Davies P R, Moore M J, Pointon A M
Department of Agriculture, Adelaide, South Australia.
Vet Rec. 1991 Jun 1;128(22):516-8. doi: 10.1136/vr.128.22.516.
The association between papular skin lesions in slaughtered pigs and hypersensitivity to Sarcoptes scabiei var suis was examined in experimental and field studies, and by the retrospective analysis of monitoring records obtained at slaughter. A causal role for S scabiei was indicated by the production of lesions in experimentally infested pigs, by increased clinical mange in herds having high lesion scores, and by a reduction in the severity of lesions after the implementation of more intensive mange control measures. The specificity of the lesions as an indicator of sarcoptic mite hypersensitivity was estimated to be 0.92 from experimental data and 0.79 from field data. Generalised lesions were rare in mange free pigs, indicating that such lesions were highly specific (1.0 from experimental data, greater than 0.98 from field data) for mange. The assessment of the severity of the lesions in samples of slaughtered pigs appears to be a useful aid to assessing the severity of sarcoptic mange in pig herds.
在实验研究和现场研究中，以及通过对屠宰时获得的监测记录进行回顾性分析，研究了屠宰猪的丘疹性皮肤病变与猪疥螨超敏反应之间的关联。在实验性感染猪中出现病变、病变评分高的猪群中临床疥螨病增多，以及在实施更强化的疥螨病控制措施后病变严重程度降低，这些都表明猪疥螨起到了致病作用。根据实验数据，病变作为疥螨超敏反应指标的特异性估计为0.92，根据现场数据为0.79。在无疥螨病的猪中很少出现全身性病变，这表明此类病变对疥螨病具有高度特异性（根据实验数据为1.0，根据现场数据大于0.98）。对屠宰猪样本中的病变严重程度进行评估，似乎有助于评估猪群中疥螨病的严重程度。
