Emotionality modulates the effect of chronic stress on feeding behaviour in birds.
Chronic stress is a long-lasting negative emotional state that induces negative consequences on animals' psycho-physiological state. This study aimed at assessing whether unpredictable and repeated negative stimuli (URNS) influence feeding behaviour in quail. Sixty-four quail were exposed to UR...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3911932?pdf=render |
| _version_ | 1818411523184263168 |
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| author | Angélique Favreau-Peigné Ludovic Calandreau Paul Constantin Bernard Gaultier Aline Bertin Cécile Arnould Agathe Laurence Marie-Annick Richard-Yris Cécilia Houdelier Sophie Lumineau Alain Boissy Christine Leterrier |
| author_facet | Angélique Favreau-Peigné Ludovic Calandreau Paul Constantin Bernard Gaultier Aline Bertin Cécile Arnould Agathe Laurence Marie-Annick Richard-Yris Cécilia Houdelier Sophie Lumineau Alain Boissy Christine Leterrier |
| author_sort | Angélique Favreau-Peigné |
| collection | DOAJ |
| description | Chronic stress is a long-lasting negative emotional state that induces negative consequences on animals' psycho-physiological state. This study aimed at assessing whether unpredictable and repeated negative stimuli (URNS) influence feeding behaviour in quail. Sixty-four quail were exposed to URNS from day 17 to 40, while 64 quail were undisturbed. Two lines divergently selected on their inherent emotionality were used to assess the effect of genetic factors on the sensitivity to URNS. All quail were submitted to a sequential feeding procedure (using two diets of different energetic values) which placed them in a contrasting situation. Behavioural tests were performed to assess the emotional reactivity of the two lines. Results confirmed that differences exist between them and that their emotional reactivity was enhanced by URNS. Diet preferences, motivation and daily intake were also measured. URNS did not change the preferences for the hypercaloric diet compared to the hypocaloric diet in choice tests, but they reduced daily intakes in both lines. Motivations for each diet were differently affected by URNS: they decreased the motivation to eat the hypercaloric diet in quail selected for their low inherent fearfulness whereas they increased the motivation to eat the hypocaloric diet in quail selected for their high inherent fearfulness, which suggested a devaluation process in the former and a compensatory behaviour in the later. Growth was furthermore reduced and laying delayed by URNS in both lines. In conclusion, the exposure to URNS induced interesting changes in feeding behaviour added with an increase in emotional reactivity and an alteration of production parameters. This confirms that both lines of quail experienced a chronic stress state. However differences in feed motivation and emotional reactivity between lines under chronic stress suggested that they experienced different emotional state and use different ways to cope with it depending on their genetic background. |
| first_indexed | 2024-12-14T10:32:46Z |
| format | Article |
| id | doaj.art-4848e3059ef34597be35453d412d0228 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-14T10:32:46Z |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-4848e3059ef34597be35453d412d02282022-12-21T23:06:05ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0192e8724910.1371/journal.pone.0087249Emotionality modulates the effect of chronic stress on feeding behaviour in birds.Angélique Favreau-PeignéLudovic CalandreauPaul ConstantinBernard GaultierAline BertinCécile ArnouldAgathe LaurenceMarie-Annick Richard-YrisCécilia HoudelierSophie LumineauAlain BoissyChristine LeterrierChronic stress is a long-lasting negative emotional state that induces negative consequences on animals' psycho-physiological state. This study aimed at assessing whether unpredictable and repeated negative stimuli (URNS) influence feeding behaviour in quail. Sixty-four quail were exposed to URNS from day 17 to 40, while 64 quail were undisturbed. Two lines divergently selected on their inherent emotionality were used to assess the effect of genetic factors on the sensitivity to URNS. All quail were submitted to a sequential feeding procedure (using two diets of different energetic values) which placed them in a contrasting situation. Behavioural tests were performed to assess the emotional reactivity of the two lines. Results confirmed that differences exist between them and that their emotional reactivity was enhanced by URNS. Diet preferences, motivation and daily intake were also measured. URNS did not change the preferences for the hypercaloric diet compared to the hypocaloric diet in choice tests, but they reduced daily intakes in both lines. Motivations for each diet were differently affected by URNS: they decreased the motivation to eat the hypercaloric diet in quail selected for their low inherent fearfulness whereas they increased the motivation to eat the hypocaloric diet in quail selected for their high inherent fearfulness, which suggested a devaluation process in the former and a compensatory behaviour in the later. Growth was furthermore reduced and laying delayed by URNS in both lines. In conclusion, the exposure to URNS induced interesting changes in feeding behaviour added with an increase in emotional reactivity and an alteration of production parameters. This confirms that both lines of quail experienced a chronic stress state. However differences in feed motivation and emotional reactivity between lines under chronic stress suggested that they experienced different emotional state and use different ways to cope with it depending on their genetic background.http://europepmc.org/articles/PMC3911932?pdf=render |
| spellingShingle | Angélique Favreau-Peigné Ludovic Calandreau Paul Constantin Bernard Gaultier Aline Bertin Cécile Arnould Agathe Laurence Marie-Annick Richard-Yris Cécilia Houdelier Sophie Lumineau Alain Boissy Christine Leterrier Emotionality modulates the effect of chronic stress on feeding behaviour in birds. PLoS ONE |
| title | Emotionality modulates the effect of chronic stress on feeding behaviour in birds. |
| title_full | Emotionality modulates the effect of chronic stress on feeding behaviour in birds. |
| title_fullStr | Emotionality modulates the effect of chronic stress on feeding behaviour in birds. |
| title_full_unstemmed | Emotionality modulates the effect of chronic stress on feeding behaviour in birds. |
| title_short | Emotionality modulates the effect of chronic stress on feeding behaviour in birds. |
| title_sort | emotionality modulates the effect of chronic stress on feeding behaviour in birds |
| url | http://europepmc.org/articles/PMC3911932?pdf=render |
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