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Author Houpt, K.A.; Zahorik, D.M.; Swartzman-Andert, J.A.
Title Taste aversion learning in horses Type Journal Article
Year 1990 Publication Journal of animal science Abbreviated Journal J. Anim Sci.
Volume (down) 68 Issue 8 Pages 2340-2344
Keywords Animal Feed; Animals; *Avoidance Learning; Feeding Behavior/*psychology; *Food Preferences; Horses/physiology/*psychology; *Taste
Abstract The ability of ponies to learn to avoid a relatively novel food associated with illness was tested in three situations: when illness occurred immediately after consuming a feed; when illness occurred 30 min after consuming a feed; and when illness was contingent upon eating one of three feeds offered simultaneously. Apomorphine was used to produce illness. The feeds associated with illness were corn, alfalfa pellets, sweet feed and a complete pelleted feed. The ponies learned to avoid all the fees except the complete feed when apomorphine injection immediately followed consumption of the feed. However, the ponies did not learn to avoid a feed if apomorphine was delayed 30 min after feed consumption. They could learn to avoid alfalfa pellets, but not corn, when these feeds were presented with the familiar “safe foods,” oats and soybean meal. Ponies apparently are able to learn a taste aversion, but there were constraints on this learning ability. Under the conditions of this study, they did not learn to avoid a food that made them sick long after consumption of the food, and they had more difficulty learning to avoid highly palatable feeds.
Address Cornell University, Ithaca, NY 14853
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Language English Summary Language Original Title
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ISSN 0021-8812 ISBN Medium
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Notes PMID:2401656 Approved no
Call Number refbase @ user @ Serial 41
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Author McCall, C.A.
Title A Review of Learning Behavior in Horses and its Application in Horse Training Type Journal Article
Year 1990 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.
Volume (down) 68 Issue 1 Pages 75-81
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Abstract A literature review of the equine learning research conducted in the past 20 yr revealed that the purpose of most of the studies was to determine whether horses respond to learning situations in the same way that other animals do. The results indicated that horses can discriminate many different types of stimuli, and they learn through stimulus-response- reinforcement chains. Most equine learning studies have utilized learning tasks depending on primary positive reinforcement to get the horses to work the tests. Yet, the majority of horse trainers use negative reinforcement more often than primary positive reinforcement in their training procedures. Therefore, past research often did not have a direct application to training methods commonly utilized in the horse industry. Research also demonstrated that 1) early experiences of horses can affect learning ability later, 2) equine memory is efficient and 3) concentrating learning mals in long training sessions decreases equine learning efficiency. Many factors that might affect equine learning ability and be applicable to training practices in the horse industry have not been thoroughly investigated; for example, interactions between nutrition and learning and between exercise and learning, the use of negative and secondary reinforcements in horse training, and the horse's ability to make few initial errors compared to its ability to eliminate errors as training progresses all require investigation in future equine learning studies. N1 -
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Call Number refbase @ user @ Serial 1992
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Author Cancedda, M.
Title [Social and behavioral organization of horses on the Giara (Sardinia): distribution and aggregation] Type Journal Article
Year 1990 Publication Bollettino della Societa italiana di biologia sperimentale Abbreviated Journal Boll Soc Ital Biol Sper
Volume (down) 66 Issue 11 Pages 1089-1096
Keywords Animals; *Animals, Wild/physiology/psychology; Environment; Female; *Horses/physiology/psychology; Italy; Male; Population Density; Sexual Behavior, Animal; *Social Behavior; Social Dominance; Water
Abstract In this paper some considerations on the environment of the 42 Kmq of the volcanic-basaltic Giara tableland are discussed. Conditioning by the environment and its effect on the distribution of a population of 712 horses is illustrated in view of their social and behavioural organization.
Address Istituto di Fisiologia Generale e Speciale, Universita di Sassari
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Language Italian Summary Language Original Title Introduzione all'organizzazione sociale e comportamentale dei cavallini sulla Giara (Sardegna): distribuzione ed aggregazione
Series Editor Series Title Abbreviated Series Title
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ISSN 0037-8771 ISBN Medium
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Notes PMID:2095819 Approved no
Call Number refbase @ user @ Serial 673
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Author Gordon, I.J.; Lindsay, W.K.
