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Author Houpt, K.A.; Feldman, J. openurl 
  Title Animal behavior case of the month. Aggression toward a neonatal foal by its dam Type Journal Article
  Year 1993 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume (down) 203 Issue 9 Pages 1279-1280  
  Keywords Animals; Animals, Newborn; *Behavior, Animal; Female; Follow-Up Studies; Horses/*psychology; *Maternal Behavior; Rejection (Psychology); Restraint, Physical/veterinary  
  Abstract  
  Address Department of Physiology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-1488 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8253618 Approved no  
  Call Number refbase @ user @ Serial 36  
Permanent link to this record
 

 
Author Houpt, K.A.; Smith, R. openurl 
  Title Animal behavior case of the month Type Journal Article
  Year 1993 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume (down) 203 Issue 3 Pages 377-378  
  Keywords Aggression; Animals; Animals, Zoo/*psychology; *Behavior, Animal; *Feeding Behavior; Female; Horses/*psychology; *Weaning  
  Abstract  
  Address Department of Physiology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853-6401  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-1488 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8226214 Approved no  
  Call Number refbase @ user @ Serial 37  
Permanent link to this record
 

 
Author Luescher, U.A. openurl 
  Title More on self-mutilative behavior in horses Type Journal Article
  Year 1993 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume (down) 203 Issue 9 Pages 1252-1253  
  Keywords Animals; Female; Horses/*psychology; Male; *Self Mutilation  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-1488 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8253611 Approved no  
  Call Number refbase @ user @ Serial 1942  
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Author McDonnell, S.M. openurl 
  Title More on self-mutilative behavior in horses Type Journal Article
  Year 1993 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume (down) 202 Issue 10 Pages 1545-1546  
  Keywords Animals; Female; Horses/*injuries/psychology; Male; *Self Mutilation  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-1488 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8514553 Approved no  
  Call Number refbase @ user @ Serial 1943  
Permanent link to this record
 

 
Author McClure, S.R.; Chaffin, M.K. openurl 
  Title Self-mutilative behavior in horses Type Journal Article
  Year 1993 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume (down) 202 Issue 2 Pages 179-180  
  Keywords Animals; *Behavior, Animal; *Horse Diseases; Horses; Male; *Self Mutilation  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-1488 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8428817 Approved no  
  Call Number refbase @ user @ Serial 1944  
Permanent link to this record
 

 
Author Ratzlaff, M.H.; Wilson, P.D.; Hyde, M.L.; Balch, O.K.; Grant, B.D. openurl 
  Title Relationship between locomotor forces, hoof position and joint motion during the support phase of the stride of galloping horses Type Journal Article
  Year 1993 Publication Acta Anatomica Abbreviated Journal Acta Anat (Basel)  
  Volume (down) 146 Issue 2-3 Pages 200-204  
  Keywords Animals; Equipment Design; Hoof and Claw/*physiology; Horses/*physiology; Joints/*physiology; *Locomotion; Motor Activity/*physiology; Physiology/instrumentation; *Posture; Shoes; Transducers  
  Abstract Three methods were used simultaneously to determine the relationships between the vertical forces exerted on the hooves and the positions of the limbs and hooves at the times of peak vertical forces from 2 horses galloping on a track straightaway. Vertical forces were recorded from an instrumented shoe, fetlock joint motion was measured with an electrogoniometer and the angles of the carpus, fetlock and hoof were determined from slow-motion films. At hoof contact, the mean angles of the carpus and fetlock were 181-182 degrees and 199-206 degrees, respectively. Peak vertical forces on the heel occurred at or near maximum extension of the carpal and fetlock joints. Peak forces on the toe occurred during flexion of the fetlock joint and at mean hoof angles of 28-31 degrees from the horizontal. The mean angles of the hoof from the horizontal at the time of heel contact were 6-7 degrees. Hoof lift occurred at mean carpal angles of 173-174 degrees and mean fetlock angles of 199-200 degrees.  
  Address Department of Veterinary and Comparative Anatomy, Pharmacology and Physiology, College of Veterinary Medicine, Washington State University, Pullman 99164-6520  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0001-5180 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8470468 Approved no  
  Call Number refbase @ user @ Serial 1945  
Permanent link to this record
 

 
Author Colahan, P.; Lindsey, E.; Nunier, C. openurl 
  Title Determination of the center of pressure of the hoofs of the forelimbs of horses standing on a flat level surface Type Journal Article
  Year 1993 Publication Acta Anatomica Abbreviated Journal Acta Anat (Basel)  
  Volume (down) 146 Issue 2-3 Pages 175-178  
  Keywords Animals; Forelimb/*physiology; Hoof and Claw/*physiology; Horses/*physiology; *Posture; Pressure  
  Abstract The pressure exerted on a flat level surface by recently trimmed, unshod hoofs of the front limbs of 23 sound, adult horses was measured using pressure-sensitive film and a specially built cassette. The horses were tranquilized and stood with one foot on the 2.9-cm-thick cassette and the other on a block of equal height. The hoofs were observed for motion during the measurement, and the developed film was examined for improper alignment of the film or slipping of the hoof. The center of pressure was located using the method of weighted proportions of Barrey. This static measurement system with a long measurement time and the number of measurements reduced the influence of variables inherent in the horses' behavior and the measuring system. The calculated point was recorded as falling medial to, lateral to or on a line bisecting the central sulcus of the frog. In the dorsal to palmar orientation the point was classified with reference to a line drawn halfway between the most dorsal and the most palmar mark on the film. Forty-six percent of the calculated centers of pressure were located in the medial heel area. Binomial analysis for large samples indicates that this was a significant variation from a random distribution. Seventy-six percent of the centers were located in or on the borders of the medial heel.  
  Address College of Veterinary Medicine, University of Florida, Gainesville 32608-0136  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0001-5180 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8470462 Approved no  
  Call Number refbase @ user @ Serial 1946  
Permanent link to this record
 

