目的 :对牛奶的卫生状况及卫生检验方法进行探讨。方法 :取消毒奶和非消毒奶各 4 0份 ,分别测定细菌总数 ,大肠菌群数并与美兰还原试验进行对比。结果 :消毒奶合格率为 85% ,非消毒奶合格率为92 5%。细菌总数测定与美兰还原试验有较好的一致性。结论 :可以用美兰还原试验代替细菌平板计数检测牛奶的卫生状况 ,既简单快速 ,又省时省事。 Objective: To investigate the health status of milk and health inspection methods. Methods: 40 pairs of disinfectant milk and non-disinfectant milk were removed. The total number of bacteria and the number of coliforms were determined respectively and compared with the Meilan reduction test. Results: The pass rate of sterilized milk was 85% and the pass rate of non-sterile milk was 92.5%. The total number of bacteria measured with the Meilan reduction test has a good consistency. CONCLUSIONS: It is possible to measure the hygienic condition of milk with Meilan reduction test instead of bacterial plate count, which is simple, quick and time-saving.