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Author Fisher, J.; Hinde, R. A. openurl 
  Title The opening of milk bottles by birds Type Journal Article
  Year 1994 Publication British Birds Abbreviated Journal British Birds  
  Volume (up) Issue 42 Pages 347-357  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6525  
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Author Byrne R.W. openurl 
  Title The evolution of intelligence Type Book Chapter
  Year 1994 Publication Behaviour and Evolution Abbreviated Journal  
  Volume (up) Issue Pages 223-265  
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  Publisher Cambridge University Press Place of Publication Cambridge,UK Editor P.J.B. Slater and T.R. Halliday  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6566  
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Author Bekoff, M. url  openurl
  Title Cognitive Ethology and the Treatment of Non-Human Animals: How Mati'ers of Mind Inform Mati'ers of Welfare Type Journal Article
  Year 1994 Publication Animal Welfare Abbreviated Journal  
  Volume (up) 3 Issue Pages 75-96  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 3457  
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Author Wilson, S. D.; Clark, A. B.; Coleman, K.; Dearstyne, T. url  doi
openurl 
  Title Shyness and boldness in humans and other animals Type Journal Article
  Year 1994 Publication Trends in Ecology & Evolution Abbreviated Journal Trends. Ecol. Evol  
  Volume (up) 9 Issue 11 Pages 442-446  
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  Abstract The shy-bold continuum is a fundamental axis of behavioral variation in humans and at least some other species, but its taxonomic distribution and evolutionary implications are unknown. Models of optimal risk, density- or frequency-dependent selection, and phenotypic plasticity can provide a theoretical framework for understanding shyness and boldness as a product of natural selection. We sketch this framework and review the few empirical studies of shyness and boldness in natural populations. The study of shyness and boldness adds an interesting new dimension to behavioral ecology by focusing on the nature of continuous behavioral variation that exists within the familiar categories of age, sex and size.  
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  ISSN 0169-5347 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5161  
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Author Irvine, C.H.G.; Alexander, S.L. url  doi
openurl 
  Title Factors affecting the circadian rhythm in plasma cortisol concentrations in the horse Type Journal Article
  Year 1994 Publication Domestic Animal Endocrinology Abbreviated Journal Domest. Anim. Endocrinol.  
  Volume (up) 11 Issue 2 Pages 227-238  
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  Abstract In horses, a circadian rhythm in plasma cortisol concentrations has been reported in some but not all studies. When a rhythm occurred, horses were accustomed to a management routine, comprising stabling, feeding and sometimes exercise, which may entrain a circadian pattern. In this work, we monitored plasma cortisol by collecting jugular blood through indwelling cannulae from four groups: 1): 10 untrained, unperturbed mares grazing excess pasture, bled hourly for 26 hr; 2) 4 mares housed in a barn for 48 hr before sampling every 15 min for 20–24 hr; 3) 5 mares placed in an outdoor yard for sampling every 30 min from 0930–2100 hr; and 4) 4 stabled racehorses in training, bled every 30 min from 0730–2000 hr and once the following morning at 0830 hr. Plasma cortisol showed a similarly-timed circadian rhythm (P<0.0001) in all Group 1 horses, with a peak at 0600–0900 hr, and a nadir at 1800–2100 hr. By contrast, cortisol concentrations did not vary with time in either Group 2 or 3. Neither daily mean nor peak cortisol values differed in Group 1 and 2 (i.e. bled for >= 20 hr); however nadir values were higher (P<0.05) in Group 2. In Group 4, cortisol declined (P=0.004) during the sampling period but had returned to initial concentrations the next morning. Values did not differ from those for Group 1, except between 1000 and 1300 hr when cortisol in Group 4 was lower (P<0.05). We conclude that a circadian cortisol rhythm exists in horses in the absence of any known cues imposed by humans. However, this rhythm can be obliterated by the minor perturbation of removing the horse from its accustomed environment. By contrast, the rhythm occurs in trained racehorses, suggesting either that they have adapted to their environment thereby allowing an endogenous rhythm to emerge, or that the rhythm is entrained by their daily routine. These observations highlight the difficulties in determining the cortisol status of a horse, since measurements will be affected by time of day, the occurrence of short-term fluctuations, and how accustomed the horse is to its environment.  
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  ISSN 0739-7240 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5590  
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Author Atock, M.A.; Williams, R.B. openurl 
  Title Welfare of competition horses Type Journal Article
  Year 1994 Publication Revue Scientifique et Technique (International Office of Epizootics) Abbreviated Journal Rev Sci Tech  
  Volume (up) 13 Issue 1 Pages 217-232  
  Keywords *Animal Welfare; Animals; Doping in Sports; Ethics; Heat; Horses/*physiology; Housing, Animal/standards; Humidity; International Cooperation; Sports/*standards; Transportation/standards; Veterinary Medicine  
  Abstract In the large majority of cases and circumstances, horses benefit from their association with man. However, abuse of horses can occur, due to neglect or through the pressures of competition. The welfare of all animals, including competition horses, has become increasingly topical over the past ten years. Equestrian sport is coming under closer public scrutiny due to reports of apparent abuse. The bodies responsible for regulating these sports strenuously endeavour to protect the welfare of horses which compete under their rules and regulations. The Federation Equestre Internationale (FEI: International Equestrian Federation) is the sole authority for all international events in dressage, show-jumping, three-day event, driving, endurance riding and vaulting. The FEI rules illustrate the ways in which the welfare of competing horses is safeguarded.  
