Antibiotic-resistant Escherichia coli isolated from dairy cows and their surrounding environment on a livestock farm practicing prudent antimicrobial use
Antibiotic-resistant Escherichia coli isolated from dairy cows and their surrounding environment on a livestock farm practicing prudent antimicrobial use
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DOI：
10.1016/j.ijheh.2022.113930
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发表时间：
2022-01-29
影响因子：
6
通讯作者：
Kobayashi，Ikuo
中科院分区：
文献类型：
--
作者：
Suzuki，Yoshihiro;Hiroki，Hayate;Kobayashi，Ikuo
在一个畜牧场，抗生素管理及其历史已被管理，以谨慎使用抗生素，我们调查了从奶牛粪便和周围环境中分离的耐药大肠杆菌菌株（即，老鼠和乌鸦粪便，以及来自排水坑和废水处理池的水样），持续1年。奶牛粪便中有两株（1.7%）对四环素耐药，而所有其他菌株对所有其他抗菌药物均敏感。在从奶牛和野生动物中分离的136株菌株中，仅鉴定出1株氨苄青霉素耐药菌株。120株菌中有10株对抗生素耐药，耐药率为8.3%，全年有8个月对抗生素敏感。四环素耐药是常见的所有耐药菌株分离自动物粪便和水样;所有四环素耐药菌株携带tetA。这些结果有力地支持了农场抗生素的正确使用和管理，以最大限度地减少抗药性细菌的爆发和传播。
On a livestock farm where antimicrobial administration and its history had been managed for prudent use of antimicrobials, we surveyed antibiotic-resistantEscherichia colistrains isolated from cow feces and the surrounding environment (i.e., rat and crow feces, and water samples from a drainage pit and wastewater processing tank) every month for 1 year. Two strains (1.7%) in cow feces were resistant to tetracycline, whereas all other strains were susceptible to all other antimicrobials. Among 136 strains isolated from cows and wild animals, only one ampicillin-resistant strain was identified. The antibiotic resistance rate in the drainage from the barn was 8.3% (10/120), and all strains showed susceptibility for 8 months of the year. Tetracycline resistance was common in all resistant strains isolated from animal feces and water samples; all tetracycline-resistant strains carriedtetA. These results strongly support the proper use and management of antibiotics on farms to minimize the outbreak and spread of antibiotic-resistant bacteria.