Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


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

Last update: May 2021

Menu Logo Principal

Home page

Christine Leterrier

Christine Leterrier
© Christine Leterrier
Scientific researcher INRAe

Christine is a senior scientist who has been involved in the study of emotions and welfare in poultry. Her present research is mainly focused on the relationship between gut health and behaviour. The aim of this work is to test the hypothesis that the gut microbiota has an influence on emotional behaviour and memory in birds. Dr. Christine Leterrier, is 57 years old, and initially trained as a veterinary doctor. She obtained a Master degree in ethology and her PhD thesis dealt with bone growth and lameness in broiler chickens. She is director of research at INRAe and was co-leader of her research group until 2013. She is a senior scientist who has been involved in the study of joint disorders and behaviour in broiler chickens, and emotions and welfare in poultry. Presently, Christine is studying the microbiota-gut-brain axis in birds. She was involved in the Welfare Quality® programme (2004-2009), two ANR programmes (Coordinator in SNP-BB, Behavioural genetics, 2010-2013; Workpackage leader in EmoFarm, Emotions in farm animals, 2010-2012) and several other international programmes with Germany and the U.K. She has carried out extensive work to characterize leg disorders such as “Twisted Legs” in broiler chickens and examined the involvement of bone growth in the development of this disease. Within the context of the Welfare Quality® program she then investigated new feeding strategies to reduce lameness. She combined her expertise in ethology and stress physiology to investigate stress and emotions in poultry. She was author of the first paper on heart rate variability analysis in freely moving birds and used this method combined with behavioural analyses to investigate emotions. In recent years, the gut microbiota has been shown to play a role in host behaviour and this has led to the concept of the gut-brain axis. Hence Christine’s present research is focused on the role of the gut microbiota on behaviour in birds and how the behavioural consequences of changes in microbiota can help detect chronic stress state. She has demonstrated that a probiotic designed for birds has beneficial effects on emotional reactivity and working memory in Japanese quail. The interaction between microbiota effects and host genotype effects is presently being investigated since they are suspected of explaining variations in susceptibility to diseases and stress.


Christine Leterrier
UMR Physiologie de la Reproduction & des Comportements
Centre INRAE Val-de-Loire
37380 Nouzilly

Phone : 33 (0)2 47 42 79 97

Mail :