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methane cattle

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https://www.readbyqxmd.com/read/29767103/comparative-methane-estimation-from-cattle-based-on-total-co-2-production-using-different-techniques
#1
Md N Haque, Hanne H Hansen, Ida M L D Storm, Jørgen Madsen
The objective of this study was to compare the precision of CH4 estimates using calculated CO2 (HP) by the CO2 method (CO2 T) and measured CO2 in the respiration chamber (CO2 R). The CO2 R and CO2 T study was conducted as a 3 × 3 Latin square design where 3 Dexter heifers were allocated to metabolic cages for 3 periods. Each period consisted of 2 weeks of adaptation followed by 1 week of measurement with the CO2 R and CO2 T. The average body weight of the heifer was 226 ± 11 kg (means ± SD). They were fed a total mixed ration, twice daily, with 1 of 3 supplements: wheat (W), molasses (M), or molasses mixed with sodium bicarbonate (Mbic)...
June 2017: Animal nutrition
https://www.readbyqxmd.com/read/29766608/effects-of-supplementary-desalted-mother-liquor-as-replacement-of-commercial-salt-in-diet-for-thai-native-cattle-on-digestibility-energy-and-nitrogen-balance-and-rumen-conditions
#2
Yoshiaki Sato, Wanna Angthong, Patima Butcha, Motoharu Takeda, Kazato Oishi, Hiroyuki Hirooka, Hajime Kumagai
Four Thai native cattle were used in a 4 × 4 Latin square design experiment to evaluate the availability of desalted mother liquor (DML) as replacement of salt in concentrate. Each cattle was assigned to one of the following concentrate feeding treatments: C1, 1% NaCl was added as salt; C2, 2% NaCl was added as salt; D1, 1% NaCl was replaced by DML; D2, 2% NaCl was replaced by DML, on a dry matter (DM) basis. The animals were fed rice straw and experimental concentrates (40:60) at 1.9% of body weight on a DM basis, daily...
May 16, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29753478/short-communication-development-of-an-equation-for-estimating-methane-emissions-of-dairy-cows-from-milk-fourier-transform-mid-infrared-spectra-by-using-reference-data-obtained-exclusively-from-respiration-chambers
#3
A Vanlierde, H Soyeurt, N Gengler, F G Colinet, E Froidmont, M Kreuzer, F Grandl, M Bell, P Lund, D W Olijhoek, M Eugène, C Martin, B Kuhla, F Dehareng
Evaluation and mitigation of enteric methane (CH4 ) emissions from ruminant livestock, in particular from dairy cows, have acquired global importance for sustainable, climate-smart cattle production. Based on CH4 reference measurements obtained with the SF6 tracer technique to determine ruminal CH4 production, a current equation permits evaluation of individual daily CH4 emissions of dairy cows based on milk Fourier transform mid-infrared (FT-MIR) spectra. However, the respiration chamber (RC) technique is considered to be more accurate than SF6 to measure CH4 production from cattle...
May 9, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29741701/the-combined-effects-of-supplementing-monensin-and-3-nitrooxypropanol-on-methane-emissions-growth-rate-and-feed-conversion-efficiency-in-beef-cattle-fed-high-forage-and-high-grain-diets
#4
Diwakar Vyas, Aklilu W Alemu, Sean M McGinn, Stephane M Duval, Maik Kindermann, Karen A Beauchemin
The study objective was to evaluate the combined effects of supplementing monensin (MON) and the methane (CH4) inhibitor 3-nitrooxypropanol (NOP) on enteric CH4 emissions, growth rate and feed conversion efficiency of backgrounding and finishing beef cattle. Two hundred and forty crossbred steers were used in a 238-d feeding study and fed a backgrounding diet for the first 105-d (backgrounding phase), transition diets for 28 d, followed by a finishing diet for 105-d (finishing phase). Treatments were: 1) Control (no additive); 2) MON (monensin supplemented at 33 mg/kg DM; 3) NOP (3-nitrooxypropanol supplemented at 200 mg/kg DM for backgrounding or 125 mg/kg DM for finishing phase); 4) MONOP (33 mg/kg DM MON supplemented with either 200 mg/kg DM or 125 mg/kg DM NOP)...
