Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free:

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site:, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Google Analytics

Targeted advertising cookies


The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal

Home page

Yearly methane emissions of digestive origin by cattle in France. Variations with type and level of production

INRA Prod. Anim., 8 (4), 265-272.


INRA Laboratoire Croissance et Métabolismes des Herbivores, Theix 63122 St-Genès Champanelle


Ruminants are sometimes accused of contributing greatly to the greenhouse effect due to their methane production of digestive origin. Daily methane emissions of most types of cattle were determined using respiration chambers. Animal methane emissions of digestive origin by dairy and beef cattle in France were calculated taking into account the various types and levels of animal production, variations in feeding regimen along the year and the number of bovines in each category in 1993.

Yearly methane emission by a dairy cow ranges from 140 to 160 m3 for milk yields ranging from 3400 to 6500 kg per year. Methane production decreases from 41 to 25 l/kg milk for the same range of milk yield. Yearly methane emission averages 120 m3 for a beef cow. It ranges from 56 to 78 m3 for growing dairy or beef cattle depending on type of production and growth rate. However, methane emission per kg carcass produced decreases when body weight gain increases. It ranges from 0.32 to 0.49 m3/kg for dairy cattle and from 0.58 to 1.04 m3/kg for beef cattle when the methane production of the dam over one year is included.

Total methane emissions by cattle in France were about 1.86 109 m3 in 1993, of which 38 % was produced by 4.6 million dairy cows, 6 % by dairy heifers (future breeding herd), 26 % by 4.0 million beef cows, 7 % by beef heifers (future breeding herd) and 23 % by 6.6 million growing cattle destined to meat production. Various means for reducing methane emissions by cattle and other sources are discussed.

Download documents