Title Could Mammalian Herbivores “Manage” Their Resources? Type Journal Article
Year 1990 Publication Oikos Abbreviated Journal Oikos
Volume (down) 59 Issue 2 Pages 270-280
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Abstract The concept of resource management has gone hand in hand with group selection arguments. For this reason, it has been cast aside in the era of evolutionary theory which assumes that foraging strategies must have evolved under selection operating to maximise an individual's inclusive fitness. However, results from empirical studies show that under favourable environmental and social circumstances, resource management could be selectively advantageous. Much of the recent literature on plant-herbivore interactions suggest that herbivory can result in changes in the resource base which are assumed to increase the intake and fitness of the herbivore. As a result, a number of authors suggest that herbivores manage their resource utilisation to maximise the flow of nutrients from these resources. Long term territoriality or the exclusive use of a home range are the social systems most likely to favour selection for prudent resource exploitation. This review argues that, in many habitats, resource management strategies are not feasible, as individuals have little control over the way resources are depleted and renewed. Thus far, very little evidence is available showing that herbivorous mammals actively manage the resources which they utilise.
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Call Number Equine Behaviour @ team @ Serial 2297
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Author Iacobucci, D.; Wasserman, S.
Title Social networks with two sets of actors Type Journal Article
Year 1990 Publication Psychometrika Abbreviated Journal Psychometrika
Volume (down) 55 Issue 4 Pages 707-720
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Abstract Abstract  Traditional network research analyzes relational ties within a single group of actors: the models presented in this paper involve relational ties exist beteen two distinct sets of actors. Statistical models for traditional networks in which relations are measured within a group simplify when modeling unidirectional relations measured between groups. The traditional paradigm results in a one-mode socionatrix; the network paradigm considered in this paper results in a two-mode socionatrix; A statistical model is presented, illustrated on a sample data set, and compared to its traditional counterpart. Extensions are discussed, including those that model multivariate relations simultaneously, and those that allow for the inclustion of attributes of the individuals in the group.
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Call Number Equine Behaviour @ team @ Serial 5036
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Author Boesch C; Boesch H
Title Tool use and tool making in wild chimpanzees Type Journal Article
Year 1990 Publication Folia Primatol. Abbreviated Journal
Volume (down) 54 Issue Pages 86
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Call Number Equine Behaviour @ team @ Serial 2983
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Author Visalberghi E
Title Tool use in Cebus Type Journal Article
Year 1990 Publication Folia Primatol. Abbreviated Journal
Volume (down) 54 Issue Pages 146
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Call Number Equine Behaviour @ team @ Serial 3045
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Author Heyes, C.M.; Dawson, G.R.
Title A demonstration of observational learning in rats using a bidirectional control Type Journal Article
Year 1990 Publication Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology Abbreviated Journal Q J Exp Psychol B
Volume (down) 42 Issue 1 Pages 59-71
Keywords appetite; attention; imitation; problem solving; psychomotor performance; Appetitive Behavior; Attention; Imitative Behavior; Problem Solving; Psychomotor Performance
Abstract Hungry rats observed a conspecific demonstrator pushing a single manipulandum, a joystick, to the right or to the left for food reward and were then allowed access to the joystick from a different orientation. The effects of right-pushing vs left-pushing observation experience on (1) response acquisition, (2) reversal of a left-right discrimination, and (3) responding in extinction, were examined. Rats that had observed left-pushing made more left responses during acquisition than rats that had observed right-pushing, and rats that had observed demonstrators pushing in the direction that had previously been reinforced took longer to reach criterion reversal and made more responses in extinction than rats that had observed demonstrators pushing in the opposite direction to that previously reinforced. These results provide evidence that rats are capable of learning a response, or a response-reinforcer contingency, through conspecific observation.
Address University of Cambridge, U.K.
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ISSN 02724995 (Issn) ISBN Medium
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Notes Cited By (since 1996): 49; Export Date: 17 May 2007; Source: Scopus; Language of Original Document: English; Correspondence Address: Heyes, C.M. Approved no
Call Number Serial 1766
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Author Heyes CM; Dawson GR
Title A demonstration of observational learning using a bidirectional control Type Journal Article
Year 1990 Publication Q. J. Exp. Psychol. Abbreviated Journal
Volume (down) 42 Issue Pages 59
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Call Number Equine Behaviour @ team @ Serial 3008
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Author Spear, N.E.; Miller, J.S.; Jagielo, J.A.
Title Animal Memory and Learning Type Journal Article
Year 1990 Publication Annual Review of Psychology Abbreviated Journal
Volume (down) 41 Issue 1 Pages 169-211
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Notes Approved no
Call Number refbase @ user @ Serial 3538
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