Dissemination of antibiotic resistance genes and their potential removal by on-farm treatment processes in nine swine feedlots in Shandong Province, China
文献类型：期刊论文
| 作者 | Wang, Jian; Qiang, Zhimin; Ben, Weiwei; Pan, Xun |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017 |
| 卷号 | 167期号:0页码:262-268 |
| 关键词 | Antibiotic Resistance Genes Dissemination Removal On-farm Treatment Process Swine Feedlot |
| 英文摘要 | This work investigated the dissemination of antibiotic resistance genes (ARGs) encoding resistance to sulfonamide and tetracycline antibiotics in nine swine feedlots located in Shandong Province of China, and examined their potential removal by various on-farm treatment processes. Results indicate that the target ARGs were widely distributed in swine wastes, with mean relative abundances ranging from 3.3 x 10(-5) (tetC) to 5.2 x 10(-1) (tetO) in swine manure and from 73 x 10(-3) (tetC) to 1.7 x 10(-1) (tetO) in swine wastewater. The mean relative ARG abundances ranged from 9.9 x 10(-5) (tetW) to 1.1 x 10(-2) (tetO) in soils and from 3.1 x 10(-4) (tetW) to 1.1 x 10(-2) (sul2) in receiving river sediments, indicating that the farmland application of swine manure compost and the discharge of swine wastewater promoted the dissemination of ARGs into adjacent environments. Microbial fermentation bed (MFB) could reduce the relative ARG abundances by 0-1.18 logs. However, septic tank, biogas digester and natural drying methods were relatively ineffective for ARG removal, and the relative abundances of some ARGs (i.e., tetC, tetG, sul1, and sul2) even increased by 0.74-3.90 logs in treated wastes. Bacterial diversity analysis indicates that the evolution of bacterial communities in the MFB played a crucial role in eliminating the ARGs. This study helps the effective assessment and management of ecological risks arising from ARGs in swine feedlots. (C) 2016 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39682]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Jian,Qiang, Zhimin,Ben, Weiwei,et al. Dissemination of antibiotic resistance genes and their potential removal by on-farm treatment processes in nine swine feedlots in Shandong Province, China[J]. CHEMOSPHERE,2017,167(0):262-268. |
| APA | Wang, Jian,Qiang, Zhimin,Ben, Weiwei,&Pan, Xun.(2017).Dissemination of antibiotic resistance genes and their potential removal by on-farm treatment processes in nine swine feedlots in Shandong Province, China.CHEMOSPHERE,167(0),262-268. |
| MLA | Wang, Jian,et al."Dissemination of antibiotic resistance genes and their potential removal by on-farm treatment processes in nine swine feedlots in Shandong Province, China".CHEMOSPHERE 167.0(2017):262-268. |
入库方式： OAI收割
来源：生态环境研究中心
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