| Records |
| Author |
Drevemo, S.; Fredricson, I.; Hjertén, G.; McMIKEN, D. |
| Title |
Early development of gait asymmetries in trotting Standardbred colts |
Type |
Journal Article |
| Year |
1987 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine. Vet. J. |
| Volume |
19 |
Issue |
3 |
Pages |
189-191 |
| Keywords |
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| Abstract |
Summary Ten trotting Standardbred colts were recorded by high-speed cinematography at the ages of eight, 12 and 18 months. The horses were trotting on a treadmill operating at 4.0 m/secs. Five horses were subjected to a programme of intensified training from eight months of age, whereas the others were not trained and acted as controls. The films were analysed on a semi-automatic film-reading equipment and a number of variables used to demonstrate the gait symmetry were calculated and scaled by computer. Certain differences between left and right diagonal and contralateral pair of limbs, respectively, were noted, suggesting that laterality in horses may be inherited. The most pronounced systematic differences were found in 18-month old horses in the trained group. The results show the importance of careful gait examination and comprehensive coordination training at an early age. |
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American Medical Association (AMA) |
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| ISSN |
0425-1644 |
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| Notes |
https://doi.org/10.1111/j.2042-3306.1987.tb01373.x |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6702 |
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| Author |
Harrington, F.H. |
| Title |
Aggressive howling in wolves |
Type |
Journal Article |
| Year |
1987 |
Publication |
Anim Behav |
Abbreviated Journal |
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| Volume |
35 |
Issue |
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no |
| Call Number |
Equine Behaviour @ team @ Harrington1987 |
Serial |
6457 |
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| Author |
Rutberg, A.T. |
| Title |
Horse Fly Harassment and the Social Behavior of Feral Ponies |
Type |
Journal Article |
| Year |
1987 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
| Volume |
75 |
Issue |
2 |
Pages |
145-154 |
| Keywords |
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| Abstract |
Abstract Horse flies (Tabanidae) on and around feral ponies in harem groups were counted at Assateague Island National Seashore, Maryland, U.S.A., between June and August 1985. Harem stallions attracted the most flies; adult mares showed intermediate fly numbers, while few flies landed on foals under any circumstances. The use of thermal and chemical cues by flies selecting a host may have helped create this disparity. When flies were abundant, ponies reduced spacing within the group. Ponies in larger groups suffered from fewer flies than ponies in smaller groups. There was, however, no evidence that ponies merged into larger groups in response to fly harassment, suggesting that biting flies play little role in structuring pony social organization. |
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Wiley/Blackwell (10.1111) |
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| ISSN |
0179-1613 |
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| Notes |
doi: 10.1111/j.1439-0310.1987.tb00648.x |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6417 |
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| Author |
Tizard I. |
| Title |
An introduction to veterinary immunology. |
Type |
Book Whole |
| Year |
1987 |
Publication |
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Pages |
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| Publisher |
WB Saunders Co. |
Place of Publication |
Philadelphia |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6000 |
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| Author |
Siegel, H.S. |
| Title |
Effects of behavioural and physical stressors on immune responses. |
Type |
Book Whole |
| Year |
1987 |
Publication |
Biology of Stress in Farm Animals |
Abbreviated Journal |
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| Publisher |
Martinus Nijhoff |
Place of Publication |
London |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5994 |
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| Author |
Tomasello, M.; Davis-Dasilva, M.; Camak, L.; Bard, K. |
| Title |
Observational learning of tool-use by young chimpanzees |
Type |
Journal Article |
| Year |
1987 |
Publication |
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Abbreviated Journal |
Human Evolution |
| Volume |
2 |
Issue |
2 |
Pages |
175-183 |
| Keywords |
Chimpanzees; Observational Learning; Tool-Use |
| Abstract |
