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Author Ligout, S.; Porter, R.-H. url  openurl
  Title Social recognition in mammals: Mechanisms and sensorial bases Type Journal Article
  Year 2006 Publication Productions Animales Abbreviated Journal (down) Prod. Anim.  
  Volume 19 Issue 2 Pages 119-133  
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  Abstract Social recognition plays a major role in the mediation of interactions between individuals and the organisation of societies. During the last 20 years, numerous studies have investigated the adaptive significance, underlying mechanisms and sensory basis of individual recognition of kin as well as non-kin. The results indicate that the recognition of conspecifics involves complex, flexible processes that are widespread throughout the vertebrate kingdom. Such recognition can be based upon different mechanisms and sensory modalities, and influenced by diverse factors. Learned phenotypic traits of conspecifics through familiarisation, including oneself, is the fundamental mechanism implicated in recognition. Animals become directly familiar with others with which they interact. Moreover, kin of familiar conspecifics may be discriminated because of their resemblance to the known individuals. An animal's genotype and environmental variables may both contribute to its recognisable individual signatures (e.g. distinctive olfactory, visual, or auditory characteristics). In general, the study of social recognition enhances our understanding of the cognitive world of animals.  
  Address INRA, CNRS, UMR Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France  
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  Notes Export Date: 23 October 2008; Source: Scopus Approved yes  
  Call Number Equine Behaviour @ team @ Serial 4568  
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Author Hanson, R.P.; Trainer, D.O. openurl 
  Title Significance of changing ecology on the epidemiology of arboviruses in the United States Type Journal Article
  Year 1969 Publication Proceedings, Annual Meeting of the United States Animal Health Association Abbreviated Journal (down) Proc Annu Meet U S Anim Health Assoc  
  Volume 73 Issue Pages 291-294  
  Keywords Animals; Arthropod Vectors; Disease Reservoirs; *Ecology; *Encephalitis, Arbovirus; *Horse Diseases; Horses; Humans; United States  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0082-8750 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:5278181 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2742  
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Author Mench, J.A.; Morrow-Tesch, J.; Chu, L.-R. isbn  openurl
  Title Environmental enrichment for farm animals Type Journal Article
  Year 1998 Publication Lab Animal Abbreviated Journal (down) Lab Anim.  
  Volume 27 Issue Pages 32-36  
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  ISSN ISBN ISSN : 0093-7355 Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6188  
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Author Judge, P.G.; de Waal, F.B.; Paul, K.S.; Gordon, T.P. openurl 
  Title Removal of a trauma-inflicting alpha matriline from a group of rhesus macaques to control severe wounding Type Journal Article
  Year 1994 Publication Laboratory animal science Abbreviated Journal (down) Lab Anim Sci  
  Volume 44 Issue 4 Pages 344-350  
  Keywords *Aggression; Animals; Female; *Macaca mulatta; Male; *Monkey Diseases; *Social Dominance; Wounds and Injuries/epidemiology/prevention & control/*veterinary  
  Abstract Wounding in an 83-member group of rhesus macaques (Macaca mulatta) housed at the Yerkes Regional Primate Research Center Field Station became excessive to the point that intervention was deemed necessary. When observations indicated that three females from the group's alpha matriline were principally responsible for the wounding, the matriline (N = 7) was removed from the group. This study was conducted to document an atypical pattern of wounding in this group and to evaluate the effectiveness of removal as a procedure for controlling injuries. The aggression rates of 21 adult subjects and the wounds of all group members were recorded before and after the removal procedure and compared with those in a similar-sized group. Removing the alpha matriline did not alter aggression rates in the group or the rank order among the remaining matrilines. Aggression rates in the experimental group were also not significantly different from those in the comparison group before or after the removal. With the alpha matriline present, wounding levels in the group were significantly higher than those in the comparison group. After removal of the matriline, the frequency of wounds decreased significantly to levels similar to those of the comparison group. The pattern of excess wounding attributed to the extracted alpha females was idiosyncratic, involving removal of large patches of skin from the hindquarters of adult females or removal of the distal portion of the fingers, toes, or tail from juveniles.(ABSTRACT TRUNCATED AT 250 WORDS)  
