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Elevated sensitivity to tactile stimuli in stereotypic horses

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Author(s)

Sabrina Briefer Freymond, Déboraht Bardou, Sandrine Beuret, Klaus Zuberbuhler, Iris Bachmann, Elodie F. Briefer

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Abstract

Although stereotypic behaviours are a common problem in captive animals, why certain individuals are more prone to develop them remains elusive. In horses, individuals show considerable differences in how they perceive and react to external events, suggesting that this may partially account for the emergence of stereotypies in this species. In this study, we focussed on crib-biting, the most common stereotypy displayed by horses. We compared how established crib-biters (“CB”=19) and normal controls (“C”=18) differed in response to a standard ‘personality’ assessment test battery, i.e. reactivity to humans, tactile sensitivity, social reactivity, locomotor activity, and curiosity versus fearfulness (both in novel and suddenness situations). Our analyses showed that crib-biters only differed from control horses in their tactile sensitivity, suggesting an elevated sensitivity to tactile stimuli. We suggest that this higher tactile sensitivity could be due to altered dopamine or endogenous opioid physiology, resulting from chronic stress exposition. We discuss these findings in relation to the hypothesis that there may be a genetic predisposition for stereotypic behaviour in horses, and in relation to current animal husbandry and management practises.
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Details

Original languageEnglish
Article number162
Number of pages4
JournalFrontiers in Veterinary Science
Volume6
DOIs
Publication statusPublished - 31 May 2019

    Research areas

  • Personality, Crib-biting horses, Horses, Stereotypes, Coping styles, β endorphin

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ID: 258935039

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