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Nagy, K.; Bodó, G.; Bárdos, G.; Bánszky, N.; Kabai, P. |
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Title  |
Differences in temperament traits between crib-biting and control horses |
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Journal Article |
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Year |
2010 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
122 |
Issue |
1 |
Pages |
41-47 |
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Crib-biting; Stereotypic behaviour; Equine temperament; Trainability; Coping strategies |
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Recent studies have suggested that crib-biting in horses is associated with diminished capacity of learning or coping with stress. Such findings raise the question whether trainability, which is fundamentally important in practice, could also be affected by stereotypic behaviour. Trainability of a horse is difficult to assess in simple tests, however, it is reliably estimated by experienced riders. To assess trainability and other characteristics related to that, a questionnaire survey was conducted with the owners of 50 crib-biting and 50 control horses. Where possible, control horses were selected from the same establishment as crib-biters. Groups did not differ significantly regarding age, breed, gender, training level or usage. Principal component analysis revealed three main factors which can be labelled as [`]Anxiety', [`]Affability' and [`]Trainability'. The [`]Anxiety' factor consisted of the items [`]Nervousness', [`]Excitability', [`]Panic', [`]Inconsistent emotionality', [`]Vigilance', [`]Skittishness', and [`]Timidity'. [`]Affability' consisted of [`]Friendliness toward people', [`]Cooperation', [`]Docility' and [`]Friendliness toward horses'. [`]Trainability' involved [`]Concentration', [`]Trainability', [`]Memory', and [`]Perseverance'. Temperament traits were not affected by age, gender, breed or training level, but the usage of the horse and the presence of crib-biting behaviour had significant effects. Competition horses had lower level of [`]Anxiety' (p = 0.032) and higher level of [`]Trainability' (p = 0.068) than leisure horses. Crib-biting horses had significantly lower level of [`]Anxiety' than control horses (p < 0.001), while [`]Trainability' and [`]Affability' did not differ between groups (p = 0.823 and p = 0.543, respectively). Competition horses are more often exposed to novel environment and to frightening stimuli (e.g. colourful obstacles) than leisure horses and therefore might have also become more habituated to these types of stimuli. Coping with novel situation may be enhanced by defusing nervous behaviour by the more experienced riders of competition. Previous studies indicated crib-biting horses to be less reactive when challenged as compared to control horses. We suggest that the virtual calmness and lower nervousness of the crib-biting horses might be due to the passive coping style of these animals. [`]Affability' of horses might be more related to housing and management conditions than to crib-biting. Contrary to expectations, scores on [`]Trainability' had not coincided with the impaired learning of crib-biting horses reported in laboratory tests. However, previous behavioural tests on equine learning rarely had a direct relevance to the training abilities of the horses. Our results do not support crib-biting stereotypy to affect performance in training, which is a complex learning process involving cooperation and docility in the social environment. |
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Equine Behaviour @ team @ |
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5078 |
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Novotný, F.; Noskovič ová, J.; Valocký, I; Pošivák, J.; Boldižár, M.; Hura, V. Baranovič , M. Bílek, M. |
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Differences of biochemical and haematological indices in the aging process in cold-blooded horses Norik Muráň type |
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Conference Article |
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2012 |
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Proceedings of the 2. International Equine Science Meeting |
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Proc. 2. Int. Equine. Sci. Mtg |
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in press |
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The aim of was to compare of biochemical and haematological parameters in the aging process in a cold-blooded mares breed Norik Muráň type. 27 of breeding mares Norik Muráň type without pathological symptoms in horse breeding farm in Dobšiná (Slovakia) were used in this study. Mares were divided by age into four groups: A (n = 7, 5-8 years), B (n = 6, 9-15), C (n = 7, 16-20) and D (n = 7, 21-23). Blood samples were collected from v. jugularis externa by needles (Vacutainer ® Precision Glide ™, BD Diagnostics, USA) in serum tubes (Serum-SST TM II Advance, BD Diagnostics, USA) in the morning hours, kept at 8 to 10 °C and analyzed as soon as possible. Biochemical parameters of blood serum like aspartate aminotransferase (AST), alkaline phosphatase (ALP), creatinine (CREA), urea (Urea), albumin (ALB) and glucose (Glu) were analyzed using biochemical analyzer Cobas c 111 (Roche, Switzerland). Reference values were determined by Laboratory of Clinical Biochemistry and Haematology (UVMF, Košice). Were used a same nutrition for all mares. The results were statistically processed using Student\'s t-test. The concentrations of AST decreased in mares with aging (A=5.69 ± 1.13 μkat/l; B=5.36 ± 0.9 μkat/l; C=5.13 ± 1.1 μkat/l), but in the oldest mares (D=5.88 ± 1.37 μkat/l). were higher than the youngest age group A. Were found no significant differences between groups (P> 0,05). The concentrations of ALP increased with age (A=2.47 ± 0.3 μkat/l; C=2.66 ± 0.43 μkat/l; D=2.77 ± 1.17 μkat/l), but in the middle age mares were found (B= 2;44 ± 0.46 μkat/l) (P> 0,05). Crea concentrations had a decreasing trend (A=139.1 ± 37.49 μmol/l; B=118.45 ± 23.18 μmol/l; C=119.31 ± 19.85 μmol/l; D=111.59 ± 21.08 μmol/l) (P> 0,05). Urea increased with age (A=7.88 ± 2.04 mmol/l, B= 7.97 ± 0.8 mmol/l, D= 8.29 ± 1.23 mmol/l) except C (7.76 ± 0.85 mmol/l) (P> 0,05). ALB decreased with age (A=31.34 ± 3.24 g/l; B=30.03 ± 2.41 g/l; C=30±2.77 g/l; D=29.67± 2.85 g/l) (P> 0,05). Also glucose concentrations were lower in older mares (A=4.51 ± 0.99 mmol/l; B=4.69 ± 1.05 mmol/l; C= 4.69 ± 1.05 mmol/l; D =4.03 ± 0.64 mmol/l) (P> 0,05). Significantly differences were found in leukocytes between group A =2,76±1,82 g/l versus groups B=6,74±0,56 g/l, C =6,46±1,14 g/l and D =6,13±1,61 g/l (P<0.05), also in neutrophiles between A=2,06±1,26 109/l versus B= 3,47±1,17 109/l, C =3,12±0,9 109/l and D =2,88±0,71 109/l (P<0.05). Were found significantly differences in eosinophiles between group A =0,06±0,09 109/l versus groups B=0,21±0,17 109/l, C=0,19±0,1 109/l and D=0,12±0,11 109/l (P<0.05), also in lymphocytes between A=4,59±1,59109/l versus B =2,95±1,04109/l, C=2,99±1,14109/l and D=2,65±1,87109/l (P<0.05). This research evaluated selected biochemical and haematological parameters of breed mares Norik Muráň type of different ages. We found that age affects these indices in mares Norik Muráň type. Data from this study may enhance our understanding of the biochemical parameters in this species, allowing a veterinarian to fix the interpretation of laboratory data and give these animals the appropriate care. This study was supported by grant from the Ministry of Education VEGA 1/0498/12 of the Slovak Republic. |