May 5, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29721290/an-in-vitro-evaluation-of-browser-and-grazer-fermentation-efficiency-and-microbiota-using-european-moose-spring-and-summer-foods
#5
Sophie J Krizsan, Alejandro Mateos-Rivera, Stefan Bertilsson, Annika Felton, Anne Anttila, Mohammad Ramin, Merko Vaga, Helena Gidlund, Pekka Huhtanen
Evolutionary morphological and physiological differences between browsers and grazers contribute to species-specific digestion efficiency of food resources. Rumen microbial community structure of browsers is supposedly adapted to characteristic nutrient composition of the diet source. If this assumption is correct, domesticated ruminants, or grazers, are poor model animals for assessing the nutritional value of food consumed by browsing game species. In this study, typical spring and summer foods of the European moose ( Alces alces ) were combined with rumen fluid collected from both dairy cows ( Bos taurus ) and from moose, with the aim of comparing fermentation efficiency and microbial community composition...
April 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29680642/symposium-review-uncertainties-in-enteric-methane-inventories-measurement-techniques-and-prediction-models
#6
A N Hristov, E Kebreab, M Niu, J Oh, A Bannink, A R Bayat, T B Boland, A F Brito, D P Casper, L A Crompton, J Dijkstra, M Eugène, P C Garnsworthy, N Haque, A L F Hellwing, P Huhtanen, M Kreuzer, B Kuhla, P Lund, J Madsen, C Martin, P J Moate, S Muetzel, C Muñoz, N Peiren, J M Powell, C K Reynolds, A Schwarm, K J Shingfield, T M Storlien, M R Weisbjerg, D R Yáñez-Ruiz, Z Yu
Ruminant production systems are important contributors to anthropogenic methane (CH4 ) emissions, but there are large uncertainties in national and global livestock CH4 inventories. Sources of uncertainty in enteric CH4 emissions include animal inventories, feed dry matter intake (DMI), ingredient and chemical composition of the diets, and CH4 emission factors. There is also significant uncertainty associated with enteric CH4 measurements. The most widely used techniques are respiration chambers, the sulfur hexafluoride (SF6 ) tracer technique, and the automated head-chamber system (GreenFeed; C-Lock Inc...
April 18, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29606168/temperament-and-dominance-relate-to-feeding-behaviour-and-activity-in-beef-cattle-implications-for-performance-and-methane-emissions
#7
P Llonch, M Somarriba, C A Duthie, S Troy, R Roehe, J Rooke, M J Haskell, S P Turner
In beef cattle, feeding behaviour and activity are associated with feed efficiency and methane (CH4) emissions. This study aimed to understand the underlying traits responsible for the contribution of cattle behaviour to individual differences in feed efficiency, performance and CH4 emissions. A total of 84 steers (530±114 kg BW) of two different breeds (crossbreed Charolais and Luing) were used. The experiment was a 2×2×3 factorial design with breed, basal diets (concentrate v. mixed) and dietary treatments (no additive, calcium nitrate or rapeseed cake) as the main factors...
April 2, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29557319/dietary-fat-sources-affect-feed-intake-digestibility-rumen-microbial-populations-energy-partition-and-methane-emissions-in-different-beef-cattle-genotypes
#8
C Kaewpila, K Sommart, M Mitsumori
The mitigation of enteric methane emission in beef cattle production is important for reducing feed energy loss and increasing environmental sustainability. The main objective of this study was to evaluate the effect of different oilseeds included in fermented total mixed rations (whole soyabean seed (SBS, control), whole kapok seed (KPS) and cracked oil palm fruit (OPF)) on feed intake, digestibility, rumen microbial populations, energy partition and methane emissions in different cattle genotypes (Charolais crossbred v...
March 20, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29552605/data-to-calculate-emissions-intensity-for-individual-beef-cattle-reared-on-pasture-based-production-systems
#9
G A McAuliffe, T Takahashi, R J Orr, P Harris, M R F Lee
With increasing concern about environmental burdens originating from livestock production, the importance of farming system evaluation has never been greater. In order to form a basis for trade-off analysis of pasture-based cattle production systems, liveweight data from 90 Charolais × Hereford-Friesian calves were collected at a high temporal resolution at the North Wyke Farm Platform (NWFP) in Devon, UK. These data were then applied to the Intergovernmental Panel on Climate Change (IPCC) modelling framework to estimate on-farm methane emissions under three different pasture management strategies, completing a foreground dataset required to calculate emissions intensity of individual beef cattle...
April 2018: Data in Brief
https://www.readbyqxmd.com/read/29550127/short-communication-the-effect-of-linseed-oil-and-dgat1-k232a-polymorphism-on-the-methane-emission-prediction-potential-of-milk-fatty-acids
#10
S van Gastelen, E C Antunes-Fernandes, K A Hettinga, J Dijkstra
Several in vivo CH4 measurement techniques have been developed but are not suitable for precise and accurate large-scale measurements; hence, proxies for CH4 emissions in dairy cattle have been proposed, including the milk fatty acid (MFA) profile. The aim of the present study was to determine whether recently developed MFA-based prediction equations for CH4 emission are applicable to dairy cows with different diacylglycerol o-acyltransferase 1 (DGAT1) K232A polymorphism and fed diets with and without linseed oil...
