May 3, 2022 · In the present investigation the effects of biochar and hyper-thermal inoculum on the heavy-metal-resistant bacteria (HMRB) during livestock manure composting were studied. An experiment was performed on composting livestock manure and wheat straw amended with biochar and hyper-thermal inoculum. Physicochemical properties, enzyme activity, heavy metals (HMs), and bacterial activities were
Jan 8, 2020 · Journal of environmental quality. 2016. TLDR. Current literature on the fate of antibiotics, ARB, and antibiotic resistance genes (ARGs) during anaerobic digestion and composting of manure and wastewater residuals demonstrates that composting significantly reduces levels of extractable antibiotics in livestock manure in nearly all cases. Expand.
Apr 13, 2024 · The pelleting of biochar mixed with livestock manure compost could have the following advantages: (1) use compost as a binder, (2) reduce the moisture content of compost for pelleting by simply mixing without drying, and (3) promote the application of biochar for carbon sequestration by simultaneous application with agricultural machinery for ch
The findings revealed that the use of compound microbial inoculants increased the compost temperature, accelerated moisture reduction, enhanced cellulase activity, and stimulated the accumulation of NH 4 +-N, NO 3--N, and total nitrogen (TN), resulting in a 9% increase in TN content. The abundance of Firmicutes decreased by 3.95% at the
Aug 14, 2022 · The addition of biochar could mitigate the bioavailability of heavy metals during livestock manure composting. However, the main action mechanism of biochar, such as how it worked, was ambiguous.
Mar 1, 2020 · Here we investigated the variation of antibiotic resistome and its influencing factors during a commercial livestock manure composting. The results showed that composting could effectively reduce the relative abundance of ARGs and mobile genic elements (MGEs).
Apr 15, 2024 · Despite global efforts, most manure is not adequately processed before use on fields, escalating the spread of antimicrobial resistance. This study examined how different cattle manure treatments, including composting and storage, affect its microbiome and resistome.
Turning manure is essential to composting manure. Turning compost incorporates oxygen into the system, homogenizes the pile and breaks up clumps. Turning allows more contact of manure with microbes. Producers have various ways to turn the pile. The two most common for turning compost are with a windrow turner (Figure 7) or bucket tractor.
Jun 15, 2022 · 1. Introduction. Globally, more than half of all antibiotics produced are used in animal husbandry (Van Boeckel et al., 2017; Wang et al., 2019).The larger amount of antibiotics utilization produced selective pressure for microbe in livestock fermentation systems to obtain and remain antibiotic resistance genes (ARGs), and the resistant ability was fostered gradually by the enrichment of the
In total, 16 manure samples were found to be mcr-1 positive, with a detection frequency of 31% in 51 samples. The numbers of mcr-1 gene copies in 12 positive manure samples with a high prevalence of mcr-1 were 10 7 -10 9 copies/g dry weight. During composting, >90% of mcr-1 in the manure was eliminated in 15 days at high temperature (44-65 °C
Mar 21, 2021 · Our data thus suggests that relative initial differences in manure compost community composition remained similar throughout the composting, and that selection by the composting conditions (Villar et al., 2016) was not strong enough to drive converging of different manure compost communities. Sheep and cattle manure composts were initially
Mar 15, 2021 · Antibiotic resistance genes (ARGs) have been diffusely detected in several kinds of organic solid waste, such as livestock manure, sludge, antibiotic fermentation residues, and food waste, thus attracting great attention. Aerobic composting, which is an effective, harmless treatment method for organic solid waste to promote recycling, has been identified to also aid in ARG reduction. However
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.
Feb 1, 2024 · DOI: 10.1016/j.cej.2024.149581 Corpus ID: 267717707; Electrokinetic technology enhanced the control of antibiotic resistance and the quality of swine manure composting @article{Li2024ElectrokineticTE, title={Electrokinetic technology enhanced the control of antibiotic resistance and the quality of swine manure composting}, author={Binxu Li and Muhammad Fahad Sardar and Xu Zhang and Jing Ye and
Aug 11, 2022 · Staphylococcus was the dominant ARG host in beef cow and dairy cow manure; it carried aminoglycoside resistance genes accounting for 10.18% of all hosts in dairy cow manure and M-L-S resistance genes accounting for 16.32% and 13.47% in beef cow manure and dairy cow manure, respectively.
