| Records |
| Author |
Bekoff,M; Allen, C; Burghardt, G. M. |
| Title |
The cognitive animal: Empirical and theoretical perspectives on animal cognition |
Type |
Journal Article |
| Year |
2003 |
Publication |
Computers and Mathematics with Applications |
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| Volume |
46 |
Issue |
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Pages  |
508-509 |
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The MIT Press |
Place of Publication |
Cambridge, MA. |
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refbase @ user @ |
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3496 |
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| Author |
Nicol, C.J.; Potzsch, C.; Lewis, K.; Green, L.E. |
| Title |
Matched concurrent case-control study of risk factors for feather pecking in hens on free-range commercial farms in the UK |
Type |
Journal Article |
| Year |
2003 |
Publication |
British poultry science |
Abbreviated Journal |
Br Poult Sci |
| Volume |
44 |
Issue |
4 |
Pages |
515-523 |
| Keywords |
*Aggression; Analysis of Variance; Animal Husbandry/methods; Animals; Case-Control Studies; Chickens/*physiology; Feathers; Female; Multivariate Analysis; Odds Ratio; Regression Analysis; Species Specificity |
| Abstract |
1. The aim of the study was to compare the management and husbandry of free-range flocks in the UK where feather pecking was either present (case) or absent (control). 2. One hundred flocks were enrolled into a concurrent case-control study: 50 where birds had recently started feather pecking, and 50 matched control flocks where birds of the same age had not started feather pecking. 3. Information was obtained from a detailed interview with the flock manager, and by direct inspection of the flock, house and range. 4. Initial univariate analyses revealed that case flocks were more likely to comprise ISA Brown than Lohmann, were more likely to be restricted from litter areas to prevent floor eggs, and were less likely to use the outside range. 5. Cluster analysis indicated that feather pecking was not associated with any particular husbandry system. 6. The only influential risk factor significant in the multivariable conditional logistic regression analysis was use of the outdoor range. The risk of feather pecking was reduced 9-fold in flocks where more than 20% of birds used the range on sunny days (odds ratio = 0.12). Use of the range was positively associated with the presence of trees and/or hedges on the range. |
| Address |
Department of Clinical Veterinary Science, University of Bristol, England. c.j.nicol@bris.ac.uk |
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English |
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0007-1668 |
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| Notes |
PMID:14584840 |
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no |
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refbase @ user @ |
Serial |
79 |
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| Author |
Fazio, E.; Ferlazzo, A. |
| Title |
Evaluation of Stress During Transport |
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Journal Article |
| Year |
2003 |
Publication |
Veterinary Research Communications |
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| Volume |
27 |
Issue |
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Pages |
519-524 |
| Keywords |
hormones – physiological variables – stress – transport procedures |
| Abstract |
Domestic animals are transported for a variety of reasons including breeding, biomedical purposes, slaughter and, in the case of sporting horses, for competitions, pleasure activities or ceremonial proceedings. Studies to determine the amount of stress on farm animals during transport often have highly variable results and are difficult to interpret. The reaction of animals to stressors depends on the duration and intensity of the stressors, the animal's previous experience, its physiological status and the immediate environmental restraints. Behavioural, haematological, haematochemical, physiological and neuro-hormonal (ß-endorphin, ACTH, cortisol, iodothyronines) variables are discussed on the basis of handling, loading and transport procedures of animals. |
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Equine Behaviour @ team @ |
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4391 |
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Day, R.L.; Coe, R.L.; Kendal, J.R.; Laland, K.N. |
| Title |
Neophilia, innovation and social learning: a study of intergeneric differences in callitrichid monkeys |
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Journal Article |
| Year |
2003 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
65 |
Issue |
3 |
Pages |
559-571 |
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| Abstract |
