Records |
Author |
van Niekerk, H.P. |
Title |
Ethological studies within the man-horse relationship |
Type |
Journal Article |
Year |
1980 |
Publication |
Journal of the South African Veterinary Association |
Abbreviated Journal |
J S Afr Vet Assoc |
Volume |
51 |
Issue |
4 |
Pages |
237-238 |
Keywords |
Animals; Behavior, Animal; Hearing; Horses/*physiology; Humans; Smell; Taste; Touch; Vision |
Abstract |
Certain aspects of ethology and the horse's senses are discussed to bring about a better understanding between man and horse. Furthermore the behaviour of horses with respect to housing, feeding, breeding, veterinary treatment and work are considered. |
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English |
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Edition |
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ISSN |
1019-9128 |
ISBN |
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Notes |
PMID:7241494 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
1960 |
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Author |
Hintz, R.L. |
Title |
Genetics of performance in the horse |
Type |
Journal Article |
Year |
1980 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
51 |
Issue |
3 |
Pages |
582-594 |
Keywords |
Animals; Exertion; Horses/*genetics/physiology; Sports |
Abstract |
Criteria used to measure performance, environmental factors that influence performance and estimates of heritability are needed to estimate genetic differences. Published heritability estimates of various measures of performance in the horse are summarized. The average heritability estimates of pulling ability and cutting ability are .25 and .04, respectively. Heritability estimates are .18, .19 and .17 for log of earnings from jumping, 3-day event and dressage performance, respectively. Heritability estimates of performance rates, log of earnings, earnings, handicap weight, best handicap weight, time and best time for the Thoroughbred are .55, .49, .09, .49, .33, .15 and .23, respectively. Heritability estimates of log of earnings, earnings, time and best time for the trotter are .41, .20, .32, and .25, respectively. The heritability estimate of best time for the pacer is .23. The effectiveness of selection will depend on which performance trait is to be improved. |
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English |
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Edition |
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ISSN |
0021-8812 |
ISBN |
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Notes |
PMID:7440446 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3758 |
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Author |
Mader, D.R.; Price, E.O. |
Title |
Discrimination learning in horses: effects of breed, age and social dominance |
Type |
Journal Article |
Year |
1980 |
Publication |
Journal of animal science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
50 |
Issue |
5 |
Pages |
962-965 |
Keywords |
Aging; Animals; *Discrimination Learning; Female; Horses/*physiology; *Social Dominance |
Abstract |
The discrimination learning ability of Quarter Horses and Thoroughbreds was compared by means of visual cues in a three-choice test with food as a reward. Quarter Horses learned significantly faster than Thoroughbreds, and learning progressed more rapidly for both breeds in a second discrimination task. Significant negative correlations were observed between age and rate of learning. Quarter Horses tended to be less reactive than Thoroughbreds, but individual emotional reactivity ratings and learning scores were not correlated. No correlation was found between social dominance and learning scores. Learning studies with horses may provide a better understanding of the behavioral traits that influence trainability in this species. |
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0021-8812 |
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Notes |
PMID:7390949 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
679 |
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Author |
Rubin, L.; Oppegard, C.; Hindz, H.F. |
Title |
The effect of varying the temporal distribution of conditioning trials on equine learning behavior |
Type |
Journal Article |
Year |
1980 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
50 |
Issue |
6 |
Pages |
1184-1187 |
Keywords |
Animals; Conditioning (Psychology); *Horses; *Learning |
Abstract |
Two experiments were conducted to study the effect of varying the temporal distrbution of conditioning sessions on equine learning behavior. In the first experiment, 15 ponies were trained to clear a small hurdle in response to a buzzer in order to avoid a mild electric shock. Three treatments were used. One group received 10 learning trials daily, seven times a week; one group was trained in the same fashion two times a week and one group was trained once a week. The animals conditioned only once a week achieved a high level of performance in significantly fewer sessions than the ones conditioned seven times a week, although elapsed time from start of training to completion was two to three times greater for the former group. The twice-a-week group learned at an intermediate rate. In the second experiment, the ponies were rearranged into three new groups. They were taught to move backward a specific distance in response to a visual cue in order to avoid an electric shock. Again, one group was trained seven times a week, one group was trained two times and one group was trained once a week. As in the first experiment, the animals trained once a week achieved the learning criteria in significantly fewer sessions than those trained seven times a week, but, as in trial 1, elapsed time from start to finish was greater for them. The two times-a-week group learned at a rate in-between the rates of the other two groups. |
