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Litter ammonia

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https://www.readbyqxmd.com/read/29597354/protein-fermentation-in-the-gut-implications-for-intestinal-dysfunction-in-humans-pigs-and-poultry
#1
Myrthe Suzanne Gilbert, Noortje Ijssennagger, Arie K Kies, Saskia W C van Mil
The amount of dietary protein is associated with intestinal disease in different vertebrate species. In humans, this is exemplified by the association between high protein intake and fermentation metabolite concentrations in patients with inflammatory bowel disease. In production animals, dietary protein intake is associated with post-weaning diarrhea in piglets and with the occurrence of wet litter in poultry. The underlying mechanisms by which dietary protein contributes to intestinal problems remain largely unknown...
March 29, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29415101/urea-hydrolysis-and-calcium-carbonate-precipitation-in-gypsum-amended-broiler-litter
#2
Christopher D Burt, Miguel L Cabrera, Michael J Rothrock, D E Kissel
Broiler () litter is subject to ammonia (NH) volatilization losses. Previous work has shown that the addition of gypsum to broiler litter can increase nitrogen mineralization and decrease NH losses due to a decrease in pH, but the mechanisms responsible for these effects are not well understood. Therefore, three laboratory studies were conducted to evaluate the effect of gypsum addition to broiler litter on (i) urease activity at three water contents, (ii) calcium carbonate precipitation, and (iii) pH. The addition of gypsum to broiler litter increased ammonium concentrations ( < 0...
January 2018: Journal of Environmental Quality
https://www.readbyqxmd.com/read/29381414/a-simple-mathematical-method-to-estimate-ammonia-emission-from-in-house-windrowing-of-poultry-litter
#3
Kyoung S Ro, Ariel A Szogi, Philip A Moore
In-house windrowing between flocks is an emerging sanitary management practice to partially disinfect the built-up litter in broiler houses. However, this practice may also increase ammonia (NH3) emission from the litter due to the increase in litter temperature. The objectives of this study were to develop mathematical models to estimate NH3 emission rates from broiler houses practicing in-house windrowing between flocks. Equations to estimate mass-transfer areas form different shapes windrowed litter (triangular, rectangular, and semi-cylindrical prisms) were developed...
January 30, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/29024064/physiological-and-health-related-response-of-broiler-chickens-fed-diets-containing-raw-full-fat-soya-bean-meal-supplemented-with-microbial-protease
#4
M M Erdaw, R A Perez-Maldonado, P A Iji
A 2 × 3 factorial study (protease: 0 or 1,5000 PROT/kg and raw full-fat soya bean meal [RSBM] replacing the commercial SBM at 0, 45 and 75 g/kg of diet) was conducted to examine the performance of broilers. Phytase (2000 FYT/kg) was uniformly added to each diet, each also replicated six times, with eight birds per replicate. Birds were raised in climate-controlled rooms using sawdust as the bedding material and offered starter, grower and finisher diets. Feed intake (FI) and body weight gain (BWG) were reduced (p < ...
October 10, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28991982/ammonia-oxidizers-in-a-grazing-land-with-a-history-of-poultry-litter-application
#5
Abha Mundepi, Jeanette Norton, Miguel Cabrera, Dorcas Franklin, Mussie Y Habteselassie
Poultry litter (PL) is widely applied on grazing lands in Georgia. However, it is not clear how its long-term use affects soil microorganisms and their function. We examined changes in activity and community structure of ammonia-oxidizing archaea (AOA) and bacteria (AOB) in a grazing land with a history of PL application and compared it to treatment with urea ammonium nitrate (UAN). Soil samples (0-15 cm) were collected in 2009 (after 15 yr of PL application) and in 2013 (after 2 yr of no application). The abundance and community composition of ammonia oxidizers (AO) were determined with molecular techniques that targeted Nitrification potential (NP) was used for measuring their activity...
September 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28919677/influence-of-microclimatic-ammonia-levels-on-productive-performance-of-different-broilers-breeds-estimated-with-univariate-and-multivariate-approaches
#6
Essam S Soliman, Sherif A Moawed, Rania A Hassan
BACKGROUND AND AIM: Birds litter contains unutilized nitrogen in the form of uric acid that is converted into ammonia; a fact that does not only affect poultry performance but also has a negative effect on people's health around the farm and contributes in the environmental degradation. The influence of microclimatic ammonia emissions on Ross and Hubbard broilers reared in different housing systems at two consecutive seasons (fall and winter) was evaluated using a discriminant function analysis to differentiate between Ross and Hubbard breeds...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28854751/poultry-rearing-on-perforated-plastic-floors-and-the-effect-on-air-quality-growth-performance-and-carcass-injuries-experiment-1-thermal-comfort
#7
Eduardo Alves de Almeida, Lilian Francisco Arantes de Souza, Aline Cristina Sant'Anna, Raphael Nogueira Bahiense, Marcos Macari, Renato Luis Furlan
The present study investigated the use of perforated plastic floors in the rearing of male and female poultry under thermal comfort conditions. The study was conducted in 2 climate chambers, in one was conventional poultry litter (wood shavings) and in the other was a perforated plastic floor. The experimental design was a completely randomized design with the factors wood shavings and plastic floor. In each chamber, the animals were divided into 16 experimental pens (8 with males and 8 with females) with a density of 12 birds/m2...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28724100/ammonia-and-nitrous-oxide-emissions-from-broiler-houses-with-downtime-windrowed-litter
#8
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/28652023/ammonia-and-greenhouse-gases-losses-from-mechanically-turned-cattle-manure-windrows-a-regional-composting-network
#9
Haritz Arriaga, Maialen Viguria, Diana M López, Pilar Merino
An on-farm composting network operates in the Basque Country (northern Spain), in which solid manure produced in livestock farms (mostly dairy and beef cattle) is composted through windrow turning. This network aims to produce a valuable resource (compost) for the farmers whereas the volume of the solid manure was reduced at farm level The objective of the study was to assess the gaseous losses (NH3 and GHG) from 6 on-farm composting windrows (either deep litter systems or solid fraction after slurry separation) after turning operations...
