Kollbrunner M, Luginbühl A, Pfister K
Tierärztliche Praxis Werdenberg.
Schweiz Arch Tierheilkd. 2010 May;152(5):231-6. doi: 10.1024/0036-7281/a000054.
In the canton of Freiburg, in the midlands of western Switzerland, the influence of housing systems and season on the distribution of Chorioptes-mange was studied. 24 herds with a total of 667 dairy cows held in tethered and loose housings were considered. In the 14 farms with tethered housing 33.8 % of the dairy cows were clinically suspicious and 31.0 % parasitologically positive. In the ten studied farms with loose housing 26.5 % were clinically suspicious and 17.8 % parasitologically positive cows. Statistically the infestations of the two housing systems did not differ significantly (U-test, p > 0.05). The transmission of mange occurs mainly directly from animal to animal, and chronically infested animals are considered to be the main source of infestation. The seasonality of Chorioptes-mange which is typical of our temperate climate was confirmed by serial studies made in two endemically infested farms with tethered housing.
在瑞士西部中部地区的弗里堡州，研究了饲养系统和季节对绒毛螨病分布的影响。研究对象为24个牛群，共667头奶牛，分别采用栓系式和开放式牛舍饲养。在14个采用栓系式牛舍的农场中，33.8%的奶牛有临床疑似症状，31.0%的奶牛经寄生虫学检测呈阳性。在10个采用开放式牛舍的研究农场中，26.5%的奶牛有临床疑似症状，17.8%的奶牛经寄生虫学检测呈阳性。统计学分析表明，两种饲养系统的感染情况无显著差异（U检验，p>0.05）。疥螨病主要通过动物之间直接传播，长期感染的动物被认为是主要传染源。在两个流行感染的栓系式牛舍农场进行的系列研究证实了我们温带气候典型的绒毛螨病季节性。
