Records |
Author |
Cassiat, G.; Pourcelot, P.; Tavernier, L.; Geiger, D.; Denoix, J.M.; Degueurce, D. |
Title |
Influence of individual competition level on back kinematics of horses jumping a vertical fence |
Type |
Journal Article |
Year |
2004 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
36 |
Issue |
8 |
Pages |
748-753 |
Keywords |
Animals; Back/*physiology; Biomechanics; Female; Forelimb/*physiology; Gait/*physiology; Hindlimb/*physiology; Horses/*physiology; Image Processing, Computer-Assisted; Imaging, Three-Dimensional/veterinary; Locomotion/physiology; Male; Video Recording |
Abstract |
REASONS FOR PERFORMING STUDY: The costs and investments required for the purchase and training of showjumpers justify the need to find selection means for jumping horses. Use of objective kinematic criteria correlated to jumping ability could be helpful for this assessment. OBJECTIVES: To compare back kinematics between 2 groups of horses of different competition levels (Group 1, competing at high level; Group 2 competing at low level) while free jumping over a 1 m vertical fence. METHODS: Three-dimensional recordings were performed using 2 panning cameras. Kinematic parameters of the withers and tuber sacrale (vertical displacement, vertical and horizontal velocities), backline inclination and flexion-extension motion of the 3 main dorsal segments (thoracic, thoracolumbar and lumbosacral) were analysed. RESULTS: Group 2 horses had a lower displacement of their withers and tuber sacrale from the end of the last approach stride until the first departure stride (P<0.05). As a result, they increased the flexion of their thoracolumbar and lumbosacral junctions during the hindlimb swing phase before take-off (P<0.05). However, withers and tuber sacrale velocities were slightly modified. Group 1 horses pitched their backline less forward during the forelimb stance phase before take-off and straightened it more after landing (P<0.05), probably indicating a more efficient strutting action of their forelimbs. CONCLUSIONS AND POTENTIAL RELEVANCE: Because significant differences in back motion were found between good and poor jumpers when jumping a 1 m high fence, criteria based on certain back kinematics can be developed that may help in the selection of talented showjumpers. |
Address |
UMR INRA-ENVA de Biomecanique et Pathologie Locomotrice du Cheval, Ecole Nationale Veterinaire d'Alfort, Avenue du General de Gaulle, 94704 Maisons Alfort, France |
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English |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0425-1644 |
ISBN |
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Notes |
PMID:15656509 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4042 |
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Author |
Matzke, S.M.; Oubre, J.L.; Caranto, G.R.; Gentry, M.K.; Galbicka, G. |
Title |
Behavioral and immunological effects of exogenous butyrylcholinesterase in rhesus monkeys |
Type |
Journal Article |
Year |
1999 |
Publication |
Pharmacology, Biochemistry, and Behavior |
Abbreviated Journal |
Pharmacol Biochem Behav |
Volume |
62 |
Issue |
3 |
Pages |
523-530 |
Keywords |
Animals; Antibody Formation/drug effects; Behavior, Animal/*drug effects; Butyrylcholinesterase/*immunology/pharmacokinetics/*pharmacology; Cognition/drug effects; Color Perception/drug effects; Conditioning, Operant/drug effects; Discrimination Learning/drug effects; Half-Life; Horses; Humans; Macaca mulatta; Male |
Abstract |
Although conventional therapies prevent organophosphate (OP) lethality, laboratory animals exposed to such treatments typically display behavioral incapacitation. Pretreatment with purified exogenous human or equine serum butyrylcholinesterase (Eq-BuChE), conversely, has effectively prevented OP lethality in rats and rhesus monkeys, without producing the adverse side effects associated with conventional treatments. In monkeys, however, using a commercial preparation of Eq-BuChE has been reported to incapacitate responding. In the present study, repeated administration of commercially prepared Eq-BuChE had no systematic effect on behavior in rhesus monkeys as measured by a six-item serial probe recognition task, despite 7- to 18-fold increases in baseline BuChE levels in blood. Antibody production induced by the enzyme was slight after the first injection and more pronounced following the second injection. The lack of behavioral effects, the relatively long in vivo half-life, and the previously demonstrated efficacy of BuChE as a biological scavenger for highly toxic OPs make BuChE potentially more effective than current treatment regimens for OP toxicity. |
Address |
Walter Reed Army Institute of Research, Washington, DC 20307-5100, USA |
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English |
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Edition |
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ISSN |
0091-3057 |
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Notes |
PMID:10080246 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4064 |
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Author |
Bottoms, G.D.; Roesel, O.F.; Rausch, F.D.; Akins, E.L. |
Title |
Circadian variation in plasma cortisol and corticosterone in pigs and mares |
Type |
Journal Article |
Year |
1972 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
Am J Vet Res |
Volume |
33 |
Issue |
4 |
Pages |
785-790 |
Keywords |
Animals; *Circadian Rhythm; Corticosterone/*blood; Female; Horses/*metabolism; Hydrocortisone/*blood; Methods; Swine/*metabolism; Time Factors |
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English |
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ISSN |
0002-9645 |
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Notes |
PMID:5017871 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4074 |
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Author |
Wolf, M.; van Doorn, G.S.; Leimar, O.; Weissing, F.J. |