  Address Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30329  
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  ISSN 0023-6764 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:7983846 Approved no  
  Call Number refbase @ user @ Serial 207  
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Author van Breda, E. doi  openurl
  Title A non-natural head-neck position (rollkur) during training results in less acute stress in elite trained dressage horses Type Journal Article
  Year 2006 Publication Journal of Applied Animal Welfare Science Abbreviated Journal (down) Journal of Applied Animal Welfare Science  
  Volume 9 Issue 1 Pages 59-64  
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  Abstract This study measured parameters of stress in recreational, trained horses (REC; n = 7) and elite (International Grand Prix level) trained, dressage horses (DRES; n = 5). The training of the DRES horses uses an unnatural head?neck position (Rollkur), whereas in the REC horses such training techniques are not common. The study measured stress by using heart rate variability analysis for 30 min postfeeding in the morning and 30 min postexercise after a morning training session. The study found no significant difference at rest between the REC and DRES horses. During the posttraining measurements, however, the DRES horses showed, among others, a less sympathetic and increased parasympathetic dominance. These results suggest that DRES horses tend to have less acute stress than do REC horses postexercise. The findings of this study suggest maintaining the health and well-being of DRES horses despite nonnatural, biomechanical positions.  
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  Publisher Routledge Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 1088-8705 ISBN Medium  
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  Notes doi: 10.1207/s15327604jaws0901_5 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5639  
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Author Steinhoff-Wagner, J. url  doi
openurl 
  Title Coat Clipping of Horses: A Survey Type Journal Article
  Year 2019 Publication Journal of Applied Animal Welfare Science Abbreviated Journal (down) Journal of Applied Animal Welfare Science  
  Volume 22 Issue 2 Pages 171-187  
  Keywords Equine, thermoregulation, shaving, winter pelage removal  
  Abstract Coat clipping is a common practice in sport horses; however, timing, purpose, technique, and clips vary widely, as do the management and feeding of a clipped horse. The aim of this study was to collect data regarding common clipping practices. A questionnaire was published online in Germany and contained 32 questions. Four hundred ninety-eight people answered at least one question, and 373 individuals (7% male, 93% female; ages 14–59 years) completed all the questions. Clipped horses were predominantly used as sport horses (68%), and they were either clipped immediately before or during the winter season (88%) or year-round (7%). The clipping date was scheduled according to hair length (52%), sweat amount (47%), and drying time (47%). Participants primarily used two clips: the hunter clip and the blanket clip, both without clipping the head (23% each). The majority of the clipped horses wore a blanket day and night (> 90%). Future studies with observations in the field are needed to support survey data in an effort to develop welfare recommendations for clipping practices utilized with horses.  
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  Publisher Routledge Place of Publication Editor  
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  ISSN 1088-8705 ISBN Medium  
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  Notes doi: 10.1080/10888705.2018.1454319 Approved no  
  Call Number Equine Behaviour @ team @ Serial 6613  
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Author Henderson, A.J.Z. doi  openurl
  Title Don't fence me in: managing psychological well being for elite performance horses Type Journal Article
  Year 2007 Publication Journal of Applied Animal Welfare Science : JAAWS Abbreviated Journal (down) J. Appl. Anim. Welf. Sci.  
