Distribution of antibiotic, heavy metals and antibiotic resistance genes in livestock and poultry feces from different scale of farms in Ningxia, China
文献类型: 外文期刊
作者: Peng, Shuang 1 ; Zhang, Hongyan 1 ; Song, Dan 1 ; Chen, Hong 1 ; Lin, Xiangui 1 ; Wang, Yiming 1 ; Ji, Lidong 4 ;
作者机构: 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China
2.Jiangsu Open Univ, Coll Environm & Ecol, Nanjing 210017, Jiangsu, Peoples R China
3.Jiangsu Collaborat Innovat Ctr Solid Organ Waste, Nanjing 210095, Jiangsu, Peoples R China
4.Ningxia Acad Agr & Forestry, Inst Agr Resources & Environm, Yinchuan 750002, Ningxia, Peoples R China
关键词: Livestock and poultry feces; Nutrients content; Heavy metal; Antibiotic; Antibiotic resistance genes
期刊名称:JOURNAL OF HAZARDOUS MATERIALS ( 影响因子:14.224; 五年影响因子:12.984 )
ISSN: 0304-3894
年卷期: 2022 年 440 卷
页码:
收录情况: SCI
摘要: With the rapid development of livestock and poultry breeding industries, pollution problems caused by the discharge of animal feces have become increasingly severe. Nevertheless, there are limited investigations about nutrients and pollutants in animal feces from different scale of farms, especially in Northwest China. Here we investigated nutrients content, 19 antibiotics, 7 heavy metals, 329 antibiotic resistance genes (ARGs) and 35 mobile genetic elements (MGEs) in six main livestock and poultry feces collected from 5 coastal regions of Ningxia. Pig and chicken feces exhibited higher levels of nutrients content, but antibiotics, heavy metals, ARGs and MGEs were also more abundant than those in cattle and sheep feces. Chlortetracycline hydrochloride and doxycycline hyclate were the most commonly used antibiotic, which detected with the highest rate and concentrations, especially in broiler, layer and pig feces. Strong positive correlations were found among different ARGs or between ARGs and MGEs, indicated the risk of horizontal gene transfer of ARGs. Residual antibiotic and heavy metals significantly affect the abundance of ARGs. Feeding mode and the scales of the animal farms served little effect on the distribution of the pollutants (including residual antibiotics, heavy metals, MGEs and ARGs), which were significantly different among animal types. Use of antibiotics and heavy metals should be strictly regulated, especially in chicken and pig farms, in order to control contaminants and reduce potential risks to the environment.
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