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https://www.readbyqxmd.com/read/28735210/moisture-content-prediction-in-poultry-litter-using-artificial-intelligence-techniques-and-monte-carlo-simulation-to-determine-the-economic-yield-from-energy-use
#1
José Octavio Rico-Contreras, Alberto Alfonso Aguilar-Lasserre, Juan Manuel Méndez-Contreras, Jhony Josué López-Andrés, Gabriela Cid-Chama
The objective of this study is to determine the economic return of poultry litter combustion in boilers to produce bioenergy (thermal and electrical), as this biomass has a high-energy potential due to its component elements, using fuzzy logic to predict moisture and identify the high-impact variables. This is carried out using a proposed 7-stage methodology, which includes a statistical analysis of agricultural systems and practices to identify activities contributing to moisture in poultry litter (for example, broiler chicken management, number of air extractors, and avian population density), and thereby reduce moisture to increase the yield of the combustion process...
July 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28724100/ammonia-and-nitrous-oxide-emissions-from-broiler-houses-with-downtime-windrowed-litter
#2
Kyoung S Ro, Philip A Moore, Ariel A Szogi, Patricia D Millner
An emerging poultry manure management practice is in-house windrowing to disinfect the litter. However, this practice is likely to increase emissions of ammonia (NH) and nitrous oxide (NO) from the windrowed litter. The objective of this study was to quantitatively compare NH and NO emissions from broiler houses with and without in-house windrowing. Two broiler houses at a commercial farm were used to compare the NH and NO emissions. Gas emission measurements were conducted continuously and simultaneously for both the control house (without windrowing) and the house with windrowing during the same production periods...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28712373/impact-of-animal-density-on-cattle-nutrition-in-dry-mediterranean-rangelands-a-faecal-near-ir-spectroscopy-aided-study
#3
S Y Landau, L Dvash, Y Yehuda, H Muklada, G Peleg, Z Henkin, H Voet, E D Ungar
In the context of determining the sustainable carrying capacity of dry-Mediterranean herbaceous rangelands, we examined the effect of animal density on cattle nutrition, which is fundamental to animal performance and welfare. The effects on dietary components of low (0.56 cows/ha; L) and high (1.11 cows/ha; H) animal densities were monitored for three consecutive years in grazing beef cows. In the dry season (summer and early autumn), cows had free access to N-rich poultry litter (PL) given as a dietary supplement...
July 17, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28688736/growth-studies-on-microalgae-euglena-sanguinea-in-various-natural-eco-friendly-composite-media-to-optimize-the-lipid-productivity
#4
Ajith J Kings, R Edwin Raj, L R Monisha Miriam, M Adhi Visvanathan
The environmental and culture conditions of a potential microalgae Euglena sanguinea were optimized for maximizing the biomass productivity. It was found that the organic macronutrient from poultry litter and organic micronutrient of seaweed extract are very effective to enhance the lipid production. Complementing, these organic nutrients with commercial NPK fertilizer, boost up the lipid productivity by 30.9% in comparison with the established standard Euglena medium. The fatty acid profile of the extracted oil by GC-MS reveals its conformity with commercial diesel...
June 26, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28688255/natural-degradation-of-roxarsone-in-contrasting-soils-degradation-kinetics-and-transformation-products
#5
Qing-Long Fu, Lee Blaney, Dong-Mei Zhou
Roxarsone (ROX) is transformed to more toxic arsenicals after land application of ROX-containing poultry litter to agricultural soils. To date, no reports have compared ROX degradation in soils with contrasting properties. In this study, the impact of different incubation conditions on ROX degradation was investigated in red (C-Soil) and yellow-brown (H-Soil) soils. The degradation half-lives of extractable ROX in C-Soil and H-Soil were found to be 130-394d and 4-94d, respectively, indicating that the extractable ROX degraded faster in H-Soil...
