期刊
BIORESOURCE TECHNOLOGY
卷 263, 期 -, 页码 393-401出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.04.107
关键词
Zeolite; Superphosphate; Ferrous sulfate; Chicken manure; Bacterial community
资金
- National Key Research and Development Plan of China [2016YFD0800206]
- National Natural Science Foundation of China, China [21377137, 41501275]
- China Postdoctoral Science Foundation, China [2016M591940]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1501077B]
Factory-scale chicken manure composting added with zeolite (F), superphosphate (G), or zeolite and ferrous sulfate (FL) simultaneously, were evaluate for their effects on the behaviors of antibiotic resistance genes (ARGs) and bacterial communities. After composting, ARGs in manure decreased by 67.3% in the control, whereas the reductions were 86.5%, 68.6% and 72.2% in F, G and FL, respectively. ARGs encoding ribosomal protection proteins (tetO, tetB(P), and tetM) were reduced to a greater extent than tetG, tetL, sul1 and sul2. Bacteria pathogens were also effectively removed by composting. Network analysis showed that Firmicutes were the important potential host bacteria for ARGs. The bacterial communities and environmental factors, as well as the intI gene, contributed significantly to the variation of ARGs. The ARGs and integrons were reduced more when zeolite was added than when superphosphate was added; thus, it may be useful for reducing the risks of ARGs in chicken manure.
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