Title |
Life-history trade-offs favour the evolution of animal personalities |
Type |
Journal Article |
Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
447 |
Issue |
7144 |
Pages |
581-584 |
Keywords |
Aggression/physiology/psychology; Animals; Behavior, Animal/*physiology; *Evolution; Exploratory Behavior/physiology; Models, Biological; Personality/*physiology; Predatory Behavior/physiology; Reproduction/physiology; Risk-Taking; Selection (Genetics) |
Abstract |
In recent years evidence has been accumulating that personalities are not only found in humans but also in a wide range of other animal species. Individuals differ consistently in their behavioural tendencies and the behaviour in one context is correlated with the behaviour in multiple other contexts. From an adaptive perspective, the evolution of animal personalities is still a mystery, because a more flexible structure of behaviour should provide a selective advantage. Accordingly, many researchers view personalities as resulting from constraints imposed by the architecture of behaviour (but see ref. 12). In contrast, we show here that animal personalities can be given an adaptive explanation. Our argument is based on the insight that the trade-off between current and future reproduction often results in polymorphic populations in which some individuals put more emphasis on future fitness returns than others. Life-history theory predicts that such differences in fitness expectations should result in systematic differences in risk-taking behaviour. Individuals with high future expectations (who have much to lose) should be more risk-averse than individuals with low expectations. This applies to all kinds of risky situations, so individuals should consistently differ in their behaviour. By means of an evolutionary model we demonstrate that this basic principle results in the evolution of animal personalities. It simultaneously explains the coexistence of behavioural types, the consistency of behaviour through time and the structure of behavioural correlations across contexts. Moreover, it explains the common finding that explorative behaviour and risk-related traits like boldness and aggressiveness are common characteristics of animal personalities. |
Address |
Theoretical Biology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, Kerklaan 30, 9751 NN Haren, The Netherlands |
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English |
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Edition |
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ISSN |
1476-4687 |
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Notes |
PMID:17538618 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4098 |
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Author |
Heath-Lange, S.; Ha, J.C.; Sackett, G.P. |
Title |
Behavioral measurement of temperament in male nursery-raised infant macaques and baboons |
Type |
Journal Article |
Year |
1999 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
Volume |
47 |
Issue |
1 |
Pages |
43-50 |
Keywords |
Age Factors; Animal Technicians; Animals; Animals, Newborn/psychology; Behavior, Animal/*physiology; Defecation; Facial Expression; Humans; Irritable Mood; Macaca fascicularis/*psychology; Male; Papio/*psychology; Sex Characteristics; Species Specificity; Temperament/*physiology; Urination; Vocalization, Animal; Weaning |
Abstract |
We define temperament as an individual's set of characteristic behavioral responses to novel or challenging stimuli. This study adapted a temperament scale used with rhesus macaques by Schneider and colleagues [American Journal of Primatology 25:137-155, 1991] for use with male pigtailed macaque (Macaca nemestrina, n = 7), longtailed macaque (M. fascicularis, n = 3), and baboon infants (Papio cynocephalus anubis, n = 4). Subjects were evaluated twice weekly for the first 5 months of age during routine removal from their cages for weighing. Behavioral measures were based on the subject's interactions with a familiar human caretaker and included predominant state before capture, response to capture, contact latency, resistance to tester's hold, degree of clinging, attention to environment, defecation/urination, consolability, facial expression, vocalizations, and irritability. Species differences indicated that baboons were more active than macaques in establishing or terminating contact with the tester. Temperament scores decreased over time for the variables Response to Capture and Contact Latency, indicating that as they grew older, subjects became less reactive and more bold in their interactions with the tester. Temperament scores changed slowly with age, with greater change occurring at younger ages. The retention of variability in reactivity between and within species may be advantageous for primates, reflecting the flexibility necessary to survive in a changing environment. |
Address |
Department of Psychology and Regional Primate Research Center, University of Washington, Seattle, USA. crgsjh@vmmc.org |
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English |
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ISSN |
0275-2565 |
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Notes |
PMID:9888720 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4117 |
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Author |
Gallup, G.G.J. |
Title |
On the rise and fall of self-conception in primates |
Type |
Journal Article |
Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
Volume |
818 |
Issue |
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Pages |
72-82 |
Keywords |
Animals; Phylogeny; Primates/*psychology; *Self Concept |
Abstract |
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Address |
Department of Psychology, State University of New York at Albany 12222, USA |
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English |
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Edition |
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ISSN |
