Results 101 to 110 of about 17,871 (238)

Archaeal abundance in post-mortem ruminal digesta may help predict methane emissions from beef cattle [PDF]

open access: yes, 2014
The Rowett Institute of Nutrition and Health and SRUC are funded by the Rural and Environment Science and Analytical Services Division (RESAS) of the Scottish Government.
Duthie, Carol-Anne   +9 more
core   +3 more sources

Effects of Diet Composition and Yeast Cell Wall Supplementation on Ruminal Fermentation, Gas Kinetics, Methane Production and Digestibility Assessed In Vitro Using Gas Production and DaisyII Incubator Systems

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
This study evaluated the effects of yeast cell wall (YCW) supplementation in diets with varying roughage‐to‐concentrate (R:C) ratios using in vitro techniques. The results demonstrated that YCW supplementation significantly reduced total gas and methane production, particularly in high‐roughage diets, without compromising dry matter digestibility or ...
Muhammad Shazaib Ramay   +3 more
wiley   +1 more source

Physiological Evidence for Isopotential Tunneling in the Electron Transport Chain of Methane-Producing Archaea [PDF]

open access: yes, 2017
Many, but not all, organisms use quinones to conserve energy in their electron transport chains. Fermentative bacteria and methane-producing archaea (methanogens) do not produce quinones but have devised other ways to generate ATP. Methanophenazine (MPh)
Buan, Nicole R., Duszenko, Nikolas
core   +1 more source

Modeling of breath methane concentration profiles during exercise on an ergometer [PDF]

open access: yes, 2016
We develop a simple three compartment model based on mass balance equations which quantitatively describes the dynamics of breath methane concentration profiles during exercise on an ergometer.
Jandacka, Martin   +9 more
core   +2 more sources

Are Insects a Feasible Option or Just a Hyped Promise in Ruminant Nutrition? A Systematic Review of What Has Been Done and What Lies Ahead

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Insects are emerging as sustainable alternatives for ruminants. This systematic review evaluates in vitro and in vivo evidence on insect‐based feeds in ruminant nutrition, discussing their outcomes and elucidating underlying mechanisms. Despite promising effects on rumen fermentation, growth, and product quality, inconsistencies related to insect ...
Navid Ghavipanje   +6 more
wiley   +1 more source

A Genetic System for Methanocaldococcus jannaschii: An Evolutionary Deeply Rooted Hyperthermophilic Methanarchaeon

open access: yesFrontiers in Microbiology, 2019
Phylogenetically deeply rooted methanogens belonging to the genus of Methanocaldococcus living in deep-sea hydrothermal vents derive energy exclusively from hydrogenotrophic methanogenesis, one of the oldest respiratory metabolisms on Earth.
Dwi Susanti   +4 more
doaj   +1 more source

Host-linked soil viral ecology along a permafrost thaw gradient [PDF]

open access: yes, 2018
Climate change threatens to release abundant carbon that is sequestered at high latitudes, but the constraints on microbial metabolisms that mediate the release of methane and carbon dioxide are poorly understood1,2,3,4,5,6,7.
Bolduc, Benjamin   +22 more
core   +1 more source

White Is a New Shade of Blue Carbon: A Case Study of a Traditional Salt Production Pond That is a Net Carbon Sink

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract To address for the first time the carbon budget of traditional salterns, we measured the diel, seasonal, and spatial variability of water‐air CO2‐eq fluxes (CH4 and CO2) and the Organic Carbon (OC) stock and burial rate in the sediment. Temperature, salinity, dissolved oxygen, pH and wind were assessed as potential environmental drivers of the
Ana Alexandre   +9 more
wiley   +1 more source

Mode of action of Saccharomyces cerevisiae in enteric methane mitigation in pigs

open access: yesAnimal, 2018
The objectives of this study were to determine the effect and mode of action of Saccharomyces cerevisiae (YST2) on enteric methane (CH4) mitigation in pigs.
Y.L. Gong   +5 more
doaj   +1 more source

Effects of Temperature on Mercury Methylation and Demethylation in Boreal Wetland Soils

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Wetlands are critical sites for methylmercury (MeHg) production, a neurotoxin that bioaccumulates in organisms and biomagnifies in aquatic food webs. Net MeHg production in wetland soil depends on the balance between microbially mediated MeHg production and the degradation of MeHg through both microbial and abiotic pathways.
Sayuri Sagisaka Méndez   +1 more
wiley   +1 more source

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