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https://www.readbyqxmd.com/read/28488474/prevalence-of-salmonella-spp-in-environmental-samples-from-table-egg-barns-in-alberta
#1
Joan A St Amand, Rashed Cassis, Robin K King, Colleen B Annett Christianson
Some Salmonella spp. are zoonotic, a frequent cause of food borne illness in Canada, and known to infect humans through contaminated poultry and poultry products. Certain serotypes of Salmonella spp. have been demonstrated to be vertically transmitted from hen to egg. The incidence of Salmonella spp. isolation in the flock has been correlated to its isolation from the environment. Twenty-one producers were enrolled in this study to examine the occurrence of Salmonella spp. in 48 table egg layer flocks housed in 35 barns in Alberta...
May 10, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28462812/biochar-to-reduce-ammonia-emissions-in-gaseous-and-liquid-phase-during-composting-of-poultry-manure-with-wheat-straw
#2
Damian Janczak, Krystyna Malińska, Wojciech Czekała, Rafaela Cáceres, Andrzej Lewicki, Jacek Dach
Composting of poultry manure which is high in N and dense in structure can cause several problems including significant N losses in the form of NH3 through volatilization. Biochar due to its recalcitrance and sorption properties can be used in composting as a bulking agent and/or amendment. The addition of a bulking agent to high moisture raw materials can assure optimal moisture content and enough air-filled porosity but not necessarily the C/N ratio. Therefore, amendment of low C/N composting mixtures with biochar at low rates can have a positive effect on composting dynamics...
April 24, 2017: Waste Management
https://www.readbyqxmd.com/read/28433907/rapid-generation-of-volatile-fatty-acids-vfa-through-anaerobic-acidification-of-livestock-organic-waste-at-low-hydraulic-residence-time-hrt
#3
Kranti Kuruti, Shalini Nakkasunchi, Sameena Begum, Sudharshan Juntupally, Vijayalakshmi Arelli, Gangagni Rao Anupoju
The purpose of this study was to investigate the effect of pre-treatment and F/M (Food to Microorganism) ratios for the rapid generation of volatile fatty acids (VFA) from livestock organic wastes (cattle manure (CM) and poultry litter (PL)) through an anaerobic acidification process at a pH range of 4.5-5.5. Experiments were organized using CM and PL in batch reactors (1L and 25L) with and with no pre-treatment of substrate at F/M ratios (0.4, 0.6, 0.8 and 1). Among various existing pre-treatments methods, thermal-acidic (120°C; 1% H2SO4) pre-treatment was found effective...
April 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28411348/quantitative-detection-of-fecal-contamination-with-domestic-poultry-feces-in-environments-in-china
#4
Fang-Fang Zhuang, Hu Li, Xin-Yuan Zhou, Yong-Guan Zhu, Jian-Qiang Su
Poultry are an important source of fecal contamination in environments. However, tools for detecting and tracking this fecal contamination are in the early stages of development. In practice, we have found that source tracking methods targeting the 16S rRNA genes of poultry-specific microbiota are not sufficiently sensitive. We therefore developed two quantitative PCR assays for detection of poultry fecal contamination, by targeting chicken and duck mitochondrial genes: NADH dehydrogenase subunit 5 (ND5) and cytochrome b (cytb)...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28392123/reduced-turning-frequency-and-delayed-poultry-manure-addition-reduces-n-loss-from-sugarcane-compost
#5
S Bryndum, R Muschler, A Nigussie, J Magid, A de Neergaard
Composting is an effective method to recycle biodegradable waste as soil amendment in smallholder farming systems. Although all essential plant nutrients are found in compost, a substantial amount of nitrogen is lost during composting. This study therefore investigated the potential of reducing N losses by (i) delaying the addition of nitrogen-rich substrates (i.e. poultry manure), and (ii) reducing the turning frequency during composting. Furthermore, we tested the effect of compost application method on nitrogen mineralization...