December 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28619162/impact-of-treatments-for-recycled-broiler-litter-on-the-viability-and-infectivity-of-microorganisms
#10
Daiane Voss-Rech, Iara Maria Trevisol, Liana Brentano, Virgínia Santiago Silva, Raquel Rebelatto, Fátima Regina Ferreira Jaenisch, Cintia Hiromi Okino, Marcos Antonio Zanella Mores, Arlei Coldebella, Sônia de Avila Botton, Clarissa Silveira Luiz Vaz
The microbiological risk of recycled litter depends on the efficacy of the management system applied to inactivate residual microorganisms and preserve the health of the successive broiler flock. This study aimed to assess the viability and infectivity of the Newcastle Disease Virus (NDV), Infectious Bursal Disease Virus (IBDV) and Salmonella Heidelberg in recycled litter exposed to different treatments. The litter was contaminated with microorganisms and submitted to the treatments (T): T1: shallow fermentation; T2: quicklime (calcium oxide); T3: shallow fermentation followed by addition of quicklime; T4: no treatment...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28604061/evaluating-the-effects-of-bedding-materials-and-elevated-platforms-on-contact-dermatitis-and-plumage-cleanliness-of-commercial-broilers-and-on-litter-condition-in-broiler-houses
#11
E Kaukonen, M Norring, A Valros
1. Experiment 1, comparing wood shavings and ground straw bedding with peat, was performed on 7 broiler farms over two consecutive batches during the winter season. Experiment 2, assessing the effect of elevated (30 cm) platforms, was conducted in three farms replicated with 6 consecutive batches. 2. Footpad lesions were inspected at slaughter following the Welfare Quality® (WQ) assessment and official programme. Hock lesions, plumage cleanliness and litter condition were assessed using the WQ assessment. Litter height, pH, moisture and ammonia were determined...
July 20, 2017: British Poultry Science
https://www.readbyqxmd.com/read/28482091/flue-gas-desulfurization-gypsum-effects-on-urea-degrading-bacteria-and-ammonia-volatilization-from-broiler-litter
#12
Christopher D Burt, Miguel L Cabrera, Michael J Rothrock, D E Kissel
A major concern of the broiler industry is the volatilization of ammonia (NH3) from the mixture of bedding material and broiler excretion that covers the floor of broiler houses. Gypsum has been proposed as a litter amendment to reduce NH3 volatilization, but reports of NH3 abatement vary among studies and the mechanism responsible for decreasing NH3 volatilization is not well understood. The goal of this study was to evaluate the effect of adding 20 or 40% flue-gas desulfurization gypsum (FGDG) to broiler litter on pH, electrical conductivity (EC), water potential, urea-degrading bacteria abundance, NH3 and carbon dioxide (CO2) evolution, and nitrogen (N) mineralization in several 21-d experiments...
August 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28439767/a-bacillus-subtilis-strain-as-probiotic-in-poultry-selection-based-on-in-vitro-functional-properties-and-enzymatic-potentialities
#13
Houda Hmani, Lobna Daoud, Mouna Jlidi, Karim Jalleli, Manel Ben Ali, Adel Hadj Brahim, Mansour Bargui, Alaeddine Dammak, Mamdouh Ben Ali
We have proposed and validate an in vitro probiotic selection, based on enzymatic potentialities associated to well-established probiotic functional properties. A new Bacillus subtilis HB2 isolate, selected based on its high extracellular enzyme production, was chosen as a probiotic candidate for application as animal feed supplement. The HB2 strain showed an excellent acid and bile salts tolerance, a strong adhesion to chick enterocytes and produced antimicrobials against pathogens. An in vivo trial in poultry farming was conducted to evaluate the HB2 probiotic performance...
