keyword
MENU ▼
Read by QxMD icon Read
search

methane cattle

keyword
https://www.readbyqxmd.com/read/28454003/relative-evaluation-of-micronutrients-mn-and-its-respective-nanoparticles-nps-as-additives-for-the-enhanced-methane-generation
#1
Sudharshan Juntupally, Sameena Begum, Sarat Kumar Allu, Shalini Nakkasunchi, Mrudula Madugula, Gangagni Rao Anupoju
In the present work, effect of micro nutrients (MN) (NiCl2, Fe2O3, CoCl2, (NH4)6Mo7O24) was compared with nanoparticles (NPs) of respective MN with cattle manure (CM) slurry in single and bi-phasic anaerobic digestion (AD) at a hydraulic residence time (HRT) of 20days at a mesophilic temperature of 37±2°C for the generation of biogas with enhanced methane (70-80%). Experiments were also carried out with CM slurry as control. During single phase AD, highest biogas production of 0.16L/(gVS reduced) and 0.14L/(gVS reduced) was obtained from Fe3O4 NPs and CoCl2 MN respectively whereas in bi-phasic AD 0...
April 14, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28417460/effect-of-high-fat-diet-and-growth-stage-on-the-diversity-and-composition-of-intestinal-microbiota-in-healthy-bovine-livestock
#2
Shengyin Jiao, Hui Cao, Yue Dai, Junhui Wu, Jia Lv, Renjia Du, Bei Han
BACKGROUND: This study aimed to investigate the composition of bacteria in the bovine rectum and their functions during growth, in relation to different diets. Fecal samples were collected from 6-, 12-, 18- and 24-month cattle fed high-fat diet, and healthy female parents fed regular-diet. Total DNA was amplified (V3-V4 of 16S rRNA) and submitted to barcode-DNA-pyrosequencing. Then, intestinal microbiota profiles and functions were analysed. RESULTS: A total of 114,512 OTUs were detected from the 1,802,243 sequences obtained...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28389712/implications-from-distinct-sulfate-reducing-bacteria-populations-between-cattle-manure-and-digestate-in-the-elucidation-of-h2s-production-during-anaerobic-digestion-of-animal-slurry
#3
Benoit St-Pierre, André-Denis G Wright
Biogas produced from the anaerobic digestion of animal slurry consists mainly of methane (CH4) and carbon dioxide (CO2), but also includes other minor gases, such as hydrogen sulfide (H2S). Since it can act as a potent corrosive agent and presents a health hazard even at low concentrations, H2S is considered an undesirable by-product of anaerobic digestion. Sulfate-reducing bacteria (SRBs) have been identified as the main biological source of H2S in a number of natural, biological, and human-made habitats, and thus represent likely candidate microorganisms responsible for the production of H2S in anaerobic manure digesters...
April 7, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28380597/optimizing-test-procedures-for-estimating-daily-methane-and-carbon-dioxide-emissions-in-cattle-using-short-term-breath-measures
#4
P F Arthur, I M Barchia, C Weber, T Bird-Gardiner, K A Donoghue, R M Herd, R S Hegarty
Respiration chambers are considered the reference method for quantifying the daily CH production rate (MPR) and CO production rate (CPR) of cattle; however, they are expensive, labor intensive, cannot be used in the production environment, and can be used to assess only a limited number of animals. Alternative methods are now available, including those that provide multiple short-term measures of CH and CO, such as the GreenFeed Emission Monitoring (GEM) system. This study was conducted to provide information for optimizing test procedures for estimating MPR and CPR of cattle from multiple short-term CH and CO records...
February 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28380522/optimising-the-proportion-of-selection-candidates-measured-for-feed-intake-for-a-beef-cattle-breeding-objective-that-includes-methane-emissions
#5
D J Cottle, J H J van der Werf
Reducing daily methane production (DMP) via selection for lower estimated daily (pasture) feed intake (DFI) has the potential to be more cost effective than direct selection for DMP. Daily feed intake has a high heritability and high genetic correlation to DMP and has a potential lower cost of measurement. This study's main aim was to determine for a breeding nucleus the optimal proportion of randomly selected young male and female cattle in which to estimate DFI. This optimum proportion was determined by modeling the measurement costs and response to selection of Angus cattle on a (standard industry) Angus breeding index (ABI) augmented with DFI and DMP in a combined breeding objective (BO), but without DMP being measured...