  Volume 10 Issue 4 Pages 309-329  
  Keywords *Animal Husbandry; Animal Welfare; Animals; *Behavior, Animal; Horses/*psychology; *Physical Conditioning, Animal; *Stereotyped Behavior  
  Abstract This article posits that stereotypical behavior patterns and the overall psychological well being of today's performance horse could be substantially enhanced with care that acknowledges the relationship between domesticated horses and their forerunners. Feral horses typically roam in stable, social groups over large grazing territories, spending 16-20 hr per day foraging on mid- to poor-quality roughage. In contrast, today's elite show horses live in relatively small stalls, eat a limited-but rich-diet at specific feedings, and typically live in social isolation. Although the horse has been domesticated for more than 6000 years, there has been no selection for an equid who no longer requires an outlet for these natural behaviors. Using equine stereotypies as a welfare indicator, this researcher proposes that the psychological well being of today's performance horse is compromised. Furthermore, the article illustrates how minimal management changes can enhance horses' well being while still remaining compatible with the requirements of the sport-horse industry. The article discusses conclusions in terms of Fraser, Weary, Pajor, and Milligan's “integrative welfare model” (1997).  
  Address Department of Psychology, Simon Fraser University, Burnaby, British Columbia, Canada. zamoyska@shaw.ca  
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  ISSN 1088-8705 ISBN Medium  
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  Notes PMID:17970632 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4363  
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Author Pfister, J.A.; Stegelmeier, B.L.; Cheney, C.D.; Ralphs, M.H.; Gardner, D.R. url  openurl
  Title Conditioning taste aversions to locoweed (Oxytropis sericea) in horses Type Journal Article
  Year 2002 Publication Journal of Animal Science Abbreviated Journal (down) J. Anim. Sci.  
  Volume 80 Issue 1 Pages 79-83  
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  Abstract Locoweed (Oxytropis sericea) is a serious poisoning problem for horses grazing on infested rangelands in the western United States. Our objectives were to determine 1) whether lithium chloride or apomorphine would condition aversions to palatable foods, and at what doses, and 2) whether horses could be averted to fresh locoweed in a pen and grazing situation. Apomorphine was not an acceptable aversive agent because at the dose required to condition an aversion (> or = 0.17 mg/kg BW), apomorphine induced unacceptable behavioral effects. Lithium chloride given via stomach tube at 190 mg/kg BW conditioned strong and persistent aversions to palatable feeds with minor signs of distress. Pen and grazing tests were conducted in Colorado to determine if horses could be averted to fresh locoweed. Pen tests indicated that most horses (5/6) were completely averted from locoweed. Treated horses ate 34 g of fresh locoweed compared to 135 g for controls (P < 0.01) during three pen tests when offered 150 g per test. One horse (T) in the treatment group ate locoweed each time it was offered in the pen, but ate no locoweed while grazing. In the grazing trial, control horses averaged 8.6% of bites of locoweed (P < 0.01) during the grazing portion of the study, whereas treated horses averaged <0.5%. One treated horse (S) accounted for all consumption; he consumed 15% of his bites as locoweed in a grazing bout on d 2 of the field study. Thereafter, he was dosed a second time with lithium chloride and ate no locoweed in the subsequent 5 d. Three of six horses required two pairings of lithium chloride with fresh locoweed to condition a complete aversion. The results of this study indicate that horses can be averted from locoweed using lithium chloride as an aversive agent, and this may provide a management tool to reduce the risk of intoxication for horses grazing locoweed-infested rangeland.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5682  
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Author Pfister, J.A.; Stegelmeier, B.L.; Cheney, C.D.; Gardner, D.R. url  openurl
  Title Effect of previous locoweed (Astragalus and Oxytropis species) intoxication on conditioned taste aversions in horses and sheep Type Journal Article
  Year 2007 Publication Journal of Animal Science Abbreviated Journal (down) J. Anim. Sci.  
