Next Article in Journal
Supplementation of Ascorbic Acid in Weanling Horses Following Prolonged Transportation
Next Article in Special Issue
Greenhouse Gas Emissions from Calf- and Yearling-Fed Beef Production Systems, With and Without the Use of Growth Promotants
Previous Article in Journal
Why Did You Choose This Pet?: Adopters and Pet Selection Preferences in Five Animal Shelters in the United States
Previous Article in Special Issue
Is the Grass Always Greener? Comparing the Environmental Impact of Conventional, Natural and Grass-Fed Beef Production Systems
Open AccessReview

Methods for Measuring and Estimating Methane Emission from Ruminants

Department of Large Animal Sciences, University of Copenhagen, Grønnegårdsvej 2, DK-1870 Frederiksberg C, Denmark
Department of Animal Science, Aarhus University, AU-Foulum, P.O. Box 50, DK-8830 Tjele, Denmark
AgroTech, Agro Food Park 15, DK-8200 Aarhus N, Denmark
Author to whom correspondence should be addressed.
Animals 2012, 2(2), 160-183;
Received: 9 February 2012 / Revised: 8 March 2012 / Accepted: 2 April 2012 / Published: 13 April 2012
(This article belongs to the Special Issue Climate Change and Livestock Management)
Knowledge about methods used in quantification of greenhouse gasses is currently needed due to international commitments to reduce the emissions. In the agricultural sector one important task is to reduce enteric methane emissions from ruminants. Different methods for quantifying these emissions are presently being used and others are under development, all with different conditions for application. For scientist and other persons working with the topic it is very important to understand the advantages and disadvantage of the different methods in use. This paper gives a brief introduction to existing methods but also a description of newer methods and model-based techniques.
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 and interpret experimental results, and compare them with other studies. The aim of the paper is to describe the principles, advantages and disadvantages of different methods used to quantify the enteric methane emission from ruminants. The best-known methods: Chambers/respiration chambers, SF6 technique and in vitro gas production technique and the newer CO2 methods are described. Model estimations, which are used to calculate national budget and single cow enteric emission from intake and diet composition, are also discussed. Other methods under development such as the micrometeorological technique, combined feeder and CH4 analyzer and proxy methods are briefly mentioned. Methods of choice for estimating enteric methane emission depend on aim, equipment, knowledge, time and money available, but interpretation of results obtained with a given method can be improved if knowledge about the disadvantages and advantages are used in the planning of experiments. View Full-Text
Keywords: methane; ruminants; estimation methods; limitations methane; ruminants; estimation methods; limitations
Show Figures

Figure 1

MDPI and ACS Style

Storm, I.M.L.D.; Hellwing, A.L.F.; Nielsen, N.I.; Madsen, J. Methods for Measuring and Estimating Methane Emission from Ruminants. Animals 2012, 2, 160-183.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Back to TopTop