April 6, 2017: Waste Management
https://www.readbyqxmd.com/read/28386903/long-term-broiler-litter-amendments-can-alter-the-soil-s-capacity-to-sorb-monensin
#6
Sarah A Doydora, Peizhe Sun, Miguel Cabrera, Nehru Mantripragada, John Rema, Spyros G Pavlostathis, Ching-Hua Huang, Aaron Thompson
Monensin is a common antiparasitic drug given to poultry that contaminates poultry manure and bedding material (broiler litter). As broiler litter is commonly applied to agricultural fields as fertilizer, monensin could be released beyond the farm if it is not retained or degraded in the soil. This study aimed to assess the impact of long-term surface application of broiler litter (i.e., 17 years) on the capacity of pasture soil to sorb monensin. The soils were exposed to a range of monensin concentrations (0...
April 7, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28351698/pretreatment-of-poultry-manure-for-efficient-biogas-production-as-monosubstrate-or-co-fermentation-with-maize-silage-and-corn-stover
#7
Tamás Böjti, Kornél L Kovács, Balázs Kakuk, Roland Wirth, Gábor Rákhely, Zoltán Bagi
Water extraction of raw chicken manure elevated the carbon-to-nitrogen ratio 2.7-fold, i.e. from 7.48 to 19.81. The treated chicken manure (T-CM) thus became suitable for biogas fermentation as monosubstrate. Improved methane production was achieved in co-fermentations with either maize silage (24% more methane) or corn stover (19% more methane) relative to T-CM monosubstrate. The standardized biogas potential assay indicated that the methane yields varied with the organic loading rate between 160 and 250 mL CH4/g organic total solid (oTS)...
March 25, 2017: Anaerobe
https://www.readbyqxmd.com/read/28342421/seasonal-and-soil-type-dependent-emissions-of-nitrous-oxide-from-irrigated-desert-soils-amended-with-digested-poultry-manures
#8
Roy Posmanik, Ali Nejidat, Ofer Dahan, Amit Gross
Expansion of dryland agriculture requires intensive supplement of organic fertilizers to improve the fertility of nutrient-poor desert soils. The environmental impact of organic supplements in hot desert climates is not well understood. We report on seasonal emissions of nitrous oxide (N2O) from sand and loess soils, amended with limed and non-limed anaerobic digestate of poultry manure in the Israeli Negev desert. All amended soils had substantially higher N2O emissions, particularly during winter applications, compared to unammended soils...
March 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28319994/growth-of-bacterial-phytopathogens-in-animal-manures
#9
Wojciech Sledz, Sabina Zoledowska, Agata Motyka, Leszek Kadziński, Bogdan Banecki
Animal manures are routinely applied to agricultural lands to improve crop yield, but the possibility to spread bacterial phytopathogens through field fertilization has not been considered yet. We monitored 49 cattle, horse, swine, sheep or chicken manure samples collected in 14 Polish voivodeships for the most important plant pathogenic bacteria - Ralstonia solanacearum (Rsol), Xanthomonas campestris pv. campestris (Xcc), Pectobacterium carotovorum subsp. carotovorum (Pcc), Pectobacterium atrosepticum (Pba), Erwinia amylovora (Eam), Clavibacter michiganensis subsp...
2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28314607/mutagenic-activities-of-biochars-from-pyrolysis
#10
Anna V Piterina, J Kevin Chipman, J Tony Pembroke, Michael H B Hayes
Biochar production, from pyrolysis of lignocellulosic feedstocks, agricultural residues, and animal and poultry manures are emerging globally as novel industrial and commercial products. It is important to develop and to validate a series of suitable protocols for the ecological monitoring of the qualities and properties of biochars. The highly sensitive Salmonella mutagenicity assays (the Ames test) are used widely by the toxicology community and, via the rat liver extract (S9), can reflect the potential for mammalian metabolic activation...