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Novotný, F. |
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Xenophon Publishing |
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Wald |
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Krueger, K. |
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978-3-9808134-26 |
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Equine Behaviour @ team @ |
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5514 |
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Stachurska, A.; Pieta, M.; Ussing, A.P.; Kapron, A.; Kwiecinska, N. |
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Title |
Difficulty of cross-country obstacles for horses competing in Three Day Events |
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Journal Article |
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2010 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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123 |
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3-4 |
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101-107 |
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Cross-country; Obstacles; Eventing horse; Behaviour |
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The objective of the study was to determine which cross-country obstacles are more difficult for eventing horses. Jumping scores were considered in terms of the horse's reaction to novelty and to the fearfulness of novel objects which are the fences situated in novel terrain. The data concerned 11 classes of One to Four Star level (stars showing the difficulty of the class) held at the Olympic Games and three international Three Day Events. A total of 400 entries, in which 259 horses jumped 372 obstacles were considered. Scores of 11,341 jumps at particular fences were categorized either as faulty jumps or non-faulty jumps. Factors describing the fences versus the jumping scores were studied with least square analysis of variance, with respect to the interaction between the star level and the fence traits. The overall frequency of faults at the cross-country amounted to 4.33 ± 0.57%. Among the effects analyzed, the difficulty of cross-country fences for the horses depends upon whether an obstacle is single or is an element of a combination, whether it is straight or requiring an effort in both height and spread, is broad or narrow, has a solid top or a brush, has an alternative or not and whether it is a water crossing or not. At One Star level, the less experienced horses react differently to certain fence traits compared to horses participating in Three or Four Star levels. It is concluded that the equine visionary system, being less developed towards identification of stationary objects than the human visionary system may be a key towards explaining the horse's behaviour while jumping the obstacle. The height-spread obstacles, those of the narrow front, with the brush and with the alternative seem to involve more faults because of the equine low-acuity vision. The same reason may justify the similar frequency of faults at the single obstacles and the first elements in combinations. Accurate methods of measuring equine vision would complement behavioural tests and should both be introduced into the selection of eventing horses. |
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0168-1591 |
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Equine Behaviour @ team @ |
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5076 |
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McGrogan, C.; Hutchison, M.D.; King, J.E. |
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Dimensions of horse personality based on owner and trainer supplied personality traits |
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Journal Article |
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2008 |
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Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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113 |
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1 |
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206-214 |
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Horse; Personality; Domestication; Five-factor model |
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Ratings on 36 personality descriptive adjectives were made on 100 companion horses by owners, trainers, and stable managers. The descriptors had been previously provided by a subset of 30 raters based on their own experience with horses. Principal components analysis revealed three statistically significant factors accounting for 59% of the variance. The first was a large, complex factor resembling the human Agreeableness factor. This factor contained four clusters of items reflecting obedience, kindness, sociality, and non-aggressiveness. The second factor resembled human Extraversion, although it also contained items reflecting intellect and curiosity. The third factor reflected Neuroticism or Emotionality. Factors similar to Agreeableness, Extraversion, and Emotionality are frequently observed in other taxa. The diverse composition of the Agreeableness factor indicating covariation among obedience, kindness, sociality, and non-aggressiveness may be a result of the intense artificial selection for all four components during the 6000 years of horse domestication. |
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Admin @ knut @ |
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4337 |
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Ballew, R.M.; Sabelko, J.; Gruebele, M. |
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Direct observation of fast protein folding: the initial collapse of apomyoglobin |
