Faculty of Veterinary Medicine, Department of Veterinary Medical Science, University of Bologna, Via Tolara di Sopra 50-40064 Ozzano Emilia, BO, Italy.
Meat Sci. 2012 Feb;90(2):502-6. doi: 10.1016/j.meatsci.2011.08.001. Epub 2011 Aug 10.
The aim of the study was to establish whether the visual cleanliness of cattle slaughtered was correlated to hide and carcass contamination as indicated by aerobic colony count (ACC), Enterobacteriaceae count (EC) and Escherichia coli count (ECC). Cattle in a slaughterhouse were visually inspected and assigned to a category from 1 (very clean) to 5 (very dirty) based on cleanliness. Fifteen animals for each category were randomly selected, hide and carcass sampled and analyzed for ACC, EC and ECC. Results showed that increasing dirt on cattle was associated with higher ACC, EC and ECC on hide and carcasses. Carcass ACC and ECC belonging to animals classified in cleanliness categories 3, 4 or 5 have a higher probability of exceeding the limits set by the Reg. EU 2073/2005. The study supports the conclusion that the pre-slaughter visual evaluation of animal cleanliness and application of corrective actions can be an effective aid to reduce carcass contamination.
本研究旨在确定牛屠宰时的可视清洁度是否与有氧菌落计数（ACC）、肠杆菌计数（EC）和大肠杆菌计数（ECC）所示的胴体和皮毛污染相关。屠宰场的牛根据清洁度从 1（非常干净）到 5（非常脏）进行目视检查和分类。每个类别随机选择 15 头动物，对皮毛和胴体进行采样并分析 ACC、EC 和 ECC。结果表明，牛身上的污垢越多，皮毛和胴体上的 ACC、EC 和 ECC 就越高。属于清洁度类别 3、4 或 5 的动物的胴体 ACC 和 ECC 更有可能超过欧盟 2073/2005 法规设定的限值。该研究支持以下结论：宰前对动物清洁度的目视评估和采取纠正措施可以有效地减少胴体污染。