March 14, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29549830/the-hydrolytic-stage-in-high-solids-temperature-phased-anaerobic-digestion-improves-the-downstream-methane-production-rate
#11
P Buffière, M Dooms, S Hattou, H Benbelkacem
The role of the hydrolytic stage in high solids temperature phased anaerobic digestion was investigated with a mixture of cattle slurry and maize silage with variable ratios (100, 70 and 30% volatile solids coming from cattle slurry). It was incubated for 48 h at 37, 55, 65 and 72 °C. Soluble chemical oxygen demand and biochemical methane potential were measured at 0, 24 and 48 h. Higher temperatures improved the amount of solubilized COD, which confirmed previously reported results. Nevertheless, solubilization mostly took place during the first 24 h...
July 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29498588/modelling-methane-emission-mitigation-by-anaerobic-digestion-effect-of-storage-conditions-and-co-digestion
#12
Veronica Moset, R Wahid, A Ward, H B Møller
In this work the methane conversion factor (MCF) of untreated and anaerobically digested cattle manure (CM) as a function of storage temperature, time and co-digestion was measured in an in vitro experiment and modelled based on IPCC (2006) methodology (Tier 2). For this, one sample of untreated CM, one sample of mono-digested CM and three samples of CM co-digested with grass were incubated at seven different temperatures (from 5°C to 50°C) over 346 days. The main results showed that ultimate methane yield (B0 ) of CM is higher than the B0 reported by the IPCC (2006)...
March 13, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29450980/prediction-of-enteric-methane-production-yield-and-intensity-in-dairy-cattle-using-an-intercontinental-database
#13
Mutian Niu, Ermias Kebreab, Alexander N Hristov, Joonpyo Oh, Claudia Arndt, André Bannink, Ali R Bayat, André F Brito, Tommy Boland, David Casper, Les A Crompton, Jan Dijkstra, Maguy A Eugène, Phil C Garnsworthy, Md Najmul Haque, Anne L F Hellwing, Pekka Huhtanen, Michael Kreuzer, Bjoern Kuhla, Peter Lund, Jørgen Madsen, Cécile Martin, Shelby C McClelland, Mark McGee, Peter J Moate, Stefan Muetzel, Camila Muñoz, Padraig O'Kiely, Nico Peiren, Christopher K Reynolds, Angela Schwarm, Kevin J Shingfield, Tonje M Storlien, Martin R Weisbjerg, David R Yáñez-Ruiz, Zhongtang Yu
Enteric methane (CH4 ) production from cattle contributes to global greenhouse gas emissions. Measurement of enteric CH4 is complex, expensive, and impractical at large scales; therefore, models are commonly used to predict CH4 production. However, building robust prediction models requires extensive data from animals under different management systems worldwide. The objectives of this study were to (1) collate a global database of enteric CH4 production from individual lactating dairy cattle; (2) determine the availability of key variables for predicting enteric CH4 production (g/day per cow), yield [g/kg dry matter intake (DMI)], and intensity (g/kg energy corrected milk) and their respective relationships; (3) develop intercontinental and regional models and cross-validate their performance; and (4) assess the trade-off between availability of on-farm inputs and CH4 prediction accuracy...
February 16, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29415174/the-influence-of-cattle-grazing-on-methane-fluxes-and-engaged-microbial-communities-in-alpine-forest-soils
#14
Mira Mutschlechner, Nadine Praeg, Paul Illmer
Recent dynamics and uncertainties in global methane budgets necessitate a dissemination of current knowledge on the controls of sources and sinks of atmospheric methane. Forest soils are considered to be efficient methane sinks; however, as they are microbially mediated they are sensitive to anthropogenic influences and tend to switch from being sinks to being methane sources. With regard to global changes in land use, the present study aimed at (i) investigating the influence of grazing on flux rates of methane in forest soils, (ii) deducing possible (a)biotic factors regulating these fluxes, and (iii) gaining an insight into the complex interactions between methane-cycling microorganisms and ecosystem functioning...
