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Yu Z, Liu Z, Sun L, Dong C, Jin Y, Hu B, Cheng D. Mobile genetic elements mediate the cross-media transmission of antibiotic resistance genes from pig farms and their risks. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172115. [PMID: 38569972 DOI: 10.1016/j.scitotenv.2024.172115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
Manure composting in traditional small-scale pig farms leads to the migration and diffusion of antibiotics and antibiotics resistance genes (ARGs) along the chain of transmission to the surrounding environment, increasing the risk of environmental resistance. Understanding the transmission patterns, driving factors, and health risks of ARGs on small-scale pig farms is important for effective control of ARGs transmission. This study was conducted on a small pig farm and its surrounding environment. The cross-media transmission of ARGs and their risks in the farming habitat were investigated using Metagenomic annotation and qPCR quantitative detection. The results indicate that ARGs in farms spread with manure pile-soil-channel sediment-mudflat sediment. Pig farm manure contributed 22.49 % of the mudflat sediment ARGs. Mobile genetic elements mediate the spread of ARGs across different media. Among them, tnpA and IS26 have the highest degree. Transmission of high-risk ARGs sul1 and tetM resulted in a 50 % and 116 % increase in host risk for sediment, respectively. This study provides a basis for farm manure management and control of the ARGs spread.
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Affiliation(s)
- Zhendi Yu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Zishu Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Lingtao Sun
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Chifei Dong
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Yan Jin
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Baolan Hu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Dongqing Cheng
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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Wang Z, Zhang M, Li J, Wang J, Sun G, Yang G, Li J. Effect of biochar with various pore characteristics on heavy metal passivation and microbiota development during pig manure composting. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:120048. [PMID: 38246105 DOI: 10.1016/j.jenvman.2024.120048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/20/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024]
Abstract
Understanding the porosity of biochar (BC) that promotes the heavy metal (HM) passivation during composting can contribute to the sustainable management of pig manure (PM). The current work aimed to explore the influence of BC with varying pore sizes on the physicochemical properties and morphological changes of HMs (including Zn, Cu, Cr, As, and Hg), and microbiota development during PM composting. The various pore sizes of BC were generated by pyrolyzing pine wood at 400 (T1), 500 (T2), 600 (T3) and 700 (T4) °C, respectively. The results revealed a positive correlation between specific surface area of BC and pyrolysis temperature. BC addition contributed to a significantly extended compost warming rate and duration of high-temperature period, as well as HM passivation, reflected in the decrease in Exc-Zn (63-34%) and Red-Cu (28-13%) content, and the conversion of Oxi-Cr (29-21%) and Red-Hg (16-5%) to more stable forms. Moreover, BC at T4 exhibited the best effect on Zn and Cu passivation due to the highest specific surface area (380.03 m2/g). In addition to its impact on HM passivation, BC addition improved the microbial environment during PM composting, leading to enhanced microbial diversity and richness. Notably, Chloroflexi and Bacteroidota played key roles in promoting the transformation of Exc-Cu and Red-Hg into stable forms. This phenomenon further stimulated the enhanced decomposition of organic matter (OM) when BC prepared at 600-700 °C was added. Therefore, it can be concluded that the regulation of BC porosity is an effective strategy to improve HM passivation and the overall effectiveness of PM composting.
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Affiliation(s)
- Ziqi Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Min Zhang
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ju Li
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiamin Wang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, China
| | - Guotao Sun
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, China.
| | - Gongshe Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jianming Li
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China; Key Laboratory of Protected Horticulture Engineering in Northwest, Ministry of Agriculture and Rural Affairs, China
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Jiang Y, Zhang Y, Brenya R, Wang K. How environmental decentralization affects the synergy of pollution and carbon reduction: Evidence based on pig breeding in China. Heliyon 2023; 9:e21993. [PMID: 38027565 PMCID: PMC10663922 DOI: 10.1016/j.heliyon.2023.e21993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/25/2023] [Accepted: 11/01/2023] [Indexed: 12/01/2023] Open
Abstract
Reducing pollution and carbon is essential to achieve China's goal of "carbon peaking and carbon neutrality"; however, the collaborative paths of pollution and carbon reduction remain vague and worth exploring. This paper analyses panel data from 30 provinces in China from 2002 to 2017 to determine the impact of environmental decentralization on the synergy of pollution and carbon reduction in pig farming. The result shows that environmental decentralization has a significant 'carbon reduction effect' and 'pollution reduction effect' on pig farming; it is also conducive to promoting the synergistic effect of reducing pollution and carbon emissions through supporting environmental facilities and industrial organisations. Various types of environmental decentralization have significant differences in the synergy of pollution and carbon reduction. The scale of pig breeding plays a positive regulatory role in the impact of environmental decentralization on the synergy of pollution and carbon reduction while showing regional heterogeneity. This research is crucial for advancing the green transformation of pig breeding.
