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Author Walter, G.; Reisner, A. url  openurl
  Title Student opinion formation on animal agriculture issues Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 72 Issue 6 Pages 1654-1658  
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  Call Number (up) Equine Behaviour @ team @ Serial 2935  
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Author Gonyou, H.W. url  openurl
  Title Why the study of animal behavior is associated with the animal welfare issue Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 72 Issue 8 Pages 2171-2177  
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  Call Number (up) Equine Behaviour @ team @ Serial 2931  
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Author Heyes CM openurl 
  Title Reflections on self-recognition in primates Type Journal Article
  Year 1994 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 47 Issue Pages 909  
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  Call Number (up) Equine Behaviour @ team @ Serial 3005  
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Author Sugiyama Y openurl 
  Title Tool use by wild chimpanzees Type Journal Article
  Year 1994 Publication Nature Abbreviated Journal Nature  
  Volume 376 Issue Pages 327  
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  Call Number (up) Equine Behaviour @ team @ Serial 3041  
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Author Premack D; Premack AJ openurl 
  Title Levels of causal understanding in chimpanzees and children Type Journal Article
  Year 1994 Publication Cognition Abbreviated Journal  
  Volume 50 Issue Pages 347  
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  Call Number (up) Equine Behaviour @ team @ Serial 3072  
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Author Sappington, B.F.; Goldman, L. url  openurl
  Title Discrimination learning and concept formation in the Arabian horse Type Journal Article
  Year 1994 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 72 Issue 12 Pages 3080-3087  
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  Abstract 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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  Call Number (up) Equine Behaviour @ team @ Serial 3569  
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Author Marinier, S.L.; Alexander, A.J. url  openurl
  Title The use of a maze in testing learning and memory in horses Type Journal Article
  Year 1994 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 39 Issue 2 Pages 177-182  
  Keywords Horses; Learning; Memory; Maze; Exercise  
  Abstract Two mazes were used to test the learning ability and memory of horses, and changes in these abilities. Testing was done on four occasions. On Occasion 1, the horses were run through Maze A until they had reached the criterion of three consecutive correct runs. A week later (Occasion 2), they were retested in Maze A to the same criterion as a measure of memory. On Occasion 3,2 months later, the horses were run through Mazes A and B until they reached the criterion. Occasion 4 took place 1 week later when they were run through Mazes A and B. An estimation of changes in ability to learn came from a comparison of results from Occasions 1 and 3. Similarly, changes in ability to remember came from a comparison of results from Occasions 2 and 4. Nine horses with a variable amount of riding training were the subjects. All horses were able to learn the maze, but the ability varied among horses. There was no obvious correlation between quality of handling of the horses and learning ability. Once the horses had learned the maze, they remembered it perfectly on subsequent occasions. There were changes in the memory and learning ability of the horses, but no clear explanation for this could be found.  
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  Call Number (up) Equine Behaviour @ team @ Serial 3573  
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Author Mal, M. E.; McCall, C. A.; Cummins, K. A.; Newland, M. C. url  doi
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  Title Influence of preweaning handling methods on post-weaning learning ability and manageability of foals. Type Journal Article
  Year 1994 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 40 Issue 3-4 Pages 187-195  
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  Abstract Twenty-three foals were used to determine if different amounts of handling between birth and weaning affected their later learning ability and manageability. Foals were assigned to one of three treatments: non-handled (NH) foals were not handled except for necessary maintenance procedures; intermediately handled (IH) foals were handled daily in two 10-min sessions for 7 days after birth and then not handled except for necessary maintenance procedures; extensively handled (EH) foals were handled daily for 7 days as were IH foals and then handled for 10 min once weekly until weaning. Foals were weaned at 120 +/- 10 days of age. On days 1, 3, and 15 after weaning, foals were subjected to a one-trial learning test. The learning test consisted of placing the foal in a familiar pen with an 1.5 X .6-m apparatus containing 40 15 X 15-cm compartments. Number of visits to the apparatus and compartment visited were recorded for 5 min. A small amount of concentrate feed then was placed in a target compartment, and visits were recorded for an additional 5 min. On day 16 after weaning, foals were subjected to a manageability test in which flight distance from an unfamiliar handler and reaction to a novel stimulus were recorded. Split-plot analysis of variance revealed no treatment differences in performance on the learning test (P > .05). Foal performance on the test was greater on day 15 than on day 1 or day 3 (P < .01). Analysis of variance indicated handling treatment had no effect (P > .05) on foal performance during the manageability test. Results indicate that this preweaning handling regimen has no effect on foal learning ability or manageability as measured by these procedures.  
