Records |
Author |
Henry, S.; Zanella, A.J.; Sankey, C.; Richard-Yris, M.-A.; Marko, A.; Hausberger, M. |
Title |
Adults may be used to alleviate weaning stress in domestic foals (Equus caballus) |
Type |
Journal Article |
Year |
2012 |
Publication |
Physiology & Behavior |
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Volume |
106 |
Issue |
4 |
Pages |
428-438 |
Keywords |
Weaning; Social influence; Abnormal behaviours; Young-adult interactions; Welfare; Horse |
Abstract |
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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Author |
Thornton Alex; Lukas Dieter |
Title |
Individual variation in cognitive performance: developmental and evolutionary perspectives |
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Journal Article |
Year |
2012 |
Publication |
Philosophical Transactions of the Royal Society B: Biological Sciences |
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Philos Trans R Soc Lond B Biol Sci |
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367 |
Issue |
1603 |
Pages |
2773-2783 |
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Royal Society |
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doi: 10.1098/rstb.2012.0214 |
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Equine Behaviour @ team @ |
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6555 |
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Author |
Van Horik, J.; Clayton, N.; Emery, N. |
Title |
Convergent evolution of cognition in Corvids, Apes and other animals |
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2012 |
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Oxford Handbook of Comparative Evolutionary Psychology |
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Oxford University Press |
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New York |
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Vonk, J.; Shackelford, T. |
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Equine Behaviour @ team @ Van Horik2012 |
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6284 |
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Author |
Chittka, L.; Dyer, A. |
Title |
Cognition: Your face looks familiar |
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Journal Article |
Year |
2012 |
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Nature |
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Nature |
Volume |
481 |
Issue |
7380 |
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154-155 |
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Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. |
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0028-0836 |
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10.1038/481154a |
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Equine Behaviour @ team @ |
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5494 |
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Author |
Krueger, Tom |
Title |
Rinder- und Pferdebeweidung ist gut für die Natur |
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Journal Article |
Year |
2012 |
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Junge Wissenscahften |
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93 |
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28-35 |
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Abstract |
Rinder und Pferde werden in den Abruzzen das ganze Jahr auf großen Weiden gehalten. Dies fördert nachweislich den Artenreichtum, verbessert die Bodenqualität und trägt durch Kohlenstoffbindung zum Klimaschutz bei. |
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0179 8529 |
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Equine Behaviour @ team @ |
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5614 |
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Author |
Yeon, S.C. |
Title |
Acoustic communication in the domestic horse (Equus caballus) |
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Journal Article |
Year |
2012 |
Publication |
Journal of Veterinary Behavior: Clinical Applications and Research |
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7 |
Issue |
3 |
Pages |
179-185 |
Keywords |
horse; communication; vocalization |
Abstract |
Equine vocalization and acoustic sounds can communicate a horse’s emotional state, physiological state, and situation to other individuals, including other horses and humans. These vocalizations and acoustic sounds can be divided into several types. The whinny, nicker, squeal, blow, snore, snort, roar, and groan are typical types of horse vocalizations and acoustic sounds. The sound localization thresholds of horses are markedly poorer than those of other large mammals, such as humans and elephants. The audiogram of horse has shown their best sensitivity and hearing range in which it perceives sound. Laryngeal diseases, such as laryngeal hemiplegia, dorsal displacement of the soft palate, and alar fold paralysis, can cause laryngeal sounds in the upper airway. The analyses of horses’ vocalizations and laryngeal sounds that are reviewed in this article were conducted with computer-aided analysis programs using spectrograms and spectra that evaluate several parameters, including amplitude, fundamental frequency, duration, and formants. Laryngeal sound analysis could be a useful method for diagnosing upper airway diseases. This article presents a review of the literature describing scientific analyses of horse vocalizations and acoustic sounds to elucidate equine acoustic communications and aid in the development of horse-human bonds. |
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1558-7878 |
