Meara P J, Melmed L N, Cook R C
J S Afr Vet Assoc. 1977 Dec;48(4):255-60.
Microbiological surveillance by swabbing meat wholesaler premises revealed ineffective cleaning and build-up of bacteria. Proper cleaning, sanitation and handling resulted in a vast improvement during 1975-77. Beef samples from the neck of carcases in the wholesale trade were investigated by microbiological methods. Excessive total bacterial counts were obtained from numerous carcases. Most carcases carried coliform organisms. Roughly 90% of carcases were contaminated with E. coli I; counts exceeded 10(3)/g in 18% of carcases tested. Twenty serotypes of Salmonella were identified. Salmonella contamination decreased from nearly 5% in 1975 to less than 0,5% in 1977, and S. aureus contamination from 52% to 36% during the same period. Approximately 30% of carcases revealed contamination with unidentified clostridial species. The results indicate the need for stricter control over the production and slaughter of animals and over the handling of carcases in the wholesale trade.
通过对肉类批发商场所进行拭子采样的微生物监测发现，清洁工作不到位且细菌滋生。在1975年至1977年期间，通过适当的清洁、卫生措施和处理，情况有了极大改善。采用微生物学方法对批发贸易中牛胴体颈部的牛肉样本进行了调查。许多胴体的细菌总数超标。大多数胴体携带大肠菌群。大约90%的胴体被大肠杆菌I污染；在18%的检测胴体中，每克的菌数超过10³ 。鉴定出了20种沙门氏菌血清型。沙门氏菌污染从1975年的近5%降至1977年的不到0.5%，同期金黄色葡萄球菌污染从52%降至36%。大约30%的胴体显示被未鉴定的梭菌属物种污染。结果表明，需要对动物的生产和屠宰以及批发贸易中胴体的处理进行更严格的控制。
