Apr 15, 2021 · Considering the probable risk, improved and adaptable technologies are urgently needed to control antibiotic resistance efficiently. This study monitored how thermophilic aerobic composting affected the ARGs, as well as the bacterial diversity during the composting of cow manure spiked with sulfamethoxazole (SMX) at different concentrations.
Jan 15, 2018 · There are generally three of application for livestock manure: direct land application, anaerobic digestion for methane production, and aerobic composting. Manure composting is recognized as a common and effective way of reducing chemical and biological hazards in organic wastes prior to land application (Bernal et al., 2009, Xie et al
Dec 1, 2016 · The over-use of antibiotics in animal husbandry in China and the concomitant enhanced selection of antibiotic resistance genes (ARGs) in animal manures are of serious concern. Thermophilic composting is an effective way of reducing hazards in organic wastes.
Nov 1, 2023 · Co-composting of selenium and livestock manure is an effective way to produce selenium-rich organic fertilizer. However, antibiotic resistance genes (ARGs), as emerging contaminants in compost, respond to selenium remains unknown. In this study, the effects of selenite and selenate on ARGs during goat manure composting were investigated.
Apr 15, 2021 · In another composting experiment conducted by Chang et al. (2019a), it has been reported that SRGs (sul1 and sul2) were overwhelmingly increased from 1.2 × 10 8 to 1.2 × 10 11 copies per gram of dry compost. In chicken manure composting, the absolute abundance of several ARGs (e.g., tetQ, cmlA, and floR) were significantly increased in some
Jul 1, 2020 · By investigating the profile variation of 36 ARGs and 4 mobile genetic elements (MGEs), the succession of bacterial communities and the change in physicochemical factors during pig manure composting, this study aimed to: 1) determine the environmental behaviors and removal efficiencies of ARGs in pig manure composting; 2) determine the impact
Oct 5, 2018 · •. Composting is a solution to partially remove some antibiotics. •. The transformation pathways are barely known. •. The fate of antibiotic resistance genes during composting still remains inconsistent. •. Authorized levels of antibiotics in sludge, manure and compost should be considered. Abstract.
Mar 15, 2024 · These large amounts of antibiotic residues in livestock manure induce antibiotic resistance in animal gastrointestinal microorganisms [2]. Antibiotics introduced into the environment induce the production of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs), which pose a risk to the environment and public health [3], [4].
Jun 1, 2022 · 1. Introduction. The excessive use of livestock breeding antibiotics leads to the accumulation of antibiotics in manure owing to incomplete metabolism, which may induce the emergence of antibiotic-resistant bacteria (ARB), and thus manure become a vital reservoir for ARB and antibiotic resistance genes (ARGs) (Qiao et al., 2018, Zhu et al., 2013).
Jan 15, 2022 · Livestock manure has been identified as a significant hotspot for antibiotic resistance genes (ARGs). However, the impact of nanoscale zero-valent iron (nZVI) on the fate of ARGs during livestock manure composting remains poorly understood. Here, we investigated the evolution of ARGs in chicken manure compost exposed to 100 and 600 mg kg −1
Aug 11, 2022 · The multidrug resistance genes represented the dominant ARGs in pathogenic antibiotic-resistant bacteria in manure but could be effectively controlled by composting. Our experiments revealed the common resistome in animal manure, classified and relative quantified the ARG hosts, and assessed the mobility of ARGs.
Oct 15, 2021 · The ARGs in different animal manure composting have various abundance and diversity, as depicted in Fig. 1. Fig. 1 (a) shows the distribution of relative abundances (RAs) of ARGs in initial manure composting. For example, the initial RAs of total ARGs in poultry manure composting materials ranged from 0.375 to 3.300 (median value at 1.546
