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Sankey, C.; Henry, S.; Clouard, C.; Richard-Yris, M.-A.; Hausberger, M. |
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Title |
Asymmetry of behavioral responses to a human approach in young naive vs. trained horses |
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Year |
2011 |
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Physiology & Behavior |
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104 |
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3 |
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464-468 |
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Laterality; Emotionality; Human approach; Horse |
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The aim of this study was to investigate the impact of training experience on young horses (Equus caballus)’ lateralized responses to an approaching human. The results show that the one year old untrained horses display asymmetrical responses to an approaching human, with more negative reactions (escapes, threats) when approached from the left side, while approaches towards the right shoulder elicited more positive behaviors. On the contrary, two years old trained horses reacted equally positively to approaches and contact on both sides. Our findings support those of previous studies investigating a link between emotionality and laterality and confirm the role of the left hemisphere in the processing of novel or negative stimuli. Moreover, the data underline the impact work and training can have on this laterality in horses. |
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0031-9384 |
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Equine Behaviour @ team @ |
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5688 |
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Henry, S.; Zanella, A.J.; Sankey, C.; Richard-Yris, M.-A.; Marko, A.; Hausberger, M. |
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Title |
Adults may be used to alleviate weaning stress in domestic foals (Equus caballus) |
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Journal Article |
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2012 |
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Physiology & Behavior |
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106 |
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4 |
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428-438 |
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Keywords |
Weaning; Social influence; Abnormal behaviours; Young-adult interactions; Welfare; Horse |
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The present study aims to investigate whether the presence of unrelated adult horses at weaning would reduce the social stress of weaning and the emergence of undesirable behaviours. We tested this hypothesis in 32 domestic foals by comparing short and medium term behavioural and physiological responses to weaning in foals maintained in homogeneous groups of peers (PW) to those of foals grouped with both peers and unrelated adults (AW). In total, three trials were conducted, which each trial consisting of one AW group and one PW group. In all foals, weaning was followed by increased vocalization, increased locomotion and increased salivary cortisol concentration. However, signs of stress were less pronounced and shorter in duration in weanlings housed with unrelated adults (e.g. whinnies: p < 0.05; salivary cortisol: p < 0.05). Only foals without adults exhibited increased aggressiveness towards peers (p < 0.05) and abnormal behaviours (p < 0.05) such as excessive wood-chewing and redirected sucking towards peers. In conclusion, introducing adults to minimize weaning stress in foals and later on aggressiveness and abnormal behaviours appears as the most promising approach to date. |
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0031-9384 |
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Equine Behaviour @ team @ |
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5689 |
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Sankey, C.; Henry, S.; André, N.; Richard-Yris, M.-A.; Hausberger, M. |
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Title |
Do Horses Have a Concept of Person? |
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Journal Article |
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Year |
2011 |
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PLoS ONE |
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PLoS ONE |
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6 |
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3 |
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e18331 EP - |
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<sec> <title>Background</title> <p>Animals' ability for cross-modal recognition has recently received much interest. Captive or domestic animals seem able to perceive cues of human attention and appear to have a multisensory perception of humans.</p> </sec> <sec> <title>Methodology/Principal Findings</title> <p>Here, we used a task where horses have to remain immobile under a vocal order to test whether they are sensitive to the attentional state of the experimenter, but also whether they behave and respond differently to the familiar order when tested by a familiar or an unknown person. Horses' response varied according to the person's attentional state when the order was given by an unknown person: obedience levels were higher when the person giving the order was looking at the horse than when he was not attentive. More interesting is the finding that whatever the condition, horses monitored much more and for longer times the unknown person, as if they were surprised to hear the familiar order given by an unknown voice.</p> </sec> <sec> <title>Conclusion/Significance</title> <p>These results suggest that recognition of humans may lie in a global, integrated, multisensory representation of specific individuals, that includes visual and vocal identity, but also expectations on the individual's behaviour in a familiar situation.</p> </sec> |
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Public Library of Science |
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Equine Behaviour @ team @ |
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5708 |
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Author |
Hausberger, M.; Richard-Yris, M.-A. |
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Title |
Individual differences in the domestic horse, origins, development and stability |
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2005 |
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The domestic horse : the origins, development, and management of its behaviour |
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33-52 |
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Cambridge University Press 2005 |
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Cambridge |
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Mills, D.S.; McDonnell, |
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13 978-0-521-81414-6 |
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Equine Behaviour @ team @ Feh2005 |
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4819 |
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