In a comparative study of neophilia, innovation and social attentiveness we exposed individuals in seven callitrichid species, from three genera, to novel extractive foraging tasks. The results revealed consistently shorter response latencies, higher levels of successful and unsuccessful manipulation, and greater attentiveness to the task and to conspecifics inLeontopithecus (lion tamarins) than in both Saguinus (tamarins) and Callithrix (marmosets). This is consistent with the hypothesis that species dependent upon manipulative and explorative foraging tend to be less neophobic and more innovative than other species. Furthermore, Callithrix appeared to be less neophobic than Saguinus; ifCallithrix is regarded as the greater specialist, this result is inconsistent with the hypothesis that neophobia is associated with foraging specialization. We consider the relevance of our findings to taxonomic relationships, and to technical and Machiavellian intelligence hypotheses and discuss the implications for captive breeding and reintroduction strategies.Copyright 2003 Published by Elsevier Science Ltd on behalf of The Association for the Study of Animal Behaviour. |
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0003-3472 |
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Equine Behaviour @ team @ |
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6035 |
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Sluyter F.; Arseneault L.; Moffitt T.E.; Veenema A.H.; de Boer S.; Koolhaas J.M. |
| Title |
Toward an Animal Model for Antisocial Behavior: Parallels Between Mice and Humans: Aggression |
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Journal Article |
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2003 |
Publication |
Behavior Genetics |
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33 |
Issue |
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Pages |
563-574 |
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no |
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refbase @ user @ |
Serial |
3497 |
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Pinchbeck, G.L.; Clegg, P.D.; Proudman, C.J.; Morgan, K.L.; French, N.P. |
| Title |
Case-control study to investigate risk factors for horse falls in hurdle racing in England and Wales |
Type |
Journal Article |
| Year |
2003 |
Publication |
The Veterinary Record |
Abbreviated Journal |
Vet. Rec. |
| Volume |
152 |
Issue |
19 |
Pages |
583-587 |
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Accidental Falls/*statistics & numerical data; Animals; Athletic Injuries/epidemiology/etiology/*veterinary; Case-Control Studies; England/epidemiology; Horses/*injuries; Risk Factors; Running/injuries; Wales/epidemiology |
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Between March 1, 2000 and August 31, 2001, a case-control study was conducted on 12 racecourses in England and Wales to identify and quantify the risk factors associated with horse falls in hurdle races. The cases and controls were defined so that variables relating to the horse, the jockey, the race and racecourse, and the jump could be considered. The cases were defined as a jumping effort at a hurdle flight that resulted in a fall, and the controls were defined as a successful jump over a hurdle at any of the 12 racecourses within 14 days before or after the case fall. Conditional logistic regression was used to examine the univariable and multivariable relationships between the predictor variables and the risk of falling. The risk of falling was significantly associated with the position of the jump in the race, and with the distance and speed of the race. A horse's previous racing experience and history were also significantly associated with the risk of falling and horses participating in their first hurdle race were at almost five times greater risk of falling than horses that had hurdled before. |
| Address |
Epidemiology Group, Department of Veterinary Clinical Science and Animal Husbandry, University of Liverpool, Leahurst, Neston CH64 7TE |
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English |
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0042-4900 |
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PMID:12762486 |
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no |
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Equine Behaviour @ team @ |
Serial |
3782 |
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Pongrácz, P.; Miklósi, Á.; Kubinyi, E.; Topál, J.; Csányi, V. |
| Title |
Interaction between individual experience and social learning in dogs |
Type |
Journal Article |
| Year |
2003 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
65 |
Issue |
3 |
Pages |
595-603 |
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We investigated the interaction between individual experience and social learning in domestic dogs,Canis familiaris . We conducted two experiments using detour tests, where an object or food was placed behind a transparent, V-shaped wire-mesh fence, such that the dogs could get the reward by going around the fence. In some groups, two open doors were offered as an alternative, easier way to reach the reward. In experiment 1 we opened the doors only in trial 1, then closed them for trials 2 and 3. In experiment 2 other dogs were first taught to detour the fence with closed doors after they had observed a detouring human demonstrator, then we opened the doors for three subsequent trials. In experiment 1 all dogs reached the reward by going through the doors in trial 1, but their detouring performance was poor after the doors had been closed, if they had to solve the task on their own. However, dogs