Results 31 to 40 of about 20,872 (301)

Quantifying sources of methane using light alkanes in the Los Angeles basin, California [PDF]

, 2013
Methane (CH4), carbon dioxide (CO2), carbon monoxide (CO), and C2-C5 alkanes were measured throughout the Los Angeles (L.A.) basin in May and June 2010. We use these data to show that the emission ratios of CH4/CO and CH4/CO2 in the L.A. basin are larger
Aikin, KC, Andrews, AE, Atlas, E, Blake, D, Brioude, J, Daube, BC, De Gouw, JA, Dlugokencky, E, Frost, GJ, Gentner, DR, Gilman, JB, Goldstein, AH, Harley, RA, Holloway, JS, Kofler, J, Kuster, WC, Lang, PM, Novelli, PC, Parrish, DD, Peischl, J, Ryerson, TB, Santoni, GW, Trainer, M, Wofsy, SC   +23 more
core   +2 more sources

Quantitative analysis of ruminal methanogenic microbial populations in beef cattle divergent in phenotypic residual feed intake (RFI) offered contrasting diets [PDF]

, 2014
peer-reviewedBackground Methane (CH4) emissions in cattle are an undesirable end product of rumen methanogenic fermentative activity as they are associated not only with negative environmental impacts but also with reduced host feed ...
Carberry, Ciara A, Kelly, Alan K, Kenny, David A., Waters, Sinead M.   +3 more
core   +2 more sources

Enteric methane emission of the Dutch dairy herd : Average and variation of enteric methane emission among the Dutch dairy herd

, 2020
The Netherlands aims to reduce greenhouse gas emissions by 49% in 2030 compared to 1990. In order to achieve this goal the dairy sector needs to reduce methane (CH4) emissions by 1.0 megaton CO2-equivalents compared to 2017. Approximately 80% of the CH4 emission of the dairy sector originates from enteric CH4.
Lisanne Koning, Johan van Riel, Léon Šebek   +2 more
openaire   +4 more sources

Feeding Strategies to Mitigate Enteric Methane Emission from Ruminants in Grassland Systems

Animals, 2022
Ruminants produce approximately 30% of total anthropogenic methane emissions globally. The objective of this manuscript was to review nutritional enteric methane abatement practices for ruminants that are applicable under grazing conditions.
Juan Vargas, Emilio Ungerfeld, Camila Muñoz, Nicolas DiLorenzo   +3 more
doaj   +1 more source

A comparison of the economic value for enteric methane emissions with other biological traits associated with dairy cows [PDF]

This is the first study to derive the economic value of enteric methane produced by a ruminant animal. There is considerable interest globally in selecting for low methane-emitting ruminant livestock, as methane is a potent greenhouse gas.
Bell, Matthew J., Pryce, Jennie, Wilson, Paul   +2 more
core   +1 more source

Advancing national greenhouse gas inventories for agriculture in developing countries : improving activity data, emission factors and software technology [PDF]

, 2013
Peer reviewedPublisher ...
, , , , Colomb V, F Jay Breidt, Granli T, Homer C, IPCC Eggleston H S Srivastava N Tanabe K Baasansuren J, Johnson K A, Kazuyuki Yagi, Klaus Butterbach-Bahl, Leandro Buendia, Lohr S L, Melannie Hartman, Pete Smith, Rasack Nayamuth, Shannon Spencer, Smith P, Stephen M Ogle, Tom Wirth, US-EPA   +21 more
core   +2 more sources

Stoichiometric models for prediction of enteric methane production

Bioscience Journal, 2022
This study aimed to empirically evaluate the adjustment quality of two stoichiometric models of methane production from diets that used different rumen fermentation modulators. We used the models proposed by Moss et al. (2000) and Blümmel et al. (1997).
Tadeu Silva de Oliveira, Alberto Magno Fernandes, Elizabeth Fonsêca Processi, Danielle Ferreira Baffa, Michele Gabriel Camilo   +4 more
openaire   +3 more sources

Meta-analysis of the relationship between dietary starch intake and enteric methane emissions in cattle from in vivo experiments

Journal of Advanced Veterinary and Animal Research
Objective: Different sources and levels of starch in the total mixed ration might result in different rumen fermentation profiles, rumen microbial composition, and enteric methane production.
Agustin Herliatika, Yeni Widiawati, Anuraga Jayanegara, Rakhmad Perkasa Harahap, Diana Andrianita Kusumaningrum, Mohammad Ikhsan Shiddieqy, Wahidin Teguh Sasongko, Sharli Asmairicen, Maureen Chrisye Hadiatry, Alif Shabira Putri, Eko Handiwirawan, Tatan Kostaman, Lisa Praharani, Umi Adiati   +13 more
doaj   +1 more source

Methods for Measuring and Estimating Methane Emission from Ruminants

Animals, 2012
This paper is a brief introduction to the different methods used to quantify the enteric methane emission from ruminants. A thorough knowledge of the advantages and disadvantages of these methods is very important in order to plan experiments, understand
Jørgen Madsen, Ida M. L. D. Storm, Nicolaj I. Nielsen, Anne Louise F. Hellwing   +3 more
doaj   +1 more source

Mitigation of Rumen Methane Emissions with Foliage and Pods of Tropical Trees

Animals, 2020
Methane produced by enteric fermentation contributes to the emission of greenhouse gases (GHG) into the atmosphere. Methane is one of the GHG resulting from anthropogenic activities with the greater global warming contribution.
Jorge Canul-Solis, María Campos-Navarrete, Angel Piñeiro-Vázquez, Fernando Casanova-Lugo, Marcos Barros-Rodríguez, Alfonso Chay-Canul, José Cárdenas-Medina, Luis Castillo-Sánchez   +7 more
doaj   +1 more source