Effects of metal and metalloid pollutants on the microbiota composition of feces obtained from twelve commercial pig farms across China
Effects of metal and metalloid pollutants on the microbiota composition of feces obtained from twelve commercial pig farms across China
复制标题
金属和类金属污染物对中国12个商业养猪场粪便微生物组成的影响
DOI：
10.1016/j.scitotenv.2018.08.026
复制
发表时间：
2019-01-10
影响因子：
9.8
通讯作者：
Li, Fengqin
中科院分区：
文献类型：
--
作者：
Peng, Zixin;Zhang, Jinling;Li, Fengqin
了解猪粪便中的金属和类金属污染以及微生物组成是支持设计和实施有效污染控制和预防策略所需的重要步骤。在全国12个地区对商品猪育肥前期（Q组）和育肥后期（H组）两个生长阶段的金属和类金属含量以及微生物群落的主要组成进行了调查。这些数据表明，广泛的铝，锰，铜，锌，铁污染的猪粪便。Q组粪便中锌的浓度比H组高近2倍。与H组的微生物组成相比，Q组的微生物组成表现出更丰富的操作分类单位（OTU）和更少的与人畜共患病相关的细菌。斯皮尔曼等级相关分析表明，Cu和北方纬度对猪粪便细菌群落丰富度有显著的正向影响。典范对应分析表明，Zn和Cd对土壤微生物群落组成的影响最大。功能宏基因组预测表明，猪粪便细菌群落中约有0.8%的基因与人类疾病相关，且H组中检测到的预测致病基因显著多于Q组。这些结果支持需要监测重金属污染和控制的人畜共患病病原体传播的猪粪便在中国养猪场。(C)2018由Elsevier B.V.出版
Understanding the metal and metalloid contamination and microbiota composition of pig feces is an important step required to support the design and implementation of effective pollution control and prevention strategies. A survey was implemented in 12 locations across China to investigate the content of metals and metalloids, and the main composition of themicrobial communities of commercially reared pigs during two growth periods, defined as the early (Q group) and the later fattening growth phases (H group). These data showed widespread Al, Mn, Cu, Zn, and Fe pollution in pig feces. The concentration of Zn in the Q group feces was nearly two times higher than the levelsmeasured in the H group. The microbial composition of the Q group exhibited greater richness of operational taxonomic units (OTUs) and fewer bacteria associated with zoonotic diseases compared with the microbial composition of the H group. Spearman rank correlation analysis showed that Cu and northern latitudes had a significant positive effect on the richness of bacterial communities in pig feces. Zn and Cd exhibited the biggest impact on microbial community composition based on canonical correspondence analysis. Functional metagenomic prediction indicated that about 0.8% genes present in the pig feces bacteria community are related to human diseases, and significantly more predicted pathogenic genes were detected in the H group than in the Q group. These results support the need to monitor heavy metal contamination and to control for zoonotic pathogens disseminated from pig feces in Chinese pig farms. (C) 2018 Published by Elsevier B.V.