Farnsworth R J, Johnson D W, Dewey L
J Dairy Sci. 1976 Nov;59(11):1997-2000. doi: 10.3168/jds.S0022-0302(76)84473-6.
Increased use of after-milking teat dips has resulted in the appearance of many new teat dips and a need for methods of evaluation of efficacy. A method was developed for determining the ability of a disinfectant to kill bacteria on the teat ends. Results from several known efficacious products indicated an approximate 95% reduction in bacterial flora. Additional data are presented on some experimental products. This method will provide a measure of effectiveness of a producton teat-skin disinfection. The effect of some changes in the testing procedure on bacterial reduction is demonstrated: 1) Increased times between inoculation and dipping and between dipping and swabbing tended to decrease recoveries on control teats. 2) Saline dips on controls teats provided increased recoveries of test organisms.
挤奶后乳头药浴的使用增加，导致了许多新型乳头药浴的出现，也产生了对评估其功效方法的需求。开发了一种用于测定消毒剂杀灭乳头末端细菌能力的方法。几种已知有效产品的结果表明，细菌菌群数量大约减少了95%。还给出了一些实验产品的其他数据。该方法将提供一种衡量产品对乳头皮肤消毒效果的指标。展示了测试程序中的一些变化对细菌减少量的影响：1）接种与药浴之间以及药浴与擦拭之间的时间增加，往往会降低对照乳头的细菌回收率。2）对照乳头上使用生理盐水药浴可提高测试微生物的回收率。