 
Author Clayton, H.M. openurl 
  Title The extended canter: a comparison of some kinematic variables in horses trained for dressage and for racing Type Journal Article
  Year 1993 Publication Acta Anatomica Abbreviated Journal Acta Anat (Basel)  
  Volume (down) 146 Issue 2-3 Pages 183-187  
  Keywords Animal Husbandry; Animals; *Gait; Horses/*physiology; *Physical Conditioning, Animal; *Sports  
  Abstract This study was designed to test the hypothesis that there is no significant difference in selected temporal and linear stride variables of the extended canter in horses bred and trained for dressage or racing. Nine advanced-level dressage horses and 7 Thoroughbred racehorses were filmed at a frame rate of 200 Hz at an extended canter on a sand track. Two strides were recorded per trial, and each horse performed 6 or 7 trials. Temporal and linear data were determined from the films, and descriptive statistics (mean, SD) were calculated. Strides were selected for analysis on the basis of having a velocity in the range of 6.0-7.0 m/s, and multivariate analysis of variance was used to detect significant differences in the stride kinematics of horses trained for the two sports (p < or = 0.01). The average velocity of the dressage horses was 6.37 m/s, compared with 6.40 m/s for the racehorses. There were no significant differences between the two groups in velocity, stride duration, stride length or the distances between limb placements. The stance durations of all four limbs and the overlaps between them were longer, whereas the duration of the suspension phase was shorter in the dressage horses than in the racehorses (p < or = 0.01). The time between impacts of the diagonal limb pair was close to zero in both groups, with individual horses showing some variability in the order of placement of the diagonal limb pair. However, the sequence of footfalls was not significantly different between the two groups (p < or = 0.01).  
  Address Department of Veterinary Anatomy, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0001-5180 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8470464 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3751  
Permanent link to this record
 

 
Author Argue, C.K.; Clayton, H.M. openurl 
  Title A preliminary study of transitions between the walk and trot in dressage horses Type Journal Article
  Year 1993 Publication Acta Anatomica Abbreviated Journal Acta Anat (Basel)  
  Volume (down) 146 Issue 2-3 Pages 179-182  
  Keywords Animals; Forelimb/physiology; Gait/*physiology; Hindlimb/physiology; Horses/*physiology; Locomotion/physiology; *Physical Conditioning, Animal  
  Abstract The object of this study was to determine the limb support sequence during the transitions from walk to trot and from trot to walk in dressage horses under saddle and to test the null hypothesis that the limb support sequence during the transitions is not related to the level of training. Sixteen dressage horses training at novice to FEI Grand Prix level were videotaped performing an average of 9 transitions each from walk to trot and from trot to walk. The 30-Hz videotapes were viewed in slow motion, and based on the limb support sequence the transitions were categorized into two types. In type 1 transitions there were no intermediate steps between the walk and trot sequences. Type 2 transitions were characterized by intermediate steps, including a single support phase. The Kendall rank-order correlation coefficient showed that a higher level of training was positively associated with an increased percentage of type 1 transitions for both walk-to-trot transitions (p < or = 0.05) and trot-to-walk transitions (p < or = 0.01). No significant preference for initiating or completing the trot on the left or right diagonal was found using the binomial test for individual horses and the Wilcoxon signed-ranks test for the group.  
  Address Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0001-5180 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8470463 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3752  
Permanent link to this record
 

 
Author Roper, K.L.; Zentall, T.R. openurl 
  Title Directed forgetting in animals Type Journal Article
  Year 1993 Publication Psychological bulletin Abbreviated Journal Psychol Bull  
  Volume (down) 113 Issue 3 Pages 513-532  
  Keywords Animals; Behavior, Animal; *Cognition; Columbidae; Conditioning (Psychology); Discrimination Learning; Female; Humans; Male; Memory Disorders/*psychology; Reinforcement (Psychology); Task Performance and Analysis  
  Abstract Directed-forgetting research with animals suggests that animals show disrupted test performance only under certain conditions. Important variables are (a) whether during training, the cue to forget (F cue) signals nonreward (i.e., that the trial is over) versus reward (i.e., that reinforcement can be obtained) and (b) given that reinforcement can be obtained on F-cue trials, whether the post-F-cue response pattern is compatible with the baseline memory task. It is proposed that some findings of directed forgetting can be attributed to trained response biases, whereas others may be attributable perhaps to frustration-produced interference. It is suggested that directed forgetting in animals should be studied using procedures similar to those used to study directed forgetting in humans. This can be accomplished by presenting, within a trial, both to-be-remembered and to-be-forgotten material.  
  Address Department of Psychology, University of Kentucky, Lexington 40506  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0033-2909 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8316612 Approved no  
  Call Number refbase @ user @ Serial 259  
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