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| Author |
Fleck C.; Eifler D. |
| Title |
Deformation behaviour and damage accumulation of cortical bone specimens from the equine tibia under cyclic loading |
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2003 |
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Journal of Biomechanics |
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36 |
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179-189 |
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2008 |
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| Author |
Milgram, N.W. |
| Title |
Cognitive Experience and Its Effect on Age-Dependent Cognitive Decline in Beagle Dogs |
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Journal Article |
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2003 |
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Neurochemical Research |
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28 |
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11 |
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1677-1682 |
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Test-sophisticated beagle dogs show marked age sensitivity in a size discrimination learning task, with old and senior dogs performing significantly more poorly than young dogs. By contrast, age differences in learning were not seen in dogs naive with respect to neuropsychological test experience. These results indicate that old animals benefit less from prior cognitive experience than young animals, which is an example of an age-dependent loss in plasticity. This finding also suggests that behaviorally experienced animals are a more useful model of human cognitive aging than behaviorally naive animals. We also looked at the effect of a program of behavioral enrichment in aged dogs. One year of enrichment did not lead to significant differences, but after 2 years the behaviorally enriched group performed significantly better than the control group. The effect after 2 years indicates that a prolonged program of cognitive enrichment can serve as an effective intervention in aged dogs. These findings demonstrate that cognitive abilities in aged animals can be modified by providing behavioral experience, indicating that cognitive abilities remain moderately plastic, even in very old animals. |
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Equine Behaviour @ team @ |
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3151 |
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Sluyter F.; Arseneault L.; Moffitt T.E.; Veenema A.H.; de Boer S.; Koolhaas J.M. |
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Toward an Animal Model for Antisocial Behavior: Parallels Between Mice and Humans: Aggression |
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Journal Article |
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2003 |
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Behavior Genetics |
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33 |
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563-574 |
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3497 |
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| Author |
Bekoff M. |
| Title |
Minding Animals, Minding Earth: Old Brains, New Bottlenecks |
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2003 |
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Zygon |
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38 |
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911-941 |
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3498 |
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Bekoff M. |
| Title |
Consciousness and Self in Animals: Some Reflections |
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2003 |
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Zygon |
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38 |
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229-245 |
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3500 |
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| Author |
Tomasello M.; Call J.; Hare B. |
| Title |
Chimpanzees understand psychological states – the question is which ones and to what extent |
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2003 |
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Trends in Cognitive Sciences |
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Trends. Cognit. Sci. |
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7 |
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153-156 |
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3501 |
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Buechner-Maxwell, V.A.; Elvinger, F.; Thatcher, C.D.; Murray, M.J.; White, N.A.; Rooney, D.K. |
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Physiological Response of Normal Adult Horses to a Low-Residue Liquid Diet |
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Journal Article |
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2003 |
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Journal of Equine Veterinary Science |
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23 |
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7 |
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310-317 |
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Abstract The anorexic or dysphagic adult horse often requires nutritional support. Providing nutrients by the enteral route is the safest and most economic choice, but the dietary options available for use in horses are somewhat limited. The objective of this study was to compare the physiologic response of normal horses with a low-residue liquid or normal diet over a 10-day feeding period. Two groups of 6 normal adult horses were maintained on 1 of 2 diets for a 10-day period. Diets were formulated to meet the caloric needs of a horse maintained in a stall. The control group was fed 70% timothy hay and 30% textured concentrate for the test period, and the experimental group received the low-residue liquid diet, similar to liquid nutritional formulas designed for human use. Clinical parameters, body weight, packed cell volume, total plasma solids, blood glucose, and serum electrolytes were recorded daily for each horse during the dietary trial period. On days 1, 5, and 10 of the study, a complete blood count, serum biochemical profile, and urinalysis were performed. Horses' serum total bilirubin concentration and pattern of weight loss differed between groups. All other physical parameters, blood chemistry, complete blood count, and urinalysis results remained within the normal reference interval for the horses regardless of diet, although some statistical differences were observed. Horses returned to pasture and free-choice grass diet without complications at the end of the dietary trial period. These results demonstrate that few differences of biologic significance were observed between horses being fed low-residue diet and horses receiving a normal diet of hay and grain over a 10-day period. (Equine Vet J 2003;23:310-317) |
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Equine Behaviour @ team @ |
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4229 |
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| Author |
McLean, A.N. |
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Book Whole |
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2003 |
Publication |
The Truth About Horses |
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48-49 |
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Cited By (since 1996): 13; Export Date: 21 October 2008 |
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Equine Behaviour @ team @ |
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4531 |
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| Author |
Waring, G.H. |
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Book Whole |
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2003 |
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Horse behavior. 2nd ed |
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442 pp |
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Cited By (since 1996): 1; Export Date: 21 October 2008 |
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Equine Behaviour @ team @ |
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4548 |
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| Author |
Clotfelter, E.D.; Paolino, A.D. |
| Title |
Bystanders to contests between conspecifics are primed for increased aggression in male fighting fish |
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Journal Article |
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2003 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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66 |
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2 |
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343-347 |
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We performed two experiments in which we allowed a male fighting fish, Betta splendens, designated a bystander, to observe aggressive contests between pairs of male conspecifics. Another male (naive male) observed an empty tank or two nonaggressive males, depending on the experiment. Immediately after these observation periods, we allowed the bystander and naive male to interact in a neutral area. In both experiments, bystander males were dominant over naive males in a significant number of the encounters. Bystander males performed significantly more aggressive behaviours (displays, chases and bites) than did naive males. Differences in dominance were not due to chance differences in body size. These findings demonstrate that exposure to aggression between conspecifics increases aggressive motivation in bystander male fighting fish. We discuss briefly the implications of such social experience on the formation of dominance hierarchies. Copyright 2003 Published by Elsevier Ltd on behalf of The Association for the Study of Animal Behaviour. |
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refbase @ user @ |
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338 |
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