Kawai Kazuhiro, Shinozuka Yasunori, Uchida Ikuo, Hirose Kazuhiko, Mitamura Takashi, Watanabe Aiko, Kuruhara Kana, Yuasa Reiko, Sato Reiichiro, Onda Ken, Nagahata Hajime
School of Veterinary Medicine, Azabu University, Sagamihara, Japan.
National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Japan.
Anim Sci J. 2017 Oct;88(10):1601-1605. doi: 10.1111/asj.12815. Epub 2017 May 18.
The disinfection effect of slightly acidic electrolyzed water (SAEW) use in a farm where Pseudomonas mastitis has spread was evaluated. Despite the application of antibiotic therapy and complete cessation of milking infected quarters, numerous new and recurrent Pseudomonas aeruginosa clinical mastitis infections (5.8-7.1% of clinical mastitis cases) occurred on the farm from 2003 to 2005. Procedural changes and equipment modifications did not improve environmental contamination or the incidence of Pseudomonas mastitis. To more thoroughly decontaminate the milking parlor, an SAEW system was installed in 2006. All milking equipment and the parlor environment were sterilized with SAEW (pH 5-6.5, available chlorine 12 parts per million) before and during milking time. After adopting the SAEW system, the incidence of clinical and subclinical Pseudomonas mastitis cases decreased significantly (P < 0.0001) and disappeared. These findings suggest that SAEW effectively reduced the incidence of mastitis in a herd contaminated by Pseudomonas species. This is the first report to demonstrate the effectiveness of disinfection by SAEW against mastitis pathogens in the environment.
对使用微酸性电解水（SAEW）在一个患有乳房炎的农场中的消毒效果进行了评估，该农场中铜绿假单胞菌乳房炎已经蔓延。尽管采用了抗生素治疗并完全停止对感染乳房进行挤奶，但在2003年至2005年期间，该农场仍出现了大量新的和复发性的铜绿假单胞菌临床乳房炎感染（占临床乳房炎病例的5.8 - 7.1%）。程序变更和设备改造并未改善环境污染或铜绿假单胞菌乳房炎的发病率。为了更彻底地对挤奶厅进行消毒，2006年安装了SAEW系统。在挤奶前和挤奶期间，所有挤奶设备和挤奶厅环境都用SAEW（pH值5 - 6.5，有效氯百万分之12）进行了消毒。采用SAEW系统后，临床和亚临床铜绿假单胞菌乳房炎病例的发病率显著下降（P < 0.0001）并消失。这些发现表明，SAEW有效地降低了被铜绿假单胞菌污染的牛群中乳房炎的发病率。这是第一份证明SAEW对环境中乳房炎病原体消毒有效性的报告。
