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https://www.readbyqxmd.com/read/29147640/robinsoniella-peoriensis-infection-related-to-right-femoral-hardware
#1
Justin Schmetterer, Joseph Gorvetzian, Shaun Yang
Discovered in swine manure relatively recently, Robsinoniella peoriensis is a gram-positive anaerobic bacilli that has been reported to cause human infections. Its antimicrobial susceptibility, epidemiology and overall pathogenicity are still not fully understood. We report a case of a hardware related soft tissue infection in the right femur caused by Robinsoneilla peoriensis following an open reduction internal fixation in a 67 year old immunocompetent woman. The patient was successfully treated with six weeks of ertapenem...
2017: IDCases
https://www.readbyqxmd.com/read/29140644/evaluation-of-low-cost-hydrogen-sulfide-monitors-for-use-in-livestock-production
#2
Jessica M Beswick-Honn, Thomas M Peters, T Renée Anthony
Direct-reading gas monitors warn workers of the risk of potentially fatal hydrogen sulfide (H2S) exposures that may arise during manure handling. Low-cost, low-maintenance H2S monitors are available from many manufacturers, but differences in their features and performance make selection challenging for farmers. Moreover, little information is available on the practical maintenance and performance of these devices in agricultural environments. The objective of this study was to provide information to agricultural workers to aid in the selection, maintenance, and use of low-cost H2S monitors...
November 20, 2017: Journal of Agricultural Safety and Health
https://www.readbyqxmd.com/read/29137887/effects-of-chlortetracycline-on-the-fate-of-multi-antibiotic-resistance-genes-and-the-microbial-community-during-swine-manure-composting
#3
Zhiqiang Chen, Yao Wang, Qinxue Wen
Excessive use of antibiotics in breeding industry leads to accumulation of antibiotic residuals and antibiotic resistance genes (ARGs) in environment from improperly treated livestock excrements. Four commonly used veterinary antibiotics including chlortetracycline (CTC), sulfamerazine (SMZ), enrofloxacin (ENR) and erythromycin (ERY) were monitored in the swine manure composting. Co-resistance and cross-resistance effects among relative ARGs, correlations between ARGs and bacterial community under multiple antibiotics residual during the composting were investigated in this research...
November 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29131711/aerobic-treatment-of-swine-manure-to-enhance-anaerobic-digestion-and-microalgal-cultivation
#4
Dominic Bekoe, Lijun Wang, Bo Zhang, Matthew Scott Todd, Abolghasem Shahbazi
Aerobic treatment of swine manure was coupled with anaerobic digestion and microalgal cultivation. A 14-day aerobic treatment reduced the total solid content of swine manure by >15%. Ammonia and carbon dioxide were stripped by the air supplied, and this off-gas was further used to aerate the culture of Chlorella vulgaris. The microalgal growth rates in Bristol medium and the wastewater with the off-gas increased from 0.08 to 0.22 g/L/d and from 0.15 to 0.24 g/L/d, respectively. Meanwhile, the aerobically treated swine manure showed a higher methane yield during anaerobic digestion...
November 13, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29126051/oxidation-resistance-of-biochars-as-a-function-of-feedstock-and-pyrolysis-condition
#5
Lanfang Han, Kyoung S Ro, Yu Wang, Ke Sun, Haoran Sun, Judy A Libra, Baoshan Xing
Assessing biochar's ability to resist oxidation is fundamental to understanding its potential to sequester carbon. Chemical oxidation exhibits good performance in estimating the oxidation resistance of biochar. Herein, oxidation resistance of 14 types of biochars produced from four feedstocks at different pyrolysis conditions (hydrothermal versus thermal carbonization) was investigated via hydrogen peroxide oxidation with varying concentrations. The oxidation resistance of organic carbon (C) of hydrochars was relatively higher than that of 250°C pyrochars (P250) but was comparable to that of 450°C pyrochars (P450)...
