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Master Thesis

Effets d'un probiotique sur la réactivité émotionnelle et les capacités de mémoire de la caille japonaise (Coturnix japonica)

Abstract : The intestinal microbiota influences the emotional behaviour and the cognitive abilities in mammals. We decide to study these effects in birds, through the Japanese quail model. Three lines of quails were tested. They have very different levels of emotional reactivity. The LTI line is very reactive whereas the STI is not. The CTI line is not selected on emotional behavior. In order to modify microbiota, half of the animal of each line received a feed supplemented with a probiotic, the other half received a standard feed (control). We measured the emotional reactivity (tonic immobility test, open field), the socio-sexual motivation (treadmill test) and the working memory and long-term memory abilities. In the STI supplemented quails tonic immobility durations was shorter than in controls and there was a positive effect on the progression of emotional reactivity between the two sessions of the open field test (males, p=0,05). The LTI supplemented quail had a higher locomotive activity in the long term memory device (females, p=0,0210). Working memory performances were improved by the probiotic in the LTI quails (p=0,0209) and in the STI quails (p=0,0573). Probiotic had no effect on growth. To summarize, the probiotic had beneficial effects on the emotional reactivity and memory. It is necessary to investigate the link between these characteristics and the microbiota, since they are pivotal to the coping abilities in farm animals.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-00942675
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Submitted on : Thursday, February 6, 2014 - 11:24:23 AM
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Séverine Parois. Effets d'un probiotique sur la réactivité émotionnelle et les capacités de mémoire de la caille japonaise (Coturnix japonica). Sciences agricoles. 2013. ⟨dumas-00942675⟩

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