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Journal Article |
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1996 |
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Proceedings of the National Academy of Sciences of the United States of America |
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Proc. Natl. Acad. Sci. U.S.A. |
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93 |
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12 |
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5759-5764 |
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Animals; Apoproteins/*chemistry; Circular Dichroism; Horses; Kinetics; Muscle, Skeletal/chemistry; Myoglobin/*chemistry; *Protein Folding; Spectrometry, Fluorescence; Spectrophotometry, Infrared; Temperature |
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The rapid refolding dynamics of apomyoglobin are followed by a new temperature-jump fluorescence technique on a 15-ns to 0.5-ms time scale in vitro. The apparatus measures the protein-folding history in a single sweep in standard aqueous buffers. The earliest steps during folding to a compact state are observed and are complete in under 20 micros. Experiments on mutants and consideration of steady-state CD and fluorescence spectra indicate that the observed microsecond phase monitors assembly of an A x (H x G) helix subunit. Measurements at different viscosities indicate diffusive behavior even at low viscosities, in agreement with motions of a solvent-exposed protein during the initial collapse. |
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School of Chemical Sciences and Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, 61801, USA |
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0027-8424 |
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PMID:8650166 |
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Equine Behaviour @ team @ |
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3798 |
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Zhou, W.-X.; Sornette, D.; Hill, R.A.; Dunbar, R.I.M. |
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Discrete hierarchical organization of social group sizes |
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2005 |
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Proceedings. Biological sciences / The Royal Society |
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Proc Biol Sci |
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272 |
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1561 |
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439-444 |
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Anthropology, Cultural; *Group Structure; Humans; *Models, Biological; *Social Behavior; *Social Environment |
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The 'social brain hypothesis' for the evolution of large brains in primates has led to evidence for the coevolution of neocortical size and social group sizes, suggesting that there is a cognitive constraint on group size that depends, in some way, on the volume of neural material available for processing and synthesizing information on social relationships. More recently, work on both human and non-human primates has suggested that social groups are often hierarchically structured. We combine data on human grouping patterns in a comprehensive and systematic study. Using fractal analysis, we identify, with high statistical confidence, a discrete hierarchy of group sizes with a preferred scaling ratio close to three: rather than a single or a continuous spectrum of group sizes, humans spontaneously form groups of preferred sizes organized in a geometrical series approximating 3-5, 9-15, 30-45, etc. Such discrete scale invariance could be related to that identified in signatures of herding behaviour in financial markets and might reflect a hierarchical processing of social nearness by human brains. |
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State Key Laboratory of Chemical Reaction Engineering, East China University of Science and Technology, Shanghai 200237, China |
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0962-8452 |
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PMID:15734699 |
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refbase @ user @ |
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549 |
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Hothersall, B.; Harris, P.; Sörtoft, L.; Nicol, C.J. |
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Discrimination between conspecific odour samples in the horse (Equus caballus) |
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Journal Article |
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2010 |
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Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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126 |
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1-2 |
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37-44 |
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Horse; Olfaction; Social discrimination; Urine; Faeces |
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Behavioural observations suggest that smell is important in social discriminations between horses but balanced studies of this capacity are lacking. We used a habituation-discrimination procedure to investigate the ability of horses to distinguish between pairs of odour samples from different individuals. In Study 1, separate tests were conducted for urine, faeces or fleece fabric previously rubbed on the coat (to pick up body odour samples (BOS)) and donor pairs differed in sex, and age. 10 pregnant mares each underwent three tests, one per sample type. A test consisted of three successive 2-min presentations of a sample from Individual A with a simultaneous presentation of a sample from Individual B during the final presentation. Doubly repeated measures ANOVA indicated a main effect of sample type on investigative response (df = 2, f = 7.98, P = 0.004): durations were longer for BOS than for urine or faeces but habituation across trials was most consistent for urine. In the final presentation, mares demonstrated discrimination by investigating the novel urine sample (B) more than the repeated sample (novel: median 8.0 s, IQR = 10; repeated: median 2.5 s, IQR = 6; z = -2.558, P = 0.008). In Study 2, urine samples from castrated male donors were used and neither mares nor their 4-month-old foals discriminated between samples from different individuals in the final presentation. The findings suggest that urine odour may contain some information that horses can use to discriminate between conspecifics. This may be limited to the level of broad categories such as sex or reproductive status; further investigation is needed to reveal what functional information can be transmitted and what compounds are involved. |