July 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28687323/electrophoretic-pattern-of-glutathione-s-transferase-gst-in-antibiotic-resistance-gram-positive-bacteria-from-poultry-litter
#6
Arivalagan Pugazhendhi, Sridevi Dhanarani, Congeevaram Shankar, Piruthiviraj Prakash, Kuppusamy Ranganathan, Rijuta Ganesh Saratale, Kaliannan Thamaraiselvi
The present study is aimed to assess the role of glutathione S-transferase (GST) in antibiotic resistance among the bacteria isolated from the poultry litter and to identify the effect of GST to reduce the antimicrobial activity of antibiotics. Induction of various antibiotics to Staphylococcus, Streptococcus and Micrococcus sp. isolated from the poultry litter showed that the activity of GST was three to four folds higher than those of control. Analysis of the isozyme pattern of GST revealed that variation in the expression may be due to antibiotic resistance...
July 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28652785/prevalence-and-antibiotic-resistance-of-coagulase-negative-staphylococci-isolated-from-poultry-farms-in-three-regions-of-ghana
#7
Vivian Etsiapa Boamah, Christian Agyare, Hayford Odoi, Francis Adu, Stephen Yao Gbedema, Anders Dalsgaard
The use of antibiotics in animal production has been associated with the development and spread of antibiotic-resistant organisms including commensals. Coagulase-negative Staphylococcus (CoNS) species, which were until recently considered non-pathogenic, have been associated with opportunistic infections and high resistance to several antibiotics. This study sought to determine the prevalence, identity, and phenotypic resistance of coagulase-negative Staphylococcus spp. isolated from some selected poultry farms and farm workers in the Ashanti, Brong Ahafo, and Greater Accra regions of Ghana...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28651355/evaluation-of-welfare-parameters-in-laying-hens-on-the-basis-of-a-bavarian-survey
#8
H Louton, S M Bergmann, E Rauch, C Liebers, S Reese, M H Erhard, C Hoeborn, A Schwarzer
Health issues like infestation with poultry red mite (Dermanyssus gallinae) and behavioral problems such as feather pecking and cannibalism are reported as current problems on laying hen farms. However, the epidemiological prevalence of these issues in Bavaria, Germany, is not known. The objective of the present survey was to determine the epidemiological prevalence of health and behavioral parameters and the management of hen farms in practice. The survey was sent to all laying hen farmers with more than 1,000 hens in Bavaria, Germany, and contained questions regarding flock management, behavior problems and health issues...
June 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28649571/impact-of-built-up-litter-and-commercial-antimicrobials-on-salmonella-and-campylobacter-contamination-of-broiler-carcasses-processed-at-a-pilot-mobile-poultry-processing-unit
#9
KaWang Li, Lacey Lemonakis, Brian Glover, Joseph Moritz, Cangliang Shen
The small-scale mobile poultry-processing unit (MPPU) produced raw poultry products are of particular food safety concern due to exemption of USDA poultry products inspection act. Limited studies reported the microbial quality and safety of MPPU-processed poultry carcasses. This study evaluated the Salmonella and Campylobacter prevalence in broiler ceca and on MPPU-processed carcasses and efficacy of commercial antimicrobials against Campylobacter jejuni on broilers. In study I, straight-run Hubbard × Cobb broilers (147) were reared for 38 days on clean-shavings (CS, 75) or built-up-litter (BUL, 72) and processed at an MPPU...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28637332/coarse-particle-inclusion-and-lignocellulose-rich-fiber-addition-in-feed-benefit-performance-and-health-of-broiler-chickens
#10
Sarbast K Kheravii, Robert A Swick, Mingan Choct, Shu-Biao Wu
Measures to improve gut health and nutrient digestibility have been sought due to in-feed antibiotics being phased out in poultry. The appropriate physical structure of feed ingredients and addition of dietary fiber may be beneficial in enhancing gut health in poultry. In this study, the effect of a lignocellulose-rich fiber source and corn particle size on broiler performance, gizzard development, nutrient digestibility, cecal microflora, and litter quality was evaluated. A total of 684 day-old male Ross 308 chicks were randomly allocated to 6 treatments with 6 replicate pens, each housing 19 birds...
