farms which had been assumed to be free of the disease, on the basis of information held by local veterinary centres, seven (32 per cent) reported cases of Johne's disease in the 1990s, indicating that the disease is under-reported. Logistic regression analyses showed that eight of 63 potentially explanatory variables were significant at the 5 per cent level in affecting the likelihood of farms reporting Johne's disease. of these, large numbers of livestock and rabbits, and access of wildlife to feed stores were the clearest and most consistent risk factors associated with the disease. The application of manure to grazing pasture, the type of water supply for the cattle and the numbers of crows were also related to the presence of Johne's disease but the nature of these relationships was less clear. only 38 per cent of the farms reported taking any control measures to combat Johne's disease, but three of the control measures were relevant to risk factors identified as significant by the survey, namely maintaining a clean water supply, controlling rabbits and not spreading manure on to grazing pasture.