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Equine Behaviour @ team @ |
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5134 |
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Sappington, B.F.; Goldman, L. |
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Discrimination learning and concept formation in the Arabian horse |
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1994 |
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Journal of Animal Science |
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J. Anim Sci. |
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72 |
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12 |
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3080-3087 |
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Discrimination learning and concept formation abilities were investigated in four mature Arabian horses. A series of two-choice discrimination problems were presented on stimulus panels that could open to allow access to food bowls. Selection of the correct stimulus resulted in food reinforcement, and an incorrect choice was not rewarded. The positions of the correct and incorrect stimuli were varied randomly during each test session, and the criterion for learning each problem was 85% correct for two consecutive sessions of 30 or 40 trials. Testing progressed through six discrimination problems. The first four were simple pattern discriminations, but the last two incorporated several different triangles as correct stimuli and thus involved the concept of triangularity. Two of the subjects successfully completed only simple pattern discriminations, one showed evidence of learning in the first concept problem, and one completed all six tests, including the two concept formation problems. The results demonstrate complex pattern discrimination ability in horses, and suggest that they may also have the ability to form and use concepts in problem solving. |
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Equine Behaviour @ team @ |
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3569 |
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Hanggi, E.B. |
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Discrimination learning based on relative size concepts in horses (Equus caballus) |
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Journal Article |
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2003 |
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Applied Animal Behaviour Science |
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Appl. Anim. Behav. Sci. |
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83 |
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3 |
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201-213 |
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Horse; Concept; Size transposition; Generalization; Learning; Training |
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This study explored whether or not horses (Equus caballus) could respond to stimuli using a concept based on relative size. In Experiment 1, after learning to respond to the larger of the two stimuli for six sets of two-dimensional (2D) training exemplars, one horse was tested for size transposition that used novel larger and smaller stimuli as well as three-dimensional (3D) objects (5 two-dimensional sets and 5 three-dimensional sets with large, medium, small, and tiny sizes). The horse correctly chose (significantly above chance) the larger of two stimuli regardless of novelty or dimension or combination. In Experiment 2, two additional horses were tested using a subset of the stimuli from Experiment 1. One horse was required to select the larger stimulus--as in Experiment 1--and the other the smaller stimulus. After learning the task, both horses responded correctly to new stimuli and showed size transposition. These results suggest that at least some horses are capable of solving problems based on relative size concepts. Moreover, they are able to generalize across situations that vary from flat, black shapes to objects of different materials and colors including balls, flower pots, and PVC connectors. These findings support earlier research that showed that horses could categorize certain stimuli, and provide new evidence that they are capable of using some form of concept for problem solving. Understanding that horses have more advanced learning abilities than was previously believed should help improve training methods and management. |
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refbase @ user @ |
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398 |
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Mader, D.R.; Price, E.O. |
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Title |
Discrimination learning in horses: effects of breed, age and social dominance |
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Journal Article |
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Year |
1980 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
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Volume |
50 |
Issue |
5 |
Pages |
962-965 |
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Keywords |
Aging; Animals; *Discrimination Learning; Female; Horses/*physiology; *Social Dominance |
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Abstract |
The discrimination learning ability of Quarter Horses and Thoroughbreds was compared by means of visual cues in a three-choice test with food as a reward. Quarter Horses learned significantly faster than Thoroughbreds, and learning progressed more rapidly for both breeds in a second discrimination task. Significant negative correlations were observed between age and rate of learning. Quarter Horses tended to be less reactive than Thoroughbreds, but individual emotional reactivity ratings and learning scores were not correlated. No correlation was found between social dominance and learning scores. Learning studies with horses may provide a better understanding of the behavioral traits that influence trainability in this species. |
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Language |
English |
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ISSN |
0021-8812 |
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Notes |
PMID:7390949 |
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no |
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Call Number |
refbase @ user @ |
Serial |
679 |
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