  Address Federation Equestre Internationale, Lausanne, Switzerland  
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  Series Volume Series Issue Edition  
  ISSN 0253-1933 ISBN Medium  
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  Notes PMID:8173097 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3747  
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Author url  doi
openurl 
  Title Winter horse care Type Journal Article
  Year 1994 Publication Journal of Equine Veterinary Science Abbreviated Journal  
  Volume (up) 14 Issue 2 Pages 115-117  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4664  
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Author Chiba, K.; Ikai, A.; Kawamura-Konishi, Y.; Kihara, H. doi  openurl
  Title Kinetic study on myoglobin refolding monitored by five optical probe stopped-flow methods Type Journal Article
  Year 1994 Publication Proteins Abbreviated Journal Proteins  
  Volume (up) 19 Issue 2 Pages 110-119  
  Keywords Animals; Chromatography, Gel; Circular Dichroism; Horses; Kinetics; Metmyoglobin/analogs & derivatives/chemistry; Myoglobin/*chemistry; *Protein Folding; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Urea  
  Abstract The refolding kinetics of horse cyanometmyoglobin induced by concentration jump of urea was investigated by five optical probe stopped-flow methods: absorption at 422 nm, tryptophyl fluorescence at around 340 nm, circular dichroism (CD) at 222 nm, CD at 260 nm, and CD at 422 nm. In the refolding process, we detected three phases with rate constants of > 1 x 10(2) s-1, (4.5-9.3) s-1, and (2-5) x 10(-3) s-1. In the fastest phase, a substantial amount of secondary structure (approximately 40%) is formed within the dead time of the CD stopped-flow apparatus (10.7 ms). The kinetic intermediate populated in the fastest phase is shown to capture a hemindicyanide, suggesting that a “heme pocket precursor” recognized by hemindicyanide must be constructed within the dead time. In the middle phase, most of secondary and tertiary structures, especially around the captured hemindicyanide, have been constructed. In the slowest phase, we detected a minor structural rearrangement accompanying the ligand-exchange reaction in the fifth coordination of ferric iron. We present a possible model for the refolding process of myoglobin in the presence of the heme group.  
  Address Laboratory of Biodynamics, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, Kanagawa, Japan  
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  ISSN 0887-3585 ISBN Medium  
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  Notes PMID:8090705 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3799  
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Author Zentall, T.R.; Sherburne, L.M. openurl 
  Title Role of differential sample responding in the differential outcomes effect involving delayed matching by pigeons Type Journal Article
  Year 1994 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process  
  Volume (up) 20 Issue 4 Pages 390-401  
  Keywords Animals; Behavior, Animal; Choice Behavior; *Columbidae; *Discrimination Learning; Feeding Behavior; Task Performance and Analysis  
  Abstract The role of differential sample responding in the differential outcomes effect was examined. In Experiment 1, we trained pigeons on a one-to-many matching task with differential sample responding required. Differential outcomes were associated with samples and comparisons, with comparisons only, or with neither samples nor comparisons. Slopes of delay functions for trials with pecked versus nonpecked samples suggested use of a single-code-default strategy in the nondifferential-outcomes group but not in the differential-outcomes groups. In Experiment 2, differential sample responding and differential outcomes were manipulated independently. Again, there were significant differences in the relative slopes of the delay functions. Results suggest that differential outcomes exert their effect independently of differential sample responding.  
  Address Department of Psychology, University of Kentucky, Lexington 40506  
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  Series Volume Series Issue Edition  
  ISSN 0097-7403 ISBN Medium  
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  Notes PMID:7964521 Approved no  
  Call Number refbase @ user @ Serial 257  
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Author Zentall, T.R.; Sherburne, L.M. openurl 
  Title Transfer of value from S+ to S- in a simultaneous discrimination Type Journal Article
  Year 1994 Publication Journal of experimental psychology. Animal behavior processes Abbreviated Journal J Exp Psychol Anim Behav Process  
  Volume (up) 20 Issue 2 Pages 176-183  
  Keywords Animals; *Appetitive Behavior; Attention; Color Perception; Columbidae; *Discrimination Learning; Female; Male; Motivation; Orientation; Pattern Recognition, Visual; *Problem Solving; *Reinforcement Schedule; *Transfer (Psychology)  
  Abstract Value transfer theory has been proposed to account for transitive inference effects (L. V. Fersen, C. D. L. Wynne, J. D. Delius, & J. E. R. Staddon, 1991), in which following training on 4 simultaneous discriminations (A+B-, B+C-, C+D-, D+E-) pigeons show a preference for B over D. According to this theory, some of the value of reinforcement acquired by each S+ transfers to the S-. In the transitive inference experiment, C (associated with both reward and nonreward) can transfer less value to D than A (associated only with reward) can transfer to B. Support for value transfer theory was demonstrated in 2 experiments in which an S- presented in the context of a stimulus to which responses were always reinforced (S+) was preferred over an S- presented in the context of a stimulus to which responses were sometimes reinforced (S +/-).  
  Address Department of Psychology, University of Kentucky, Lexington 40506  
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  Series Volume Series Issue Edition  
  ISSN 0097-7403 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8189186 Approved no  
  Call Number refbase @ user @ Serial 258  
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