March 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28366969/impact-of-reduced-tillage-on-greenhouse-gas-emissions-and-soil-carbon-stocks-in-an-organic-grass-clover-ley-winter-wheat-cropping-sequence
#6
Maike Krauss, Reiner Ruser, Torsten Müller, Sissel Hansen, Paul Mäder, Andreas Gattinger
Organic reduced tillage aims to combine the environmental benefits of organic farming and conservation tillage to increase sustainability and soil quality. In temperate climates, there is currently no knowledge about its impact on greenhouse gas emissions and only little information about soil organic carbon (SOC) stocks in these management systems. We therefore monitored nitrous oxide (N2O) and methane (CH4) fluxes besides SOC stocks for two years in a grass-clover ley - winter wheat - cover crop sequence...
February 15, 2017: Agriculture, Ecosystems & Environment
https://www.readbyqxmd.com/read/28348861/first-insight-into-the-faecal-microbiota-of-the-high-arctic-muskoxen-ovibos-moschatus
#7
Alejandro Salgado-Flores, Mathias Bockwoldt, Live H Hagen, Phillip B Pope, Monica A Sundset
The faecal microbiota of muskoxen (n=3) pasturing on Ryøya (69° 33' N 18° 43' E), Norway, in late September was characterized using high-throughput sequencing of partial 16S rRNA gene regions. A total of 16 209 high-quality sequence reads from bacterial domains and 19 462 from archaea were generated. Preliminary taxonomic classifications of 806 bacterial operational taxonomic units (OTUs) resulted in 53.7-59.3 % of the total sequences being without designations beyond the family level. Firmicutes (70.7-81...
July 2016: Microbial Genomics
https://www.readbyqxmd.com/read/28335096/estimation-of-methane-emissions-from-local-and-crossbreed-beef-cattle-in-dak-lak-province-of-vietnam
#8
Carlos Alberto Ramírez-Restrepo, Dung Van Tien, Ngoan Le Duc, Mario Herrero, Phung Le Dinh, Dung Dinh Van, Sen Le Thi Hoa, Cuong Vu Chi, Cesar Solano-Patiño, Amy M Lerner, Timothy D Searchinger
Objective: This study was aimed at evaluating effects of cattle breed resources and alternative mixed-feeding practices on meat productivity and emission intensities from household farming systems in Daklak Province, Vietnam. Methods: Records from Local Yellow x Red Sindhi (Bos indicus; Lai Sind) and ½ Limousin, ½ Drought Master and ½ Red Angus cattle during the growth (0 to 21 months) and fattening (22 to 25 months) periods were used to better understand variations on meat productivity and enteric methane emissions...
March 21, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28299854/induction-of-a-transient-acidosis-in-the-rumen-simulation-technique
#9
M Eger, S Riede, G Breves
Feeding high concentrate diets to cattle results in an enhanced production of short-chain fatty acids by the micro-organisms in the rumen. Excessive fermentation might result in subclinical or clinical rumen acidosis, characterized by low pH, alterations in the microbial community and lactate production. Here, we provide an in vitro model of a severe rumen acidosis. A transient acidosis was induced in the rumen simulation technique by lowering bicarbonate, dihydrogen phosphate and hydrogen phosphate concentrations in the artificial saliva while providing a concentrate-to-forage ratio of 70:30...
March 16, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28237223/importance-of-weak-base-poplar-wastes-to-process-performance-and-methane-yield-in-solid-state-anaerobic-digestion
#10
Yiqing Yao, Shulin Chen, Gopi Krishna Kafle
Failure of methane yield is common for anaerobic digestion (AD) of "weak-acid/acid" wastes alone. In order to verify the importance of pH of materials on the process performance and the methane yield, the "weak-base" wastes-poplar wastes (PW) were used as substrate of solid-state AD (SS-AD). The results show that PW could be used for efficient methane yield after NaOH treatment, the total methane yield was 81.1 L/kg volatile solids (VS). PW also could be used for anaerobic co-digestion with high-pH cattle slurry (CM)...