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Affiliation(s)
- Yanjun Jiang
- College of Economics and Management, Nanjing Agricultural University, Nanjing 210095, China
| | - Yue Zhang
- College of Finance, Nanjing Agricultural University, Nanjing 210095, China
| | - Robert Brenya
- College of Economics and Management, Nanjing Agricultural University, Nanjing 210095, China
| | - Kai Wang
- College of Economics and Management, Nanjing Agricultural University, Nanjing 210095, China
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Zhao H, Zhou Y, Lu Z, Ren X, Barcelo D, Zhang Z, Wang Q. Microplastic pollution in organic farming development cannot be ignored in China: Perspective of commercial organic fertilizer. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132478. [PMID: 37688868 DOI: 10.1016/j.jhazmat.2023.132478] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/28/2023] [Accepted: 09/02/2023] [Indexed: 09/11/2023]
Abstract
Commercial organic fertilizer, an essential fertilizer for developing organic farming in China, has been identified as a potentially important source of microplastics (MPs) on farmland. However, little is known about the occurrence of MPs in commercial organic fertilizers and their potential ecological risks nationwide. Here, stereoscopy and laser-infrared imaging spectrometry were used to comprehensively investigate the abundance, size, type and morphology of MPs in commercial organic fertilizers collected from mainland China, assess the ecological risks, and predict MP contamination. Commercial organic fertilizers contained many MPs (8.88 ×103 to 2.88 ×105 items/kg), especially rich in small-size MPs (<100 µm), accounting for 76.53%. The highest MP pollution load value was observed in fertilizers collected from East China. Chlorinated polyethylene, polyurethane, polyethylene and polypropylene were the dominant MPs with the shape of film and fragment, concentrated in small sizes (<100 µm). The risk index (H-index) of the MPs was used to quantify the ecological risk of the MPs in the different samples, and most of the fertilizers were at level Ⅲ with high risk. Predictably, 2.32 × 1013 - 2.81 × 1016 MPs will accumulate in orchard soils after five years of fertilization, especially in South, Southwest and East China. This study provides primary scientific data on MP pollution in commercial fertilizer and the health development of organic farming.
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Affiliation(s)
- Haoran Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Yanting Zhou
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Zonghui Lu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Xiuna Ren
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Damia Barcelo
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Quan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China.
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Shi B, Yin C, Léonard A, Jiao J, Di Maria A, Bindelle J, Yao Z. Opportunities for centralized regional mode of manure and sewage management in pig farming: The evidence from environmental and economic performance. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 170:240-251. [PMID: 37725856 DOI: 10.1016/j.wasman.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/14/2023] [Accepted: 09/12/2023] [Indexed: 09/21/2023]
Abstract
Pig breeding is moving toward more intensive development and is accompanied by the integrated generation of pig waste. This has disrupted the synergy between the original manure and sewage management mode and corresponding farmland at the household level. Centralized bio-energy mode is proposed to relieve environmental pressure, increase the resource recovery efficiency and rebuild the breeding and cropping. However, there is a lack of comprehensive information on a regional scale, particularly regarding evaluation, applicability and feasibility. Therefore, compared to the individual and traditional mode at the household level, this study was conducted using life cycle assessment and life cycle cost analysis, systematically assessed the environmental performance and economic viability of the centralized bio-energy mode at the regional scale, and further explored the adaptability of multi-subjects (various pig farms and biogas enterprise) and regional feasibility. Results revealed that the centralized bio-energy mode appeared to be a better alternative in terms of global warming, terrestrial acidification and marine eutrophication, with the significant reductions of 49.49 %, 6.8 % and 4.67 % respectively. Moreover, the study demonstrated a substantial profit of 48.5 CNY1 per ton of managed pig waste. Furthermore, both environmental and economic performance could be improved through scale expansion and transport optimization, with an optimal collection radius of less than 31.45 km. Conclusions clarified the potential of centralized bio-energy mode and provided valuable references for its implementation in various regions. Ultimately, further contributing to a more efficient, cost-effective, and regulated manner for resource recovery, culminating in the sustainability of pig farming and achieving environmental-friendly agriculture practices in regional contexts.
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Affiliation(s)
- Boyang Shi
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China (Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081,China); Laboratory of Chemical Engineering, Department of Applied Chemistry, University of Liège, Liège, Belgium
| | - Changbin Yin
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China (Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081,China); Research Center for Agricultural Green Development in China, Beijing 100081, China.
| | - Angélique Léonard
- Laboratory of Chemical Engineering, Department of Applied Chemistry, University of Liège, Liège, Belgium
| | - Jian Jiao
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China (Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081,China); Economics and Rural Development Laboratory, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Andrea Di Maria
- Biosystems Dynamics and Exchanges, TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Jerome Bindelle
- Precision Livestock and Nutrition Unit, TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Zhizhen Yao
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China (Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081,China)
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