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0021-8812 |
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Notes |
PMID:7400060 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3558 |
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Author |
Haag, E.L.; Rudman, R.; Houpt, K.A. |
Title |
Avoidance, maze learning and social dominance in ponies |
Type |
Journal Article |
Year |
1980 |
Publication |
J. Anim. Sci. |
Abbreviated Journal |
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Volume |
50 |
Issue |
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Pages |
329-335 |
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Notes |
Cited By (since 1996): 16; Export Date: 24 October 2008 |
Approved |
no |
Call Number |
Admin @ knut @ |
Serial |
4593 |
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Author |
Parry, B.W.; Gay, C.C.; McCarthy, M.A. |
Title |
Influence of head height on arterial blood pressure in standing horses |
Type |
Journal Article |
Year |
1980 |
Publication |
American Journal of Veterinary Research |
Abbreviated Journal |
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Volume |
41 |
Issue |
10 |
Pages |
1626-1631 |
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Cited By (since 1996): 4; Export Date: 21 October 2008 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4539 |
Permanent link to this record |
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Author |
Noë, R.; de Waal, F.B.; van Hooff, J.A. |
Title |
Types of dominance in a chimpanzee colony |
Type |
Journal Article |
Year |
1980 |
Publication |
Folia primatologica; international journal of primatology |
Abbreviated Journal |
Folia Primatol (Basel) |
Volume |
34 |
Issue |
1-2 |
Pages |
90-110 |
Keywords |
Agonistic Behavior; Animals; Animals, Zoo; *Behavior, Animal; Competitive Behavior; Factor Analysis, Statistical; Female; Hierarchy, Social; Male; *Pan troglodytes; *Social Dominance |
Abstract |
This study examines to what extent the concept of dominance can be used to describe the social structure of a group of semi-free-living chimpanzees. 15 behavioural variables, based on agonistic, competitive and affinitive behaviour patterns, have been compared with respect to the interindividual directions in which they occurred. In this analysis use was made of indices that reflect the position an individual occupies in the relationship structure. These indices were calculated per individual for all variables and subjected to factor analysis and cluster analysis. As a result, 13 of the variables could be grouped in three categories which have been labelled: (1) agonistic dominance; (2) bluff dominance, and (3) competitive dominance. Whereas the top positions in the hierarchies based on the first two closely related types of dominance were occupied by the adult males, the hierarchy based on the third type was headed by several adult females. |
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ISSN |
0015-5713 |
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Notes |
PMID:7439873 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
212 |
Permanent link to this record |
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Author |
Salter Re, H.J. |
Title |
Range relationships of feral horses with wild ungulates and cattle in western Alberta |
Type |
Journal Article |
Year |
1980 |
Publication |
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Abbreviated Journal |
J Range Mgmt |
Volume |
33 |
Issue |
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Pages |
266-271 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
Call Number |
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Serial |
1552 |
Permanent link to this record |
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Author |
De Moraes Ferrari,E. A.; Todorov, J. C. |
Title |
Concurrent avoidance of shocks by pigeons pecking a key |
Type |
Journal Article |
Year |
1980 |
Publication |
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Abbreviated Journal |
J Exp Anal Behav. |
Volume |
30 |
Issue |
3 |
Pages |
329-333 |
Keywords |
concurrent schedules, unsignaled avoidance, negative reinforcement, key pecking, pigeon |
Abstract |
Three pigeons were studied on concurrent, unsignaled, avoidance schedules in a two-key procedure. Shock-shock intervals were two seconds in both schedules. The response-shock interval on one key was always 22 seconds, while the response-shock interval associated with the other key was varied from 7 to 52 seconds in different experimental conditions. Response rates on the key associated with the varied schedule tended to decrease when the response-shock interval length was increased. Responding on the key associated with the constant schedule was not systematically affected. |
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no |
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Equine Behaviour @ team @ |
Serial |
3586 |
Permanent link to this record |
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Author |
Bennett Dk, |
Title |
Stripes do not a zebra make, Part I: A cladistic analysis of Equus |
Type |
Journal Article |
Year |
1980 |
Publication |
Systematic Zoology |
Abbreviated Journal |
Syst Zool |
Volume |
29 |
Issue |
2 |
Pages |
272-287 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
Call Number |
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Serial |
932 |
Permanent link to this record |