0077-8923 |
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Notes |
PMID:9237466 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4134 |
Permanent link to this record |
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Author |
Morley, K.I.; Montgomery, G.W. |
Title |
The genetics of cognitive processes: candidate genes in humans and animals |
Type |
Journal Article |
Year |
2001 |
Publication |
Behavior Genetics |
Abbreviated Journal |
Behav Genet |
Volume |
31 |
Issue |
6 |
Pages |
511-531 |
Keywords |
Animals; *Chromosome Mapping; Drosophila melanogaster; Genetic Markers/*genetics; Humans; Intelligence/*genetics; Mental Retardation/genetics; Mice; Phenotype; Quantitative Trait, Heritable |
Abstract |
It has been hypothesized that numerous genes contribute to individual variation in human cognition. An extensive search of the scientific literature was undertaken to identify candidate genes which might contribute to this complex trait. A list of over 150 candidate genes that may influence some aspect of cognition was compiled. Some genes are particularly strong candidates based on evidence for involvement in cognitive processes in humans, mice, and Drosophila melanogaster. This survey confirms that many genes are associated with cognitive variation and highlights the potential importance of animal models in the study of human cognition. |
Address |
Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, Australia |
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English |
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0001-8244 |
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Notes |
PMID:11838530 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4141 |
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Author |
McClearn, G.E. |
Title |
Behavioral genetics |
Type |
Journal Article |
Year |
1971 |
Publication |
Behavioral Science |
Abbreviated Journal |
Behav Sci |
Volume |
16 |
Issue |
1 |
Pages |
64-81 |
Keywords |
Amino Acid Metabolism, Inborn Errors; Animals; Aptitude; Behavior, Animal; Chromosome Aberrations; Cognition; Cytogenetics; Female; *Genetics, Behavioral; Genetics, Population; Humans; Intelligence; Mental Retardation; Mice; Models, Biological; Personality; Phenylketonurias; Pregnancy; Research; Schizophrenia; Sex Chromosome Aberrations; Twins |
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ISSN |
0005-7940 |
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Notes |
PMID:5105941 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4150 |
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Author |
Jensen, G.D.; Gordon, B.N.; Wolfheim, J. |
Title |
Nursing behavior in infant monkeys: a sequence analysis |
Type |
Journal Article |
Year |
1975 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
Volume |
55 |
Issue |
1-2 |
Pages |
115-127 |
Keywords |
Animals; Dependency (Psychology); *Feeding Behavior; Female; *Macaca; Male; Sensory Deprivation; Social Behavior; Spatial Behavior |
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English |
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Series Volume |
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Edition |
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ISSN |
0005-7959 |
ISBN |
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Conference |
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Notes |
PMID:1191212 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4153 |
Permanent link to this record |
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Author |
Overli, O.; Korzan, W.J.; Hoglund, E.; Winberg, S.; Bollig, H.; Watt, M.; Forster, G.L.; Barton, B.A.; OVerli, E.; Renner, K.J.; Summers, C.H. |
Title |
Stress coping style predicts aggression and social dominance in rainbow trout |
Type |
Journal Article |
Year |
2004 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
Volume |
45 |
Issue |
4 |
Pages |
235-241 |
Keywords |
Adaptation, Psychological/physiology; Aggression/*physiology; Animals; *Dominance-Subordination; Female; *Hierarchy, Social; Hydrocortisone/blood; Individuality; Male; Matched-Pair Analysis; Oncorhynchus mykiss/*physiology; Stress/*physiopathology |
Abstract |
Social stress is frequently used as a model for studying the neuroendocrine mechanisms underlying stress-induced behavioral inhibition, depression, and fear conditioning. It has previously been shown that social subordination may result in increased glucocorticoid release and changes in brain signaling systems. However, it is still an open question which neuroendocrine and behavioral differences are causes, and which are consequences of social status. Using juvenile rainbow trout of similar size and with no apparent differences in social history, we demonstrate that the ability to win fights for social dominance can be predicted from the duration of a behavioral response to stress, in this case appetite inhibition after transfer to a new environment. Moreover, stress responsiveness in terms of confinement-induced changes in plasma cortisol was negatively correlated to aggressive behavior. Fish that exhibited lower cortisol responses to a standardized confinement test were markedly more aggressive when being placed in a dominant social position later in the study. These findings support the view that distinct behavioral-physiological stress coping styles are present in teleost fish, and these coping characteristics influence both social rank and levels of aggression. |
Address |
Biology Department and Neuroscience Group, University of South Dakota, Vermillion, SD 57069, USA. oyvind.overli@bio.uio.no |
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English |
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Edition |
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ISSN |
0018-506X |
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Notes |
PMID:15053939 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4192 |
Permanent link to this record |