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

Digestive effects of fibre and starch intake in the growing rabbit

INRA Prod. Anim., 9 (4), 243-254.


INRA Station de Recherches Cunicoles, BP 27, 31326 Castanet-Tolosan Cedex


Rabbits can efficiently utilise low-fibre diets containing high contents of digestible energy. Lowering the dietary fibre level, generally associated with an increased starch level, leads to an increased incidence of digestive disturbances, which are frequently lethal for growing rabbits. Dietary fibre and starch levels must then be controlled to allow for both optimal growth rates and feed security. An increase in lignocellulose (ADF, slightly degraded) reduces the feed digestibility and stimulates the digesta rate of passage, without greatly affecting the caecal fermentations. An increase in more easily digestible fibre (hemicellulose + pectins) slightly affects the feed digestibility, but does not slow the rate of passage ; on the other hand it promotes caecal microbial activity (CMA). An ADF increase seems efficient in reducing the incidence of digestive troubles and mortality during the fattening period.

The CMA can also be affected by the quantity of starch entering the caecum, itself dependent on the nature of the starch and the age of the animal. Increasing the dietary starch level could promote digestive troubles, even when ADF level is in agreement with current recommendations. Thus, the "security level" of a feed can not only be defined by a minimum level of ADF, but must also take into account a maximum level of starch. The replacement of starch by easily digestible cell-wall constituents, in a diet having a minimum level of lignocellulose, could be a solution to the antagonism between efficiency and feed security in the growing rabbit.

Download documents