May 1, 2018: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29415114/greenhouse-gas-and-ammonia-emissions-from-different-stages-of-liquid-manure-management-chains-abatement-options-and-emission-interactions
#15
Erangu Purath Mohankumar Sajeev, Wilfried Winiwarter, Barbara Amon
Farm livestock manure is an important source of ammonia and greenhouse gases. Concerns over the environmental impact of emissions from manure management have resulted in research efforts focusing on emission abatement. However, questions regarding the successful abatement of manure-related emissions remain. This study uses a meta-analytical approach comprising 89 peer-reviewed studies to quantify emission reduction potentials of abatement options for liquid manure management chains from cattle and pigs. Analyses of emission reductions highlight the importance of accounting for interactions between emissions...
January 2018: Journal of Environmental Quality
https://www.readbyqxmd.com/read/29415102/applicability-of-eddy-covariance-to-estimate-methane-emissions-from-grazing-cattle
#16
Trevor W Coates, Marcelo A Benvenutti, Thomas K Flesch, Ed Charmley, Sean M McGinn, Deli Chen
Grazing systems represent a significant source of enteric methane (CH), but available techniques for quantifying herd scale emissions are limited. This study explores the capability of an eddy covariance (EC) measurement system for long-term monitoring of CH emissions from grazing cattle. Measurements were made in two pasture settings: in the center of a large grazing paddock, and near a watering point where animals congregated during the day. Cattle positions were monitored through time-lapse images, and this information was used with a Lagrangian stochastic dispersion model to interpret EC fluxes and derive per-animal CH emission rates...
January 2018: Journal of Environmental Quality
https://www.readbyqxmd.com/read/29390094/energy-costs-of-feeding-excess-protein-from-corn-based-by-products-to-finishing-cattle
#17
Jenny S Jennings, Beverly E Meyer, Pablo J Guiroy, N Andy Cole
The increased use of by-products in finishing diets for cattle leads to diets that contain greater concentrations of crude protein (CP) and metabolizable protein (MP) than required. The hypothesis was that excess dietary CP and MP would increase maintenance energy requirements because of the energy costs of removing excess N as urea in urine. To evaluate the potential efficiency lost, two experiments were performed to determine the effects of feeding excess CP and MP to calves fed a finishing diet at 1 × maintenance energy intake (Exp...
March 6, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29353756/dry-anaerobic-co-digestion-of-food-waste-and-cattle-manure-impact-of-total-solids-substrate-ratio-and-thermal-pre-treatment-on-methane-yield-and-quality-of-biomanure
#18
Vijayalakshmi Arelli, Sameena Begum, Gangagni Rao Anupoju, Kranti Kuruti, Shailaja S
The objective of the present study is to assess the impact of TS concentration, substrate mixing ratio (co digestion) and thermal pretreatment on biogas production, methane yield, VS reduction (%) and quality of biomanure through dry anaerobic digestion (DAD) of food waste (FW) and cattle manure (CM). Results divulged that the optimum methane yield and biomanure of 0.18 and 0.21 m3 CH4 /(kg VS reduced) and 3.15 and 2.8 kg/kg waste was obtained from FW at TS of 25% and 30% at an HRT of 41 and 31 days respectively whereas it was 0...
April 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29331458/genetic-correlations-between-methane-production-and-fertility-health-and-body-type-traits-in-danish-holstein-cows
#19
L Zetouni, M Kargo, E Norberg, J Lassen
Our aim was to investigate the genetic correlations between CH4 production and body conformation, fertility, and health traits in dairy cows. Data were collected from 10 commercial Holstein herds in Denmark, including 5,758 cows with records for body conformation traits, 7,390 for fertility traits, 7,439 for health traits, and 1,397 with individual CH4 measurements. Methane production was measured during milking in automatic milking systems, using a sniffer approach. Correlations between CH4 and several different traits were estimated...
March 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29291489/bedding-additives-reduce-ammonia-emission-and-improve-crop-n-uptake-after-soil-application-of-solid-cattle-manure
#20
Ghulam Abbas Shah, Ghulam Mustafa Shah, Muhammad Imtiaz Rashid, Jeroen C J Groot, Bouba Traore, Egbert A Lantinga
This study examined the influences of three potential additives, i.e., lava meal, sandy soil top-layer and zeolite (used in animal bedding) amended solid cattle manures on (i) ammonia (NH3 ), dinitrous oxide (N2 O), carbon dioxide (CO2 ) and methane (CH4 ) emissions and (ii) maize crop or grassland apparent N recovery (ANR). Diffusion samplers were installed at 20 cm height on grassland surface to measure the concentrations of NH3 from the manures. A photoacoustic gas monitor was used to quantitate the fluxes of N2 O, CH4 and CO2 after manures' incorporation into the maize-field...
March 1, 2018: Journal of Environmental Management
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