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Author (up) Baer, K.L.; Potter, G.D.; Friend, T.H.; Beaver, B.V.
Title Observation effects on learning in horses Type Journal Article
Year 1983 Publication Applied Animal Ethology Abbreviated Journal Appl. Animal. Ethol.
Volume 11 Issue 2 Pages 123-129
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Abstract Sixteen horses, divided into 2 groups of 8, were used to study observational learning in horses. One group served as controls while the other group served as the treated group (observers). Observers were allowed to watch a correctly performed discrimination task for 5 days prior to testing their learning response using the same task. Discrimination testing was conducted on all horses daily for 14 days, with criterion set at 7 out of 8 responses correct with the last 5 consecutively correct. The maximum number of trials performed without reaching criterion was limited to 20 per day. Mean trials to criteria (MT) by group were: control, 11.25; observer, 10.70. Mean error (ME) scores were: control, 2.37; observer, 2.02. Average initial discrimination error scores were 11.13 for control and 10.38 for observers (P < 0.10). Asymptote was reached by Day 8 for both control and observer groups. Analysis of variance with repeated measures showed an extreme-day effect indicative of learning (P < 0.01), with non-significant differences in learning rate between experimental groups. Whether the initial ability of the horses to perform a discrimination learning task was enhanced by observation of other horses' performance of that task was not obvious from these data.
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Notes Approved no
Call Number refbase @ user @ Serial 726
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Author (up) Beaver, B.V.
Title Aggressive behavior problems Type Journal Article
Year 1986 Publication The Veterinary clinics of North America. Equine practice Abbreviated Journal Vet Clin North Am Equine Pract
Volume 2 Issue 3 Pages 635-644
Keywords Affect; Aggression/*psychology; Animals; *Behavior, Animal; Dominance-Subordination; Fear; *Horses; Play and Playthings; Sexual Behavior, Animal; Social Environment
Abstract Accurate diagnosis of the cause of aggression in horses is essential to determining the appropriate course of action. The affective forms of aggression include fear-induced, pain-induced, intermale, dominance, protective, maternal, learned, and redirected aggressions. Non-affective aggression includes play and sex-related forms. Irritable aggression and hypertestosteronism in mares are medical problems, whereas genetic factors, brain dysfunction, and self-mutilation are also concerns.
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Language English Summary Language Original Title
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ISSN 0749-0739 ISBN Medium
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Notes PMID:3492250 Approved no
Call Number refbase @ user @ Serial 674
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Author (up) Beaver, B.V.
Title Problems & values associated with dominance Type Journal Article
Year 1981 Publication Veterinary medicine, small animal clinician : VM, SAC Abbreviated Journal Vet Med Small Anim Clin
Volume 76 Issue 8 Pages 1129-1131
Keywords Animals; *Animals, Domestic; *Behavior, Animal; Cats; Cattle; Dogs; Horses; *Social Dominance; Swine
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0042-4889 ISBN Medium
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Notes PMID:6914851 Approved no
Call Number refbase @ user @ Serial 678
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