  Volume 85 Issue 7 Pages 1836-1841  
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  Abstract Locoweed species (Astragalus and Oxytropis spp.) are a serious toxic plant problem for grazing livestock. Horses and sheep have been conditioned to avoid eating locoweed using the aversive agent LiCl. The objective of this study was to determine if previous locoweed intoxication affects food aversion learning in horses and sheep. Horses and sheep were divided into 3 treatment groups: control (not fed locoweed and not averted to a novel feed); locoweed-novel feed averted (fed locoweed and averted to a novel feed); and averted (not fed locoweed and averted to a novel feed). Animals in the locoweed-novel feed averted groups were fed locoweed during 2 periods of 21 and 14 d, respectively, with each feeding period followed by a 14-d recovery period. Animals were averted to a novel test feed at the end of the first locoweed-feeding period, and periodically evaluated for the strength and persistence of the aversion. During the first recovery period, locoweed-novel feed averted horses ate less (9.5% of amount offered) of the test feed than did control horses (99.8%) and did not generally differ from averted horses (0%). During recovery period 2, locoweed-novel feed averted horses (4.3%) differed (P = 0.001) in consumption (% of offered) of the test feed from controls (100%) and the averted group (0%). Locoweed-novel feed averted sheep differed (P = 0.001) from controls (14.4 vs. 99.5%, respectively, during recovery period 1), whereas locoweed-novel feed averted sheep did not differ (P > 0.50) from averted sheep (0.6%). During the second recovery period, control sheep (100%) differed (P < 0.05) from averted (0%) and locoweed-novel feed averted (12.2%) groups. Two intoxicated sheep (locoweed-novel feed averted) partially extinguished the aversion during the first recovery period, but an additional dose of LiCl restored the aversion. Two of 3 intoxicated horses had strong aversions that persisted without extinction; 1 horse in the locoweed-novel feed averted group had a weaker aversion. These findings suggest that horses and sheep previously intoxicated by locoweeds can form strong and persistent aversions to a novel feed, but in some animals, those aversions may not be as strong as in animals that were never intoxicated.  
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  Notes 10.2527/jas.2007-0046 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5683  
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Author Kristjansson, T.; Bjornsdottir, S.; Sigurdsson, A.; Andersson, L.S.; Lindgren, G.; Helyar, S.J.; Klonowski, A.M.; Arnason, T. url  doi
openurl 
  Title The effect of the ‘Gait keeper’ mutation in the DMRT3 gene on gaiting ability in Icelandic horses Type Journal Article
  Year 2014 Publication Journal of Animal Breeding and Genetics Abbreviated Journal (down) J. Anim. Breed. Genet.  
  Volume Issue Pages n/a-n/a  
  Keywords Gaiting ability; genotype effect; genotype probability  
  Abstract A nonsense mutation in DMRT3 (‘Gait keeper’ mutation) has a predominant effect on gaiting ability in horses, being permissive for the ability to perform lateral gaits and having a favourable effect on speed capacity in trot. The DMRT3 mutant allele (A) has been found in high frequency in gaited breeds and breeds bred for harness racing, while other horse breeds were homozygous for the wild-type allele (C). The aim of this study was to evaluate further the effect of the DMRT3 nonsense mutation on the gait quality and speed capacity in the multigaited Icelandic horse and demonstrate how the frequencies of the A- and C- alleles have changed in the Icelandic horse population in recent decades. It was confirmed that homozygosity for the DMRT3 nonsense mutation relates to the ability to pace. It further had a favourable effect on scores in breeding field tests for the lateral gait tölt, demonstrated by better beat quality, speed capacity and suppleness. Horses with the CA genotype had on the other hand significantly higher scores for walk, trot, canter and gallop, and they performed better beat and suspension in trot and gallop. These results indicate that the AA genotype reinforces the coordination of ipsilateral legs, with the subsequent negative effect on the synchronized movement of diagonal legs compared with the CA genotype. The frequency of the A-allele has increased in recent decades with a corresponding decrease in the frequency of the C-allele. The estimated frequency of the A-allele in the Icelandic horse population in 2012 was 0.94. Selective breeding for lateral gaits in the Icelandic horse population has apparently altered the frequency of DMRT3 genotypes with a predicted loss of the C-allele in relatively few years. The results have practical implications for breeding and training of Icelandic horses and other gaited horse breeds.  
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  ISSN 1439-0388 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5831  
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