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Luescher, U. A. (1993). More on self-mutilative behavior in horses. J Am Vet Med Assoc, 203(9), 1252–1253.
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Houpt, K. A., & Feldman, J. (1993). Animal behavior case of the month. Aggression toward a neonatal foal by its dam. J Am Vet Med Assoc, 203(9), 1279–1280.
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McDonnell, S. M. (1993). More on self-mutilative behavior in horses. J Am Vet Med Assoc, 202(10), 1545–1546.
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Tomasello M, Savage-Rumbaugh S, & Kruger AC. (1993). Imitative learning of actions on objects by children, chimpanzees, and enculturated chimpanzees. Child Dev., 64, 1688.
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Clayton, H. M. (1993). Development of conditioning programs for dressage horses based on time-motion analysis of competitions. J Appl Physiol, 74(5), 2325–2329.
Abstract: The time-motion characteristics of Canadian basic- and medium-level dressage competitions are described, and the results are applied in formulating sport-specific conditioning programs. One competition was analyzed at the six levels from basic 1 to medium 3. Each test was divided into a series of sequences based on the type and speed of activity. The durations of the sequences were measured from videotapes. The basic-level tests had fewer sequences, and they were shorter in distance and duration than the medium tests (P < 0.10), but the average speed did not differ between the two levels. It is recommended that horses competing at the basic levels be conditioned using 5-min exercise periods, with short (10-s) bursts of lengthened trot and canter included at basic 2 and above. In preparation for medium-level competitions, the duration of the work periods increases to 7 min, 10- to 12-s bursts of medium or extended trot and canter are included, and transitions are performed frequently to simulate the energy expenditure in overcoming inertia.
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