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  Call Number (up) Equine Behaviour @ team @ Serial 3674  
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Author Andrews, F.M.; Ralston, S.L.; Sommardahl, C.S.; Maykuth, P.L.; Green, E.M.; White, S.L.; Williamson, L.H.; Holmes, C.A.; Geiser, D.R. openurl 
  Title Weight, water, and cation losses in horses competing in a three-day event Type Journal Article
  Year 1994 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume 205 Issue 5 Pages 721-724  
  Keywords Animals; Body Water/*metabolism; Body Weight/*physiology; Exertion/*physiology; Female; Horses/blood/*metabolism; Male; Physical Conditioning, Animal/physiology; Physical Endurance/physiology; Potassium/*blood; Sodium/*blood  
  Abstract Body weight of 48 horses competing in a 3-day event was measured the day before the event (baseline), following the dressage phase of the event (day 1), after the endurance phases of the event (day 2), and 18 to 24 hours after the endurance phases (day 3). Plasma sodium and potassium concentrations were measured the evening before, immediately after, and 10 minutes after the endurance phases. Total body water, water loss, and net exchangeable cation loss were then calculated. Body weight and total body water were significantly decreased, compared with baseline values, at all times during the event, and significant water loss was detected. The largest changes were recorded after the endurance phases of the event. Water deficits were still detected 18 to 24 hours after the endurance phases of the event. Mean plasma sodium concentration was significantly increased immediately after the endurance phases of the event, compared with concentration measured the evening before, and remained increased after the 10-minute recovery period, presumably because of dehydration. Mean plasma potassium concentration was significantly increased immediately after the endurance phases of the event, compared with concentration measured the evening before, but was not increased after the 10-minute recovery period.  
  Address Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901-1071  
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  ISSN 0003-1488 ISBN Medium  
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  Notes PMID:7989242 Approved no  
  Call Number (up) Equine Behaviour @ team @ Serial 3745  
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Author Clayton, H.M. openurl 
  Title Comparison of the stride kinematics of the collected, working, medium and extended trot in horses Type Journal Article
  Year 1994 Publication Equine Veterinary Journal Abbreviated Journal Equine Vet J  
  Volume 26 Issue 3 Pages 230-234  
  Keywords Analysis of Variance; Animals; Biomechanics; Female; Forelimb/anatomy & histology/physiology; Gait/*physiology; Hindlimb/anatomy & histology/physiology; Horses/anatomy & histology/*physiology; Locomotion/physiology; Male; Motion Pictures  
  Abstract Highly-trained dressage horses were studied to test the hypothesis that stride length is altered independently of stride duration in the transitions between the collected, working, medium and extended trot. Six well-trained dressage horses were filmed at a frame rate of 150 frames/s performing the collected, working, medium and extended trots in a sand arena. Temporal, linear and angular data were extracted from the films, with 4 strides being analysed for each horse and gait type. There were no significant asymmetries between the left and rights limbs or diagonals when data from the whole group were pooled, but 3 horses showed asymmetries in one or more variables (P < 0.01). Analysis of variance and post-hoc tests indicated that the speed increased significantly (P < 0.01) from the collected (3.20 m/s) to the working (3.61 m/s) to the medium (4.47 m/s) to the extended (4.93 m/s) trot. The increases in speed were associated with a significant increase in stride length from 250 cm in the collected trot, to 273 cm in the working trot, 326 cm in the medium trot and 355 cm in the extended trot (P < 0.01). The lengthening of the stride was a result of increases between each gait type in the over-reach distance, whereas the diagonal distance was significantly longer in the extended than the collected trot only (P < 0.01). The stride duration tended to decrease as speed increased, and the difference became significant between the collected and extended trots (P < 0.01).  
  Address Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada  
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  ISSN 0425-1644 ISBN Medium  
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  Notes PMID:8542844 Approved no  
  Call Number (up) Equine Behaviour @ team @ Serial 3746  
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