June 15, 2017: Poultry Science
https://www.readbyqxmd.com/read/28627067/a-by-product-of-swine-slaughtering-as-a-protein-source-in-broiler-diets-effects-on-performance-composition-of-excreta-litter-quality-and-on-foot-pad-health
#11
M Kölln, A Loi-Brügger, J Kamphues
Foot pad dermatitis (FPD) is of great concern in poultry industry, and dietary strategies are needed to improve foot pad health because of animal welfare and economic reasons. As the main factor for the development of FPD is the DM content of litter (consisting mainly of excreta; Kamphues et al., 2011), there are different dietary approaches to influence this disease pattern. In two consecutive trials, a total of 200 broilers were kept from day 7 until the 35th day of life. They were divided into four groups at each trial and fed with one of four experimental diets, based on wheat and corn mainly, but differing in the protein source: Group 1 was fed a diet with soya bean meal (SBM) as the main protein source, whereas Group 2, Group 3 and Group 4 were assigned to diets with 4, 8 and 12% of a protein-rich (66...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28627062/effects-of-a-carbohydrase-complex-added-in-different-inclusion-rates-in-feeds-for-broilers-on-growth-performance-digesta-viscosity-and-foot-pad-health
#12
M Kölln, H Weiß, J Hankel, J Kamphues
Foot pad dermatitis (FPD) is a widespread disease in poultry and important for economic and animal welfare reasons. It is well recognized that using non-starch polysaccharide (NSP)-degrading enzymes can affect excreta/litter quality (not only in terms of moisture content but also regarding water evaporation) at high stocking densities and might help to prevent FPD and further negative effects of NSP. This study aimed to evaluate effects of a carbohydrase complex (CC) in different dietary inclusion rates on performance, digesta viscosity and foot pad health in broilers from 9 to 37 days of life...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28622473/nonculturability-might-underestimate-the-occurrence-of-campylobacter-in-broiler-litter
#13
Issmat I Kassem, Yosra A Helmy, Dipak Kathayat, Rosario A Candelero-Rueda, Anand Kumar, Loic Deblais, Huang-Chi Huang, Orhan Sahin, Qijing Zhang, Gireesh Rajashekara
We investigated the contribution of litter to the occurrence of Campylobacter on three broiler farms, which were known to have low (LO) and high (HI-A and HI-B) Campylobacter prevalence. For this purpose, we collected litter samples (n = 288) during and after two rearing cycles from each farm. We evaluated the occurrence of Campylobacter (using selective enrichment and quantitative real-time polymerase chain reaction [q-PCR] analysis) in the litter samples as well as the litter's pH and moisture content...
June 16, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28603977/parafac-modeling-of-irradiation-and-oxidation-induced-changes-in-fluorescent-dissolved-organic-matter-extracted-from-poultry-litter
#14
Kiranmayi P Mangalgiri, Stephen A Timko, Michael Gonsior, Lee Blaney
Parallel factor analysis (PARAFAC) applied to fluorescence excitation emission matrices (EEMs) allows quantitative assessment of the composition of fluorescent dissolved organic matter (DOM). In this study, we fit a four-component EEM-PARAFAC model to characterize DOM extracted from poultry litter. The data set included fluorescence EEMs from 291 untreated, irradiated (253.7 nm, 310-410 nm), and oxidized (UV-H2O2, ozone) poultry litter extracts. The four components were identified as microbial humic-, terrestrial humic-, tyrosine-, and tryptophan-like fluorescent signatures...
June 27, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28578737/effects-of-light-emitting-diode-light-v-fluorescent-light-on-growing-performance-activity-levels-and-well-being-of-non-beak-trimmed-w-36-pullets
#15
K Liu, H Xin, P Settar
More energy-efficient, readily dimmable, long-lasting and more affordable light-emitting diode (LED) lights are increasingly finding applications in poultry production facilities. Despite anecdotal evidence about the benefits of such lighting on bird performance and behavior, concrete research data were lacking. In this study, a commercial poultry-specific LED light (dim-to-blue, controllable correlated color temperature (CCT) from 4500 to 5300 K) and a typical compact fluorescent light (CFL) (soft white, CCT=2700 K) were compared with regards to their effects on growing performance, activity levels, and feather and comb conditions of non-beak-trimmed W-36 pullets during a 14-week rearing period...
