2021/5/6/ · The demand for animal protein has increased considerably worldwide, especially in China, where large numbers of livestock and poultry are produced. Antibiotics have been widely applied to promote growth and prevent diseases. However, the overuse of antibiotics in animal feed has caused serious environmental and health risks, especially
2014/9/16/ · The problem of ammonia accumulation during manure fermentation can be solved by appropriate dilution of the substrate, so that it contains from 0.5% to 3% of dry matter content, however, due to
2019/5/1/ · Generation of insects' biomass from lignocellulose rich organic wastes is of significant challenges in reducing the environmental impact of wastes and in sustaining feed and food security. This research looked at the effects of lignocellulotic exogenous bacteria in the black soldier fly (BSF) organi
2021/2/1/ · 1. Introduction. The rapid development of livestock and poultry breeding industries results in a large amount of livestock and poultry manure (Gabhane et al., 2012).Animal manure is a valuable resource, which contains a lot of nutrients including nitrogen, phosphorus, and organic matter (Drozdz et al., 2020).However, untreated
2021/3/5/ · 1. Introduction. Land application of manure is the most common method of recycling organic matter and nutrients back to cropland in the United States (U.S.) (Chee-Sanford et al., 2009).However, animal manure is a hotspot for micropollutants such as antimicrobials, hormones, and pesticides (Chee-Sanford et al., 2009; Kyakuwaire et al.,
2023/7/21/ · As livestock and poultry farming expands in China, the generation of fecal waste has significantly increased. Inadequate waste management can contribute to environmental pollution. This study seeks to optimize small-scale composting systems to address the inefficiencies and the limited automation of traditional composting equipment.
2023/8/1/ · Transmission of ARGs during composting with different feedstocks (i.e., sheep manure (SM), chicken manure (CM) and mixed manure (MM, SM:CM = 3:1 ratio) was studied by metagenomic sequencing. 53 subtypes of ARGs for 22 types of antibiotics were identified as commonly present in these compost mixes; among them, CM had higher
2023/6/12/ · Anaerobic digestion is one of the most widely used treatment for animal manure. Chicken manure has high methane production potential and is thus a suitable substrate for biogas plants. However, high nitrogen content inhibits the metabolism of anaerobic microorganisms and thus hinders methane production from chicken manure.
2023/1/1/ · They could produce around 7 million m 3 /day from fresh manure that generated around 228 tons/day [ 10 ]. This country has planned the number of biogas household scale will be increased from 63,000 to 200,000 units from 2000 to 2030 with size of 6 m 3 could generate 3 m 3 of biogas with energy of 79 MJ [ 10 ].
2024/1/1/ · This study explored the combined effects of Bacillus subtilis inoculation with biochar on the evolution of bacterial communities, antibiotic resistance genes (ARGs), and mobile genetic elements (MGEs) during the composting of chicken manure. The results showed that B. subtilis inoculation combined with biochar increased bacterial abundance
2020/2/1/ · The degradation rate of lignocellulose and methane (CH 4) content must be improved through anaerobic fermentation process engineering in order to promote the proper operation of anaerobic organic waste removal without secondary pollution and low cost.The present study investigates mesophilic anaerobic fermentation of dairy manure
2024/4/30/ · Livestock manure is one of the most important pools of antibiotic resistance genes (ARGs) in the environment. Aerobic composting can effectively reduce
2024/6/1/ · Mesophilic and thermophilic acidogenesis were applied through self-fermentation and bioaugmentation under different CM loadings, ranging from 2.5 % to 20 % TS. A stepwise increase in CM loadings was demonstrated to acclimatize the microorganisms in granular sludge before augmenting in the fermentation.
2015/11/1/ · The biggest group of identified methanogens (Methanoculleus) found in the 2nd fermentation stage (N1, N2 and PD) belonged to the class of Methanomicrobia which had been shown to be able to
2024/4/2/ · We used microbiology and molecular biology techniques to screen out high-temperature and low-temperature-resistant saprobiotics for compost and prepared a compound fermentation bacteria agent to rapidly ferment cattle manure into high-quality organic fertilizer in low-temperature season. Conventional composting and high …