November 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29102181/microwave-digestion-assisted-hfo-biochar-adsorption-to-recover-phosphorus-from-swine-manure
#6
Tao Zhang, Haoyu Xu, Huanhuan Li, Xinyue He, Yuanji Shi, Andrea Kruse
A sustainable management option for dealing with waste straw is to pyrolyze it to create biochar, which can then be used as a sorbent in pollution treatments, such as the recovery of phosphorus (P) from swine manure. However, the inability to directly capture soluble organic P (OP) and sparingly soluble P and the low selectivity of biochar remain key issues in this process. To overcome these, we investigated a microwave (MW) digestion pretreatment with a HFO/biochar adsorption process. The MW digestion-assisted treatment showed good performance for the solubilization of OP and sparingly soluble P...
October 25, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29094590/discrepancies-and-uncertainties-in-bottom-up-gridded-inventories-of-livestock-methane-emissions-for-the-contiguous-united-states
#7
Alexander Hristov, Michael Harper, Robert Meinen, Rick Day, Juliana Lopes, Troy L Ott, Aranya Venkatesh, Cynthia A Randles
In this analysis we used a spatially-explicit, simplified bottom-up approach, based on animal inventories, feed dry matter intake, and feed intake-based emission factors to estimate county-level enteric methane emissions for cattle and manure methane emissions for cattle, swine, and poultry for the contiguous United States. Overall, this analysis yielded total livestock methane emissions (8,916 Gg/yr; lower and upper 95% confidence bounds of ±19.3%) for 2012 (last census of agriculture) that are comparable to the current USEPA estimates for 2012 and to estimates from the global gridded Emission Database for Global Atmospheric Research (EDGAR) inventory...
November 2, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29090625/application-of-bacillus-sp-tat105-to-reduce-ammonia-emissions-during-pilot-scale-composting-of-swine-manure
#8
Kazutaka Kuroda, Akihiro Tanaka, Kenich Furuhashi, Kiyohiko Nakasaki
Thermophilic ammonium-tolerant bacterium Bacillus sp. TAT105 grows and reduces ammonia (NH3) emissions by assimilating ammonium nitrogen during composting of swine feces. To evaluate the efficacy of a biological additive containing TAT105 at reducing NH3 emissions, composting tests of swine manure on a pilot scale (1.8 m(3)) were conducted. In the TAT105-added treatment, NH3 emissions and nitrogen loss were lower than those in the control treatment without TAT105. No significant difference was detected in losses in the weight and volatile solids between the treatments...
November 1, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29068326/swine-manure-treatment-by-anaerobic-membrane-bioreactor-with-carbon-nitrogen-and-phosphorus-recovery
#9
Fan Bu, Shiyun Du, Li Xie, Rong Cao, Qi Zhou
Swine manure wastewater was treated in an anaerobic membrane bioreactor (AnMBR) that combined a continuous stirred tank reactor (CSTR) and a hollow-fiber ultrafiltration membrane, and the feasibility of ammonia and phosphorus recovery in the permeate was investigated. The AnMBR system was operated steadily with a high mixed liquor suspended solids (MLSS) concentration of 32.32 ± 6.24 g/L for 120 days, achieving an average methane yield of 280 mL/gVSadded and total chemical oxygen demand removal efficiency of 96%...
October 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29057890/effect-of-nitrate-leaching-caused-by-swine-manure-application-in-fields-of-the-yellow-river-irrigation-zone-of-ningxia-china
#10
Shiqi Yang, Yongsheng Wang, Ruliang Liu, Aiping Zhang, Zhengli Yang
A five-year swine manure application trial and a study of nitrate leaching losses have been conducted. There were three treatments: traditional without manure (CK), traditional matched manure 4500 kg ha(-2) (T1) and traditional matched manure 9000 kg ha(-2) (T2). Nitrate nitrogen leaching losses at the 30-, 60-, and 90-cm soil layers were measured using the resin core method. The results indicate that the swine manure application did not noticeably increase soil nitrate leaching losses in the 30-cm layer...