March 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28301246/persistence-of-highly-pathogenic-and-low-pathogenic-avian-influenza-viruses-in-footbaths-and-poultry-manure
#11
R Hauck, B Crossley, D Rejmanek, H Zhou, R A Gallardo
A questionnaire was designed in order to gather information about bedding material and footbath preparation and maintenance in different productive units across the state of California.This information was used to plan two experiments. In the first experiment, we tested the effectiveness of footbaths in inactivating highly pathogenic (HP) and low pathogenic (LP) avian influenza viruses (AIVs) on rubber boots. Surprisingly, quaternary ammonia- and quaternary ammonia + glutaraldehyde-based footbaths were not able to eliminate live HPAIV (H5N8) and LPAIV (H6N2) particles on boots, while a chlorine-based granulated disinfectant was able to destroy the virus at contact...
March 2017: Avian Diseases
https://www.readbyqxmd.com/read/28281067/changes-in-structural-characteristics-and-metal-speciation-for-biochar-exposure-in-typic-udic-ferrisols
#12
Qi Lin, Xin Xu, Qian Chen, Jing Fang, Xiaodong Shen, Lijuan Zhang
Recent studies on biochars confirmed their potential benefits in improving soil fertility and sequestrating contaminants. However, little information on the changes in structural characteristics and metal speciation of biochars after exposure to soils is currently available. The aim of this study was to use double experimental bags to study the transformation of ozonized biochars derived from poultry manure and drying sludge (denoted PB and SB, respectively) in typic udic ferrisols. The carbon and sulfur functional groups and chemical characteristics of the biochars were determined using spectroscopic techniques, such as Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and near-edge X-ray absorption fine structure spectroscopy spectroscopy, combined with chemical extractions...
March 9, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28248673/evaluation-of-methicillin-resistant-staphylococcus-aureus-nasal-carriage-in-malagasy-pig-and-poultry-non-industrial-farmers
#13
Tsiry Rasamiravaka, Tojo Tiana Andriatsitohanana, Andry Rasamindrakotroka
INTRODUCTION: The laboratory of Training and Research in Medical Biology of Madagascar conducted a cross-sectional study to estimate the rate of S. aureus nasal carriage of pig and poultry Malagasy farmers. METHODOLOGY: Pig and poultry farmers from capital town of Madagascar were selected for nasal swabs collection with information on potential risk factors for S. aureus colonization, including animal exposure. RESULTS: Nasal swabs from 180 farmers (M/F sex ratio: 0...
February 28, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28177786/response-of-microbial-communities-to-roxarsone-under-different-culture-conditions
#14
Yaci Liu, Zhaoji Zhang, Yasong Li, Yuhong Fei
Roxarsone is a feed additive widely used in broiler and swine industry that has the potential to contaminate environment, mainly via the use of poultry manure as fertilizer, which results in release of inorganic arsenic to the soil and water. This study was conducted to investigate the roxarsone degradation and the response of microbial community under different culture conditions using high-throughput sequencing technology. Poultry litter was incubated for 288 h in the presence of roxarsone under light aerobic, dark aerobic, or dark anaerobic conditions, showing that roxarsone was completely degraded after 48 h of dark anaerobic incubation, while 79...
January 20, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28147301/batch-and-semi-continuous-anaerobic-co-digestion-of-goose-manure-with-alkali-solubilized-wheat-straw-a-case-of-carbon-to-nitrogen-ratio-and-organic-loading-rate-regression-optimization
#15
Muhammad Hassan, Weimin Ding, Muhammad Umar, Ghulam Rasool
The present study focused on carbon to nitrogen ratio (C/N) and organic loading rate (OLR) optimization of goose manure (GM) and wheat straw (WS). Dealing the anaerobic digestion of poultry manure on industrial scale; the question of optimum C/N (mixing ratio) and OLR (daily feeding concentration) have significant importance still lack in literature. Therefore, Batch and CSTR co-digestion experiments of the GM and WS were carried out at mesophilic condition. The alkali (NaOH) solubilization pretreatment for the WS had greatly enhanced its anaerobic digestibility...