In the current study two groups of young chimpanzees (4–6 and 8–9 years old) were given a T-bar and a food item that could only be reached by using the T-bar. Experimental subjects were given the opportunity to observe an adult using the stick as a tool to obtain the food; control subjects were exposed to the adult but were given no demonstration. Subjects in the older group did not learn to use the tool. Subjects in the younger group who were exposed to the demonstrator learned to use the stick as a tool much more readily than those who were not. None of the subjects demonstrated an ability to imitatively copy the demonstrator's precise behavioral strategies. More than simple stimulus enhancement was involved, however, since both groups manipulated the T-bar, but only experimental subjects used it in its function as a tool. Our findings complement naturalistic observations in suggesting that chimpanzee tool-use is in some sense «culturally transmitted» — though perhaps not in the same sense as social-conventional behaviors for which precise copying of conspecifics is crucial. |
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| Publisher |
Kluwer Academic Publishers |
Place of Publication |
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| Language |
English |
Summary Language |
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| ISSN |
0393-9375 |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5915 |
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| Author |
Güntürkün, O.; Kesch, S. |
| Title |
Visual lateralization during feeding in pigeons |
Type |
Journal Article |
| Year |
1987 |
Publication |
Behavioral Neuroscience |
Abbreviated Journal |
Behav. Neurosci. |
| Volume |
101 |
Issue |
3 |
Pages |
433-435 |
| Keywords |
use of right vs left eye, amount & accuracy of pecking in food discrimination task, homing pigeons, implications for lateralization of cerebral function |
| Abstract |
In a quasi-natural feeding situation, adult pigeons had to detect and consume 30 food grains out of about 1,000 pebbles of similar shape, size, and color within 30 s under monocular conditions. With the right eye seeing, the animals achieved a significantly higher discrimination accuracy and, consequently, a significantly higher proportion of grains grasped than with the left eye seeing. This result supports previous demonstrations of a left-hemisphere dominance for visually guided behavior in birds. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
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| Publisher |
US: American Psychological Association |
Place of Publication |
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1939-0084(Electronic);0735-7044(Print) |
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no |
| Call Number |
Equine Behaviour @ team @ 1987-30501-001 |
Serial |
5588 |
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| Author |
Feh, C. |
| Title |
Etude du développement des relations sociales chez des étalons (Equus caballus) de race camargue et de leur contribution à l'organisation sociale du groupe |
Type |
Manuscript |
| Year |
1987 |
Publication |
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| Abstract |
Diplôme de recherche universitaire: neurosciences comportementales: Université d'Aix-Marseille II. Faculté des sciences de Luminy Marseille (FRA)* 117p |
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Thesis |
Master's thesis |
| Publisher |
Université d'Aix-Marseille |
Place of Publication |
Marseille |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5485 |
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| Author |
Gouzoules, S.; Gouzoules, H. |
| Title |
Kinship |
Type |
Book Chapter |
| Year |
1987 |
Publication |
Primate societies |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
299-305 |
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| Publisher |
University of Chicago Press |
Place of Publication |
Chicago |
Editor |
Smuts, B. B.; Cheney, D. L.; Seyfarth, R. M.; Wrangham, R. W.; Struhsaker T. T |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5430 |
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| Author |
Lisa Nash, H.; Song, G.K.; Price, E.O. |
| Title |
Head partitions facilitate feeding by subordinate horses in the presence of dominant pen-mates |
Type |
Journal Article |
| Year |
1987 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
19 |
Issue |
1-2 |
Pages |
179-182 |
| Keywords |
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| Abstract |
The purpose of the following study was to determine if head partitions would facilitate feeding by subordinate horses in the presence of dominant pen-mates. Six pairs of mares, each with established dominant-subordinate relationships, were allowed to compete for feed in a 112-cm trough following 24 h of deprivation. Time spent feeding by each mare in each pair was recorded with a wire-mesh partition, a solid plywood partition or no partition dividing the trough. Differences in feeding times between dominant and subordinate mares were greatest in the absence of a partition and least (P<0.05) with the wire barrier in place. Differences in feeding times with the solid plywood barrier were not significantly different from either of the other treatment conditions. It was concluded that head partitions on a trough facilitate feeding by subordinate horses in the presence of dominant pen-mates and thus provide a more equitable distribution of food resources. |
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Edition |
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| ISSN |
0168-1591 |
ISBN |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5411 |
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