October 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29056384/different-methods-of-incorporating-ciprofloxacin-in-soil-affect-microbiome-and-degradation-of-ciprofloxacin-residue
#11
Longyong Liu, Jiandui Mi, Yan Wang, Yongde Zou, Baohua Ma, Xindi Liao, Juan Boo Liang, Yinbao Wu
Antibiotic residues in swine manure when entered the soil would most likely affect the complex composition and functions of the soil microbiome, which is also responsible for degrading these antibiotics. Three different methods of adding ciprofloxacin (CIP), a common antibiotic used in the swine industry, to the soil were used to investigate the effects of CIP on the soil microbiome and the degradation of CIP. Results of the study showed that the microbiome could promote the degradation of CIP in the soil when CIP was incorporated into the soil together with manure...
October 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29054657/feed-additives-shift-gut-microbiota-and-enrich-antibiotic-resistance-in-swine-gut
#12
Yi Zhao, Jian-Qiang Su, Xin-Li An, Fu-Yi Huang, Christopher Rensing, Kristian Koefoed Brandt, Yong-Guan Zhu
Antibiotic resistance genes (ARGs) are emerging environmental contaminants posing a threat to public health. Antibiotics and metals are widely used as feed additives and could consequently affect ARGs in swine gut. In this study, high-throughput quantitative polymerase chain reaction (HT-qPCR) based ARG chip and next-generation 16S rRNA gene amplicon sequencing data were analyzed using multiple statistical approaches to profile the antibiotic resistome and investigate its linkages to antibiotics and metals used as feed additives and to the microbial community composition in freshly collected swine manure samples from three large-scale Chinese pig farms...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28968533/using-the-agricultural-environment-to-select-better-surrogates-for-foodborne-pathogens-associated-with-fresh-produce
#13
Kimberly L Cook, Ethan C Givan, Holly M Mayton, Rohan R Parekh, Ritchie Taylor, Sharon L Walker
Despite continuing efforts to reduce foodborne pathogen contamination of fresh produce, significant outbreaks continue to occur. Identification of appropriate surrogates for foodborne pathogens facilitates relevant research to identify reservoirs and amplifiers of these contaminants in production and processing environments. Therefore, the objective of this study was to identify environmental Escherichia coli isolates from manures (poultry, swine and dairy) and surface water sources with properties similar to those of the produce associated foodborne pathogens E...
December 4, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28964602/temporal-succession-of-soil-antibiotic-resistance-genes-following-application-of-swine-cattle-and-poultry-manures-spiked-with-or-without-antibiotics
#14
Yu-Jing Zhang, Hang-Wei Hu, Min Gou, Jun-Tao Wang, Deli Chen, Ji-Zheng He
Land application of animal manure is a common agricultural practice potentially leading to dispersal and propagation of antibiotic resistance genes (ARGs) in environmental settings. However, the fate of resistome in agro-ecosystems over time following application of different manure sources has never been compared systematically. Here, soil microcosm incubation was conducted to compare effects of poultry, cattle and swine manures spiked with or without the antibiotic tylosin on the temporal changes of soil ARGs...
December 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28959823/revised-methane-emissions-factors-and-spatially-distributed-annual-carbon-fluxes-for-global-livestock
#15
Julie Wolf, Ghassem R Asrar, Tristram O West
BACKGROUND: Livestock play an important role in carbon cycling through consumption of biomass and emissions of methane. Recent research suggests that existing bottom-up inventories of livestock methane emissions in the US, such as those made using 2006 IPCC Tier 1 livestock emissions factors, are too low. This may be due to outdated information used to develop these emissions factors. In this study, we update information for cattle and swine by region, based on reported recent changes in animal body mass, feed quality and quantity, milk productivity, and management of animals and manure...
September 29, 2017: Carbon Balance and Management
https://www.readbyqxmd.com/read/28933648/optimization-of-animal-manure-vermicomposting-based-on-biomass-production-of-earthworms-and-higher-plants
#16
Yan V Borges, Luciano Alves, Ivan Bianchi, Jonas C Espíndola, Juahil M De Oliveira, Claudemir M Radetski, Cleder A Somensi
The goal of this study was to optimize the mixture of swine manure (SM) and cattle manure (CM) used in the vermicomposting process, seeking to increase the manure biodegradation rate and enhance the biomass production of both earthworms and higher plants. To achieve this goal, physico-chemical parameters were determined to assess the final compost quality after 50 days of vermicomposting. The different manure ratios used to produce the composts (C) were as follows (SM:CM, % m/m basis): C1 100:0, C2 (75:25), C3 (50:50), C4 (25:75), and C5 (0:100)...
