畜禽粪便中抗生素抗性基因(ARGs)污染问题及环境调控

被引:64
作者
邹威
罗义
周启星
机构
[1] 南开大学环境科学与工程学院,环境污染过程与基准教育部重点实验室/天津市城市生态环境修复与污染防治重点实验室
基金
国家自然科学基金重点项目;
关键词
抗生素抗性基因(ARGs); 畜禽养殖业; 粪便; 堆肥; 化学抑制剂;
D O I
暂无
中图分类号
X713 [畜牧业];
学科分类号
082803 [农业生物环境与能源工程];
摘要
抗生素在畜禽养殖业的大量使用造成抗生素抗性基因(ARGs)污染日益严重。动物体内诱导出的抗性菌株随粪便排出后,通过基因水平转移进入土壤进而污染土壤和地下水环境。堆肥作为一种将粪便资源化的优良传统方法,能否有效去除畜禽粪便中的ARGs而防止环境污染值得探讨。通过总结畜禽粪便ARGs污染现状,粪便堆肥过程中微生物群落结构变化与影响微生物变化的因素以及堆肥可能对粪便中ARGs造成的影响,提出将堆肥作为去除畜禽粪便中ARGs的一种有效手段,利用堆肥产生的高温去除抗性菌株和抗性质粒等,并且考虑加入能直接灭杀肠道微生物的化学抑制剂(如石灰氮、胺类、吲哚等),实现降低畜禽粪便ARGs丰度的可能。据此强调开展畜禽粪便中ARGs研究的必要性,认为将堆肥和ARGs研究结合起来,可以有效地降低这种新型污染物的污染水平。
引用
收藏
页码:2281 / 2287
页数:7
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