August 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28390193/functional-amino-acids-in-the-development-of-the-pig-placenta
#14
REVIEW
Guoyao Wu, Fuller W Bazer, Gregory A Johnson, Cassandra Herring, Heewon Seo, Zhaolai Dai, Junjun Wang, Zhenlong Wu, Xiaolong Wang
The mammalian placenta is essential for supplying nutrients (e.g., amino acids and water) and oxygen from the mother to fetus and for removing fetal metabolites (e.g., ammonia and CO2 ) from fetus to mother. Thus, placental growth and development are determinants of fetal survival, growth, and development. Indeed, low birth weight is closely associated with reduced placental growth. Providing gestating gilts or sows with dietary supplementation of arginine and glutamine, increases placental growth (including vascular growth), improves embryonic/fetal growth and survival, and reduces the large variation in birth weight among litters...
April 8, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28339976/effects-of-two-different-broiler-flooring-systems-on-production-performances-welfare-and-environment-under-commercial-production-conditions
#15
H Li, X Wen, R Alphin, Z Zhu, Z Zhou
Research comparing conventional litter and alternative perforated flooring (netting) systems is relatively limited under commercial production conditions. A comprehensive comparison of broiler production performances, welfare quality, and housing environment of two broiler houses with conventional litter and new perforated plastic floors was conducted over four flocks for eight months in eastern China. The two broiler houses each had 31,700 broilers per flock on average and were ventilated using a negative-pressure system...
May 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339948/effects-of-dietary-coarsely-ground-corn-and-3-bedding-floor-types-on-broiler-live-performance-litter-characteristics-gizzard-and-proventriculus-weight-and-nutrient-digestibility
#16
Y Xu, Y M Lin, C R Stark, P R Ferket, C M Williams, J Brake
The effects of zero or 50% dietary coarsely ground corn (CC) in pelleted and screened grower and finisher diets on broilers reared on 3 bedding floor types (plastic net [NET], new pine wood shavings litter [NEW], or old pine wood shavings litter [OLD]) on broiler live performance, litter characteristics, gizzard and proventriculus weight, and apparent ileal digestibility (AID) were studied in a 2 × 3 factorial arrangement of treatments. Fine corn was produced with a hammermill (271 μm) and CC with a roller mill (1145 μm)...
July 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28301246/persistence-of-highly-pathogenic-and-low-pathogenic-avian-influenza-viruses-in-footbaths-and-poultry-manure
#17
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/28046072/effects-of-protease-addition-and-replacement-of-soybean-meal-by-corn-gluten-meal-on-the-growth-of-broilers-and-on-the-environmental-performances-of-a-broiler-production-system-in-greece
#18
Ilias Giannenas, Eleftherios Bonos, Vasileios Anestis, Georgios Filioussis, Dimitrios K Papanastasiou, Thomas Bartzanas, Nikolaos Papaioannou, Athina Tzora, Ioannis Skoufos
An experimental study was conducted to examine the combined effects of adding a dietary protease, reducing the levels of soybean meal (SBM) and introducing corn gluten meal (CGM) in the ration of a group of broilers reared on a commercial Greek farm. Five hundred forty chicks were divided into three dietary treatments with six replicates of thirty birds each. The first group (Control) was fed a conventional diet based on corn and soybean meal, containing 21% w/w crude protein (CP). The second group (Soy-Prot) was supplied a corn and SBM-based diet containing a lower level of CP (20% w/w) and 200 mg of the protease RONOZYME® Proact per kg of feed...
2017: PloS One
https://www.readbyqxmd.com/read/28041672/biochar-lowers-ammonia-emission-and-improves-nitrogen-retention-in-poultry-litter-composting
#19
Eunice Agyarko-Mintah, Annette Cowie, Lukas Van Zwieten, Bhupinder Pal Singh, Robert Smillie, Steven Harden, Flavio Fornasier
The poultry industry produces abundant quantities of nutrient-rich litter, much of which is composted before use as a soil amendment. However, a large proportion of nitrogen (N) in poultry litter is lost via volatilisation during composting, with negative environmental and economic consequences. This study examined the effect of incorporating biochar during composting of poultry litter on ammonia (NH3) volatilisation and N retention. Biochars produced at 550°C from greenwaste (GWB) and poultry litter (PLB) feedstocks were co-composted with a mixture of raw poultry litter and sugarcane straw [carbon (C):N ratio 10:1] in compost bins...
March 2017: Waste Management
https://www.readbyqxmd.com/read/28035260/effect-of-initial-soil-properties-on-six-year-growth-of-15-tree-species-in-tropical-restoration-plantings
#20
Cristina Martínez-Garza, Julio Campo, Martin Ricker, Wolke Tobón
In restoration plantings in degraded pastures, initial soil nutrient status may lead to differential growth of tropical tree species with diverse life history attributes and capacity for N2 fixation. In 2006, we planted 1,440 seedlings of 15 native tree species in 16 fenced plots (30 × 30 m) in a 60-year-old pasture in Los Tuxtlas, Veracruz, Mexico, in two planting combinations. In the first year, we evaluated bulk density, pH, the concentration of organic carbon (C), total nitrogen (N), ammonia (NO3-), nitrate (NH4+), and total phosphorus (P) in the upper soil profile (0-20 cm in depth) of all plots...
December 2016: Ecology and Evolution
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