in the experimental group that were allowed to watch a detouring human demonstrator after the doors had been closed showed improved detouring ability compared with those that did not receive a demonstration of detouring. In experiment 2 the dogs tended to keep on detouring along the fence even if the doors had been opened, giving up a chance to get behind the fence by a shorter route. These results show that dogs can use information gained by observing a human demonstrator to overcome their own mistakenly preferred solution in a problem situation. In a reversed situation social learning can also contribute to a preference for a less adaptive behaviour. However, only repeated individual and social experience leads to a durable manifestation of maladaptive behaviour. Copyright 2003 Published by Elsevier Science Ltd on behalf of The Association for the Study of Animal Behaviour. |
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refbase @ user @ |
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565 |
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Fazio, F.; Assenza, A.; Piccione, G.; Caola, G. |
| Title |
Periodic Monitoring of Some Physiological Parameters during Training in the Athletic Horse |
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Journal Article |
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2003 |
Publication |
Veterinary Research Communications |
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| Volume |
27 |
Issue |
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Pages |
595-598 |
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Equine Behaviour @ team @ |
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4384 |
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Gammell, M.P.; de Vries, H.; Jennings, D.J.; Carlin, C.M.; Hayden, T.J. |
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David's score: a more appropriate dominance ranking method than Clutton-Brock et al.'s index |
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Journal Article |
| Year |
2003 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
66 |
Issue |
3 |
Pages |
601-605 |
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refbase @ user @ |
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453 |
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Spadavecchia, C.; Arendt-Nielsen, L.; Andersen, O.K.; Spadavecchia, L.; Doherr, M.; Schatzmann, U. |
| Title |
Comparison of nociceptive withdrawal reflexes and recruitment curves between the forelimbs and hind limbs in conscious horses |
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Journal Article |
| Year |
2003 |
Publication |
American journal of veterinary research |
Abbreviated Journal |
Am J Vet Res |
| Volume |
64 |
Issue |
6 |
Pages |
700-707 |
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Animals; Consciousness; Female; Forelimb/*physiology; Hindlimb/*physiology; Horses/*physiology; Male; Nociceptors/physiology; Pain/*physiopathology/*veterinary; Pain Threshold/physiology; Recruitment, Neurophysiological/physiology; Reflex/*physiology |
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OBJECTIVE: To compare nociceptive withdrawal reflexes (NWRs) evoked from the distal aspect of the left forelimb and hind limb in conscious standing horses and to investigate NWR recruitment for graded electrical stimulation intensities. ANIMALS: 20 adult horses. PROCEDURE: Surface electromyographic (EMG) activity evoked by transcutaneous electrical stimulation of the digital palmar (or plantar) nerve was recorded from the common digital extensor and cranial tibial muscles. Stimuli consisted of 25-millisecond train-of-5 constant current pulses. Current intensity was gradually increased until NWR threshold intensity was reached. The EMG signal was analyzed for quantification of the NWR. Behavioral responses accompanying the reflex were scored (scale, 0 to 5). The NWR recruitment curves were determined at 0.9, 1.1, 1.2, and 1.3 times the NWR threshold intensity. RESULTS: The NWR threshold was significantly higher for the hind limb (median value, 6.6 mA; range, 3 to 10 mA) than the forelimb (median, 3 mA; range, 1.7 to 5.5 mA). The NWR of the hind limb had a significantly longer latency (median, 122.8 milliseconds; range, 106 to 172 milliseconds), compared with the forelimb (median, 98 milliseconds; range, 86 to 137 milliseconds), and it was associated with significantly stronger behavioral reactions. Gradual increase of NWR amplitude was evident at increasing stimulation intensities and supported by the behavioral observations. CONCLUSIONS AND CLINICAL RELEVANCE: We documented NWRs evoked from the forelimb and hind limb and their recruitment with stimuli of increasing intensity in horses. These results provide a basis for use of NWRs in studies on nociceptive modulation in horses. |
| Address |
Department of Clinical Veterinary Sciences, University of Berne, Switzerland |
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English |
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0002-9645 |
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| Notes |
PMID:12828255 |
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refbase @ user @ |
Serial |
93 |
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