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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 (down) Physiology & Behavior Abbreviated Journal
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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ISSN 0031-9384 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5689
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Author Thornton Alex; Lukas Dieter
Title Individual variation in cognitive performance: developmental and evolutionary perspectives Type Journal Article
Year 2012 Publication (down) Philosophical Transactions of the Royal Society B: Biological Sciences Abbreviated Journal Philos Trans R Soc Lond B Biol Sci
Volume 367 Issue 1603 Pages 2773-2783
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Publisher Royal Society Place of Publication Editor
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Notes doi: 10.1098/rstb.2012.0214 Approved no
Call Number Equine Behaviour @ team @ Serial 6555
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Author Van Horik, J.; Clayton, N.; Emery, N.
Title Convergent evolution of cognition in Corvids, Apes and other animals Type Book Chapter
Year 2012 Publication (down) Oxford Handbook of Comparative Evolutionary Psychology Abbreviated Journal
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Publisher Oxford University Press Place of Publication New York Editor Vonk, J.; Shackelford, T.
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Notes Approved no
Call Number Equine Behaviour @ team @ Van Horik2012 Serial 6284
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Author Chittka, L.; Dyer, A.
Title Cognition: Your face looks familiar Type Journal Article
Year 2012 Publication (down) Nature Abbreviated Journal Nature
Volume 481 Issue 7380 Pages 154-155
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Publisher Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. Place of Publication Editor
Language Summary Language Original Title
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ISSN 0028-0836 ISBN Medium
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Notes 10.1038/481154a Approved no
Call Number Equine Behaviour @ team @ Serial 5494
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Author Krueger, Tom
Title Rinder- und Pferdebeweidung ist gut für die Natur Type Journal Article
Year 2012 Publication (down) Junge Wissenscahften Abbreviated Journal
Volume 93 Issue Pages 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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ISSN 0179 8529 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5614
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Author Yeon, S.C.
Title Acoustic communication in the domestic horse (Equus caballus) Type Journal Article
Year 2012 Publication (down) Journal of Veterinary Behavior: Clinical Applications and Research Abbreviated Journal
Volume 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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ISSN 1558-7878 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 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 (down) Journal of Equine Veterinary Science Abbreviated Journal
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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ISSN 0737-0806 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6626
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Author Heyes, C.
Title What's social about social learning? Type Journal Article
Year 2012 Publication (down) J Comp Psychol Abbreviated Journal
Volume 120 Issue Pages
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Call Number Equine Behaviour @ team @ Heyes2012 Serial 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 Type Journal Article
Year 2012 Publication (down) Ital J Mammal Abbreviated Journal
Volume 23 Issue Pages
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Call Number Equine Behaviour @ team @ Blanco2012 Serial 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 Type Journal Article
Year 2012 Publication (down) International Journal of Zoology Abbreviated Journal
Volume 2012 Issue Article ID 162982 Pages
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Abstract 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&#8201;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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Call Number Equine Behaviour @ team @ Serial 5823
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