November 2, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28928727/composted-cattle-manure-increases-microbial-activity-and-soil-fertility-more-than-composted-swine-manure-in-a-submerged-rice-paddy
#17
Suvendu Das, Seung Tak Jeong, Subhasis Das, Pil Joo Kim
Livestock waste composts with minimum inorganic fertilizer as a soil amendment in low-input intensive farming are a feasible agricultural practice to improve soil fertility and productivity and to mitigate soil degradation. The key benefits of the practice rely on the activities of soil microorganisms. However, the role of different livestock composts [composted cattle manure (CCM) vs. composted swine manure (CSM)] on soil microbes, their activities and the overall impact on soil fertility and productivity in a flooded paddy remains elusive...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28927851/low-temperature-hydrothermal-pretreatment-followed-by-dry-anaerobic-digestion-a-sustainable-strategy-for-manure-waste-management-regarding-energy-recovery-and-nutrients-availability
#18
Weiwei Huang, Ziwen Zhao, Tian Yuan, Wenli Huang, Zhongfang Lei, Zhenya Zhang
This study evaluated the feasibility of low-temperature hydrothermal (HT) pretreatment for improving dry anaerobic digestion (AD) of swine manure (SM) and nutrient elements reclamation, with specific goals to minimize the drawbacks of conventional HT process including high energy consumption, inhibitory compounds formation and unfavorable pH/alkalinity decrease. Pretreatment at 110-130°C for holding 30min increased the soluble organic carbon (SOC) concentration in SM by 13-26%. After being mixed with inocula, the pretreated SM was applied for dry AD tests successfully without initial pH adjustment, achieving a CH4 yield of 280...
September 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28926918/effects-of-graphene-oxide-on-the-performance-microbial-community-dynamics-and-antibiotic-resistance-genes-reduction-during-anaerobic-digestion-of-swine-manure
#19
Junya Zhang, Ziyue Wang, Yawei Wang, Hui Zhong, Qianwen Sui, Changping Zhang, Yuansong Wei
The role of graphene oxide (GO) on anaerobic digestion (AD) of swine manure concerning the performance, microbial community and antibiotic resistance genes (ARGs) reduction was investigated. Results showed that methane production was reduced by 13.1%, 10.6%, 2.7% and 17.1% at GO concentration of 5mg/L, 50mg/L, 100mg/L and 500mg/L, respectively, but propionate degradation was enhanced along with GO addition. Both bacterial and archaeal community changed little after GO addition. AD could well reduce ARGs abundance, but it was deteriorated at the GO concentration of 50mg/L and 100mg/L and enhanced at 500mg/L, while no obvious changes at 5mg/L...
December 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28898832/evaluation-of-integrated-ammonia-recovery-technology-and-nutrient-status-with-an-in-vessel-composting-process-for-swine-manure
#20
Jung Kon Kim, Dong Jun Lee, Balsubramani Ravindran, Kwang-Hwa Jeong, Jonathan Woon-Chung Wong, Ammaiyappan Selvam, Obuli P Karthikeyan, Jung-Hoon Kwag
The study investigated the effect of different initial moisture (IM) content (55, 60, 65, and 70%) of composting mixtures (swine manure and sawdust) for the production of nutrient rich manure, and the recovery of ammonia through a condensation process using a vertical cylindrical in-vessel composter for 56days. The composting resulted in a significant reduction in C:N ratio and electrical conductivity (EC), with a slight increase in pH in all products. The NH3 were emitted notably, and at the same time the NO3(-)-N concentration gradually increased with the reduction of NH4(+)-N in the composting mixtures...
December 2017: Bioresource Technology
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