May 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28222832/the-impact-of-divergent-breed-types-and-diets-on-methane-emissions-rumen-characteristics-and-performance-of-finishing-beef-cattle
#11
C-A Duthie, M Haskell, J J Hyslop, A Waterhouse, R J Wallace, R Roehe, J A Rooke
This study was undertaken to further develop our understanding of the links between breed, diet and the rumen microbial community and determine their effect on production characteristics and methane (CH4) emissions from beef cattle. The experiment was of a 2×2 factorial design, comprising two breeds (crossbred Charolais (CHX); purebred Luing (LU)) and two diets (concentrate-straw or silage-based). In total, 80 steers were used and balanced for sire within each breed, farm of origin and BW across diets. The diets (fed as total mixed rations) consisted of (g/kg dry matter (DM)) forage to concentrate ratios of either 500 : 500 (Mixed) or 79 : 921 (Concentrate)...
February 22, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28205235/differences-in-the-nutrient-concentrations-in-vitro-methanogenic-potential-and-other-fermentative-traits-of-tropical-grasses-and-legumes-for-beef-production-systems-in-northern-australia
#12
Zoey Durmic, Carlos A Ramírez-Restrepo, Chris Gardiner, Christopher J O'Neill, Eman Hussein, Phillip E Vercoe
BACKGROUND: In northern Australia, beef cattle grazed extensively on tropical rangelands are responsible for 5 % of the nation's total greenhouse gas emissions. Methane (CH4 ) is a potent greenhouse gas and in grazing ruminants might be mitigated by selecting forages that, when consumed, produce less CH4 when fermented by rumen microbes. This study examined variability in the in vitro fermentation patterns including CH4 production of selected tropical grasses and legumes to identify candidates for CH4 mitigation in grazing livestock in northern Australia...
February 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28199171/climate-adaptation-of-tropical-cattle
#13
W Barendse
There is sustained growth in the number of tropical cattle, which represent more than half of all cattle worldwide. By and large, most research in tropical areas is still focused on breeds of cattle, their particular advantages or disadvantages in tropical areas, and the tropical forages or feeds that could be usefully fed to them. A consistent issue for adaptation to climate is the heat of tropical environments. Changing the external characteristics of the animal, such as color and coat characteristics, is one way to adapt, and there are several major genes for these traits...
February 8, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/28177350/effects-of-mass-airflow-rate-through-an-open-circuit-gas-quantification-system-when-measuring-carbon-emissions
#14
Stacey A Gunter, James A Bradford, Corey A Moffet
Methane (CH) and carbon dioxide (CO) represent 11 and 81%, respectively, of all anthropogenic greenhouse gas emissions. Agricultural CH emissions account for approximately 43% of all anthropogenic CH emissions. Most agricultural CH emissions are attributed to enteric fermentation within ruminant livestock; hence, the heightened interest in quantifying and mitigating this source. The automated, open-circuit gas quantification system (GQS; GreenFeed, C-Lock, Inc., Rapid City, SD) evaluated here can be placed in a pasture with grazing cattle and can measure their CH and CO emissions with spot sampling...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28161178/invited-review-large-scale-indirect-measurements-for-enteric-methane-emissions-in-dairy-cattle-a-review-of-proxies-and-their-potential-for-use-in-management-and-breeding-decisions
#15
E Negussie, Y de Haas, F Dehareng, R J Dewhurst, J Dijkstra, N Gengler, D P Morgavi, H Soyeurt, S van Gastelen, T Yan, F Biscarini
Efforts to reduce the carbon footprint of milk production through selection and management of low-emitting cows require accurate and large-scale measurements of methane (CH4) emissions from individual cows. Several techniques have been developed to measure CH4 in a research setting but most are not suitable for large-scale recording on farm. Several groups have explored proxies (i.e., indicators or indirect traits) for CH4; ideally these should be accurate, inexpensive, and amenable to being recorded individually on a large scale...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28143676/pretreatment-of-lignocellulosic-biomass-by-cattle-rumen-fluid-for-methane-production-bacterial-flora-and-enzyme-activity-analysis
#16
Yasunori Baba, Yu Matsuki, Yumi Mori, Yoshihisa Suyama, Chika Tada, Yasuhiro Fukuda, Masanori Saito, Yutaka Nakai
We attempted to develop a pretreatment method for methane fermentation of lignocellulosic biomass using cattle rumen fluid, treated as slaughterhouse waste. When rapeseed (Brassica napus L.) was added to the methane fermentation after being solubilized with rumen fluid, 1.5 times more methane was produced compared with untreated rapeseed. Analysis of the bacterial flora during rumen fluid treatment using the MiSeq next-generation sequencer showed that the predominant phylum shifted from Bacteroidetes, composed of amylolytic Prevotella spp...