June 5, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28577406/the-removal-efficiency-and-insight-into-the-mechanism-of-para-arsanilic-acid-adsorption-on-fe-mn-framework
#16
Tista Prasai Joshi, Gong Zhang, Rashmi Koju, Zenglu Qi, Ruiping Liu, Huijuan Liu, Jiuhui Qu
Para arsanilic acid (p-ASA) is extensively used as feed additives in poultry industry, resulting contaminates soil and natural water sources through the use of poultry litter as a fertilizer in croplands. Thus, removal of p-ASA prior to its entering environments is significant to control their environmental risk. Herein, we studied Fe-Mn framework and cubic Fe(OH)3 as promising novel adsorbents for the removal of p-ASA from aqueous solution. The chemical and micro-structural properties of Fe-Mn framework and cubic Fe(OH)3 materials were characterized by X-ray diffraction patterns (XRD), nitrogen adsorption (SBET), zeta (ζ-) potential, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectra (XPS)...
May 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28539090/development-and-application-of-the-compression-frictional-treatment-method-for-sterilizing-and-valorizing-organic-waste
#17
Allison Talley, Robert Heimann, Stergios Vakalis
Confined animal feeding operations are producing large amounts of organic waste with large fractions being mixtures of manure and sawdust. On one hand, the inhomogeneity of the material and the high water content restrict the optimal application of thermal treatment methods. On the other hand, the high concentration of bacteria in these mixed waste streams is an issue of concern. This study introduces a novel process for treating manure and woody biomass mixtures and upgrading them into valuable products. It is defined as compression frictional treatment (CFT) and takes place continuously in a rotary compression unit...
June 6, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28507338/impact-of-trace-minerals-on-wound-healing-of-footpad-dermatitis-in-broilers
#18
Juxing Chen, Guillermo Tellez, Jeffery Escobar, Mercedes Vazquez-Anon
Footpad dermatitis (FPD) is used in the poultry industry as an animal welfare criterion to determine stocking density. Trace minerals (TM) play a role in skin integrity and wound healing. This study evaluated the impact of TM on FPD and consisted of 3 treatments supplemented with 0 (NTM), low (LTM) and high (HTM) TM levels in the same basal diet. On d21, 71% birds in all treatments developed mild FPD and pens were top-dressed with dry litter to promote FPD healing. Compared to NTM, LTM reduced area under the curve (AUC) of FPD lesion scores during d21-42, HTM reduced the AUC of FPD lesion scores during d7-21 and d21-42...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28505481/altered-development-oxidative-stress-and-dna-damage-in-leptodactylus-chaquensis-anura-leptodactylidae-larvae-exposed-to-poultry-litter
#19
L M Curi, P M Peltzer, C Martinuzzi, M A Attademo, S Seib, M F Simoniello, R C Lajmanovich
Poultry litter (PL), which is usually used as organic fertilizer, is a source of nutrients, metals, veterinary pharmaceuticals and bacterial pathogens, which, through runoff, may end up in the nearest aquatic ecosystems. In this study, Leptodactylus chaquensis at different development stages (eggs, larval stages 28 and 31 here referred to as stages I, II and III respectively) were exposed to PL test sediments as follows: 6.25% (T1), 12.5% (T2); 25% (T3); 50% (T4); 75% (T5); 100% PL (T6) and to dechlorinated water as control...
May 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28487878/interactions-of-nitrogen-source-and-rate-and-weed-removal-timing-relative-to-nitrogen-content-in-corn-and-weeds-and-corn-grain-yield
#20
Alexandra M Knight, Wesley J Everman, David L Jordan, Ronnie W Heiniger, T Jot Smyth
Adequate fertility combined with effective weed management is important in maximizing corn (Zea mays L.) grain yield. Corn uptake of nitrogen (N) is dependent upon many factors including weed species and density and the rate and formulation of applied N fertilizer. Understanding interactions among corn, applied N, and weeds is important in developing management strategies. Field studies were conducted in North Carolina to compare corn and weed responses to urea ammonium nitrate (UAN), sulfur-coated urea (SCU), and composted poultry litter (CPL) when a mixture of Palmer amaranth (Amaranthus palmeri S...
2017: International Scholarly Research Notices
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