Influence of zeolite and superphosphate as additives on antibiotic resistance genes and bacterial communities during factory-scale chicken manure composting

Bioresource Technology
Shuang PengYiming Wang

Abstract

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.

Citations

Aug 29, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Xuan GuoChengjun Zhang
Nov 22, 2020·Environmental Science and Pollution Research International·Tianlei QiuXuming Wang
Jan 12, 2021·Bioresource Technology·Guoying WangJing Yuan
Sep 5, 2018·The Science of the Total Environment·Xue ZhouYong-Guan Zhu
Jun 12, 2020·The Science of the Total Environment·Mukesh Kumar AwasthiZengqiang Zhang
Jun 18, 2021·Ecotoxicology and Environmental Safety·Xiuwen QiuHuijuan Wang
Jul 23, 2021·Journal of Hazardous Materials·Chen YanlongWang Yuheng
Jan 13, 2022·The Science of the Total Environment·Sen LiGuanghua Wang

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