January 29, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28100018/conversion-of-amazon-rainforest-to-agriculture-alters-community-traits-of-methane-cycling-organisms
#17
Kyle M Meyer, Ann M Klein, Jorge L M Rodrigues, Klaus Nüsslein, Susannah G Tringe, Babur S Mirza, James M Tiedje, Brendan J M Bohannan
Land use change is one of the greatest environmental impacts worldwide, especially to tropical forests. The Amazon rainforest has been subject to particularly high rates of land use change, primarily to cattle pasture. A commonly observed response to cattle pasture establishment in the Amazon is the conversion of soil from a methane sink in rainforest, to a methane source in pasture. However, it is not known how the microorganisms that mediate methane flux are altered by land use change. Here, we use the deepest metagenomic sequencing of Amazonian soil to date to investigate differences in methane-cycling microorganisms and their traits across rainforest and cattle pasture soils...
January 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28076447/lower-methane-emissions-from-yak-compared-with-cattle-in-rusitec-fermenters
#18
Jiandui Mi, Jianwei Zhou, Xiaodan Huang, Ruijun Long
Globally methane (CH4) emissions from ruminant livestock account for 29% of total CH4 emissions. Inherited variation about CH4 emissions of different animal species might provide new opportunity for manipulating CH4 production. Six rumen-simulating fermenters (Rusitec) were set up for this study lasting for 16 d. The diet consisted of forage to concentrate ratio of 50:50 with barley straw as the forage. Treated vessels were supplied with rumen fluid from yak or cattle (3 vessels per animal species). Microbial growth was measured using 15N as a marker...
2017: PloS One
https://www.readbyqxmd.com/read/28061817/the-rumen-microbial-metaproteome-as-revealed-by-sds-page
#19
Timothy J Snelling, R John Wallace
BACKGROUND: Ruminal digestion is carried out by large numbers of bacteria, archaea, protozoa and fungi. Understanding the microbiota is important because ruminal fermentation dictates the efficiency of feed utilisation by the animal and is also responsible for major emissions of the greenhouse gas, methane. Recent metagenomic and metatranscriptomic studies have helped to elucidate many features of the composition and activity of the microbiota. The metaproteome provides complementary information to these other -omics technologies...
January 7, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28046156/feed-intake-growth-and-body-and-carcass-attributes-of-feedlot-steers-supplemented-with-two-levels-of-calcium-nitrate-or-urea
#20
R S Hegarty, J Miller, N Oelbrandt, L Li, J P M Luijben, D L Robinson, J V Nolan, H B Perdok
Nitrate supplementation has been shown to be effective in reducing enteric methane emission from ruminants, but there have been few large-scale studies assessing the effects of level of nitrate supplementation on feed intake, animal growth, or carcass and meat quality attributes of beef cattle. A feedlot study was conducted to assess the effects of supplementing 0.25 or 0.45% NPN in dietary DM as either urea (Ur) or calcium nitrate (CaN) on DMI, ADG, G:F, and carcass attributes of feedlot steers ( = 383). The levels of NPN inclusion were selected as those at which nitrate has previously achieved measurable mitigation of enteric methane...
December 2016: Journal of Animal Science
keyword
keyword
6376
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"