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Equine Behaviour @ team @ |
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5681 |
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Author |
Werhahn, H.; Hessel, E.F.; Van den Weghe, H.F.A. |
Title |
Competition Horses Housed in Single Stalls (II): Effects of Free Exercise on the Behavior in the Stable, the Behavior during Training, and the Degree of Stress |
Type |
Journal Article |
Year |
2012 |
Publication |
Journal of Equine Veterinary Science |
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Volume |
32 |
Issue |
1 |
Pages |
22-31 |
Keywords |
Horse; Turnout; Single stall; Behavior; Hrv |
Abstract |
Although housing horses in single stalls limits their natural behavior to a great extent, this housing system is widespread in Germany, especially for competition horses. To improve the welfare of this system, free exercise on pastures or paddocks is deemed suitable, but it is also feared because of injuries and decreased willingness or motivation to perform. In the present study, three treatments were investigated with regard to their effect on the behavior of six competition horses in the stable, behavior during training, and on their degree of stress: daily training without free exercise (no turnout [NT]), solitary turnout for 2 hours after training, and 2-hour turnout in groups of two after training (group turnout). The horses' behavior in the stable was continuously analyzed through video recordings (2 pm to 6 am) on 3 days at the end of each treatment. The degree of stress was evaluated daily by heart rate variability at rest. The behavior during training was evaluated by a questionnaire answered by the riders, and the distance covered during training was measured by global positioning system. When NT was allowed, the horses showed less lying in the stable compared with the treatments with turnout. Heart rate variability measurements resulted in great individual differences, but generally, there was a higher degree of stress shown with the treatment NT according to the following parameters: standard deviation of inter-beat-intervals (SDNN), square root of the mean of the sum of the squares of differences between successive inter-beat-intervals (RMSSD), and ratio between low frequency and high frequency (LF/HF). The willingness to perform was evaluated as being slightly better in the treatments with turnout than in the treatment without turnout. |
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0737-0806 |
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Equine Behaviour @ team @ |
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6626 |
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Author |
Heyes, C. |
Title |
What's social about social learning? |
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Journal Article |
Year |
2012 |
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J Comp Psychol |
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120 |
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Equine Behaviour @ team @ Heyes2012 |
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6228 |
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Author |
Blanco, J.C.; Yolanda, C. |
Title |
Surveying wolves without snow: a critical review of the methods used in Spain. Hystrix |
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Journal Article |
Year |
2012 |
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Ital J Mammal |
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23 |
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Equine Behaviour @ team @ Blanco2012 |
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6460 |
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Author |
Sigurjonsdottir, H.; Thorhallsdottir, A.; Hafthorsdottir, H.; Granquist S. |
Title |
The Behaviour of Stallions in a Semiferal Herd in Iceland: Time Budgets, Home Ranges, and Interactions |
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Journal Article |
Year |
2012 |
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International Journal of Zoology |
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2012 |
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Article ID 162982 |
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A permanent herd of Icelandic horses with four stallions and their harems was studied for a total of 316 hours in a large pasture (215 ha) in May 2007 in Iceland. Interactions between stallions of different harems and other aspects of the horses' behaviour were studied. One stallion and nine horses were introduced into the pasture prior to the study to examine the reactions of the resident stallions to a newcomer. The stallions spent significantly less time grazing than other horses and were more vigilant. Home ranges overlapped, but harems never mixed. The stallions prevented interactions between members of different harems indirectly by herding. Generally, interactions between resident stallions were nonviolent. However, encounters with the introduced stallion were more aggressive and more frequent than between the other stallions. Here, we show that four harems can share the same enclosure peacefully. The social network seems to keep aggression at a low level both within the harems and the herd as a whole. We encourage horse owners to consider the feasibility of keeping their horses in large groups because of low aggression and because such a strategy gives the young horses good opportunities to develop normally, both physically and socially. |
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Equine Behaviour @ team @ |
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5823 |
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