April 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28142211/stimulation-of-n2-o-emission-by-manure-application-to-agricultural-soils-may-largely-offset-carbon-benefits-a-global-meta-analysis
#16
Minghua Zhou, Bo Zhu, Shijie Wang, Xinyu Zhu, Harry Vereecken, Nicolas Brüggemann
Animal manure application as organic fertilizer does not only sustain agricultural productivity and increase soil organic carbon (SOC) stocks, but also affects soil nitrogen cycling and nitrous oxide (N2 O) emissions. However, given that the sign and magnitude of manure effects on soil N2 O emissions is uncertain, the net climatic impact of manure application in arable land is unknown. Here, we performed a global meta-analysis using field experimental data published in peer-reviewed journals prior to December 2015...
January 31, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28122880/lethal-effects-of-the-insect-growth-regulator-cyromazine-against-three-species-of-filth-flies-musca-domestica-stomoxys-calcitrans-and-fannia-canicularis-diptera-muscidae-in-cattle-swine-and-chicken-manure
#17
William A Donahue, Allan T Showler, Michael W Donahue, Bret E Vinson, Weste L A Osbrink
The presence of various species of filth flies is a widespread problem where livestock, including poultry, are maintained and where manure accumulates. The house fly, Musca domestica L.; the stable fly, Stomoxys calcitrans (L.); and the little house fly, Fannia canicularis (L.) (each Diptera: Muscidae), the target pests in our study, can mechanically spread diseases, and S. calcitrans can bite cattle, causing losses in meat and milk production. Chemical control is widely used to suppress filth flies, but resistance to conventional insecticides has become problematic...
April 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28043869/isolation-of-rhamnolipids-producing-cultures-from-faeces-influence-of-interspecies-communication-on-the-yield-of-rhamnolipid-congeners
#18
Marta Woźniak-Karczewska, Kamila Myszka, Agata Sznajdrowska, Alicja Szulc, Agnieszka Zgoła-Grześkowiak, Łukasz Ławniczak, Philippe F-X Corvini, Łukasz Chrzanowski
The aim of this study was to evaluate the ability of bacterial cultures isolated from cattle, poultry or pig faeces and manure to produce rhamnolipids, as well as to investigate the influence of interspecies communication on possible quantitative differences in the production of rhamnolipid congeners. Initial screening methods (oil spreading, drop collapse, haemolytic activity and emulsification activity) showed that approximately 36% of the 51 isolated cultures exhibited the ability to produce biosurfactants...
May 25, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28031470/effectiveness-of-naturally-occurring-substances-added-to-duck-litter-in-reducing-emergence-and-landing-of-adult-musca-domestica-diptera-muscidae
#19
Simon Lachance, Justine Shiell, Michele T Guerin, Cynthia Scott-Dupree
Poultry barns provide an ideal breeding environment for Musca domestica L. (Diptera: Muscidae) owing to the controlled temperatures and litter (manure plus bedding material) accumulation. Management techniques that render the litter less suitable for immature stage development, such as the addition of naturally occurring insecticidal substances, could reduce fly infestations. The effectiveness of acetic, boric, and citric acids; diatomaceous earth; and hydrated lime at restricting female landing and growth of house flies in duck litter was evaluated...
February 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28011599/long-term-effects-of-aided-phytostabilisation-on-microbial-communities-of-metal-contaminated-mine-soil
#20
Olatz Garaiyurrebaso, Carlos Garbisu, Fernando Blanco, Anders Lanzén, Iker Martín, Lur Epelde, José M Becerril, Sven Jechalke, Kornelia Smalla, Elisabeth Grohmann, Itziar Alkorta
Aided phytostabilisation uses metal-tolerant plants, together with organic or inorganic amendments, to reduce metal bioavailability in soil while improving soil quality. The long-term effects of the following organic amendments were examined as part of an aided phytostabilisation field study in an abandoned Pb/Zn mining area: cow slurry, sheep manure and paper mill sludge mixed with poultry manure. In the mining area, two heavily contaminated vegetated sites, showing different levels of soil metal contamination (LESS and MORE contaminated site), were selected for this study...
March 2017: FEMS Microbiology Ecology
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