Jun 3, 2017 · Abstract. Overproduction of livestock manures with unpleasant odors causes significant environmental problems. The microbial fermentation bed (MFB) system is considered an effective approach to recycling utilization of agricultural byproducts and pig manure (PM).

Feb 1, 2018 · Fresh cow manure was used as a feedstock in the digestion experiments and collected from the same cow. Seed sludge was taken from a successfully operated full‐scale mesophilic anaerobic digester treating cattle manure in Bursa, Turkey. The cow manure and seed sludge samples were kept at 4°C prior to use. Enrichment studies

Feb 20, 2019 · The aim of this study was to evaluate the efficiency and optimization of co-digestion using sewage sludge (SS), maize straw (MS) and cow manure (CM) as feeds, and the effects of the mixing ratio and C/N ratio of the substrates were analyzed in detail. Among the three substrates tested, CM/MS exhibit

Jan 2, 2024 · Soil microbial composition. The diversity of microbial communities was observed in the solid and liquid samples before and after fermentation, as well as in the unprocessed manure before solid

Jan 31, 2022 · Co-composting of raw manure with other organic sources has recently gained the attention of the scientific community. In the present study, raw manure and manures enriched with humic substances (Humac) or biochar were co-composted to improve their physico-chemical properties. We conducted an experiment including variants consisting of soil amended with manure (M), manure + Humac (M + H

Mar 15, 2020 · Livestock manure is considered as an important source for spreading antibiotic resistance genes (ARGs) into the environment, and therefore poses a direct threat to public health. Whereas the effects of reused manure on soil microbial communities and ARGs have been studied extensively, comprehensive

had the same microbial inoculant and cow manure, the different substrates (rice husk, sugar residue, and tomato straw) were added to adjust the C/N ratio at 28:1.

Dec 28, 2021 · Farm facts. Guy Douglas, South Field Farm. 300ha mixed beef, sheep and arable farm; 400-500 head of store cattle; Suffolk cross commercial sheep flock with a hobby flock of Kerry Hills

Apr 27, 2016 · Redundancy analysis revealed that the changes of nitrogen played a predominant role in the distributions of OTUs during the composting process, and bacterial community structure and composition significantly varied in each phase of composting. Microbial population dynamics in co-composting of cow manure and rice straw were evaluated using 16S high throughput sequencing technology

Jul 10, 2020 · The objective of this research is to present a review of the current technologies and pretreatments used in the fermentation of cow, pig and poultry manure. Pretreatment techniques were classified into physical, chemical, physicochemical, and biological groups. Various aspects of these different pretreatment approaches are discussed in this review. The advantages and disadvantages of its

Mar 8, 2023 · The cow manure application increased the relative abundance of pathogenic bacteria including Pseudomonas, Clostridium, and Streptococcus, which may have resulted in potential risks of pathogenic contamination for soil quality. The findings of this study are useful for understanding the effects of cow manure application on soil quality in farmland.

Feb 10, 2021 · This situation also applies to the European Union (EU), where approximately 1.2 billion tons of manure is generated annually (Scarlat et al., 2018b). Alongside this, cow manure (CM) holds a great share, which stands for more than half of the total amount of manure currently and will further reach around 75% in one decade (Meyer et al., 2018). A

This study reveals that chicken manure was the best substrate for SCP production by submerged fermentation using photosynthetic bacteria compared to swine, cow, and buffalo manure. Regression analysis showed that the productions were found to be significantly influenced by chicken manure content, inoculum size, and cultivation time.

Jan 1, 2007 · A mathematical model for the hydrolysis and acidogenesis reactions in anaerobic digestion of cattle manure is presented. This model is based on the premise that particulate hydrolysable fraction of cattle manure is composed of cellulose and hemicellulose that are hydrolyzed at different rates according to a surface-limiting reaction; and, that the respective soluble products of hydrolysis are

May 25, 2023 · : Therefore, we prepared organic manure via solid fermentation by mixing cow manure with different oil meals (soybean meal, rape meal, peanut bran, sesame meal). Then, we studied its effects on soil microbial community structure and function, physicochemical properties, enzyme activities, tobacco yield and quality; then we analyzed the