Records |
Author |
Cancedda, M. |
Title |
[Social and behavioral organization of horses on the Giara (Sardinia): distribution and aggregation] |
Type |
Journal Article |
Year |
1990 |
Publication |
Bollettino della Societa italiana di biologia sperimentale |
Abbreviated Journal |
Boll Soc Ital Biol Sper |
Volume |
66 |
Issue |
11 |
Pages |
1089-1096 |
Keywords |
Animals; *Animals, Wild/physiology/psychology; Environment; Female; *Horses/physiology/psychology; Italy; Male; Population Density; Sexual Behavior, Animal; *Social Behavior; Social Dominance; Water |
Abstract |
In this paper some considerations on the environment of the 42 Kmq of the volcanic-basaltic Giara tableland are discussed. Conditioning by the environment and its effect on the distribution of a population of 712 horses is illustrated in view of their social and behavioural organization. |
Address |
Istituto di Fisiologia Generale e Speciale, Universita di Sassari |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
Italian |
Summary Language |
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Original Title |
Introduzione all'organizzazione sociale e comportamentale dei cavallini sulla Giara (Sardegna): distribuzione ed aggregazione |
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Series Title |
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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 |
0037-8771 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:2095819 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
673 |
Permanent link to this record |
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Author |
Wiesner, J.; V. Hegel, G. |
Title |
Zur Immobilisation von Wildequiden mit STH 2130 und Tiletamin/Zolazepam |
Type |
Journal Article |
Year |
1990 |
Publication |
Tierärtzliche Praxis |
Abbreviated Journal |
Tierärzl Prax |
Volume |
18 |
Issue |
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Pages |
151-154 |
Keywords |
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Abstract |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
Call Number |
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Serial |
1707 |
Permanent link to this record |
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Author |
Holmstrom, M.; Magnusson, L.E.; Philipsson, J. |
Title |
Variation in conformation of Swedish warmblood horses and conformational characteristics of elite sport horses |
Type |
Journal Article |
Year |
1990 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
Volume |
22 |
Issue |
3 |
Pages |
186-193 |
Keywords |
Age Factors; Analysis of Variance; Animals; *Breeding; Female; Forelimb/anatomy & histology; Hindlimb/anatomy & histology; Horses/*anatomy & histology/physiology; Least-Squares Analysis; Male; Physical Conditioning, Animal; Regression Analysis; Sex Characteristics |
Abstract |
The variation in conformation of 356 Swedish Warmblood horses is described, using a quantitative method of measuring horses. Thirty-three of the horses were elite dressage horses, 28 were elite showjumpers, 100 were riding school horses and 195 were unselected four-year-olds. Most horses had a long body form. The average height at the withers was 163.4 cm. Sixty per cent of the horses had a bench knee conformation, 50 per cent had a toe-in conformation of the forelimbs and 80 per cent had outwardly rotated hind limbs. The majority of these deviations were mild or moderate. Conformation was influenced by sex and age. Mares were smaller and had longer bodies and shorter limbs. The elite dressage horses and showjumpers had larger hock angles and more sloping scapulas than other horses. The showjumpers also had smaller fetlock angles in the front limbs. It is suggested that the larger hock angles among the elite horses may be because hocks with small angles are more prone to injury, and because small hock angles may negatively influence the ability to attain the degree of collection necessary for good performance in advanced classes. |
Address |
Department of Animal Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Skara |
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Language |
English |
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Original Title |
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Series Issue |
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Edition |
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ISSN |
0425-1644 |
ISBN |
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Medium |
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Conference |
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Notes |
PMID:2361507 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3756 |
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Author |
Kirkpatrick, J. F.; Lasley, B. L.; Shideler,S. E. |
Title |
Urinary steroid evaluations to monitor ovarian function in exotic ungulates |
Type |
Journal Article |
Year |
1990 |
Publication |
Zoo Biology |
Abbreviated Journal |
Zoo Biol |
Volume |
9 |
Issue |
5 |
Pages |
341 - 348 |
Keywords |
Perissodactyla – ovulation – corpus luteum |
Abstract |
A direct enzyme immunoassay (EIA) for non-specific urinary progesterone (Po) metabolites, utilizing a non-specific monoclonal antibody against pregnanediol-3-glucuronide, was evaluated for the purpose of assessing luteal function in equids. Urinary pregnanediol-3-glucuronide (PdG) and immunoreactive PdG-like conjugate (iPdG) concentrations, indexed by creatinine, were compared to plasma Po concentrations in non-conceptive ovarian cycles through two ovulations in four mares. High-performance liquid chromatography (HPLC) of urine from lutealphase mares and a pregnant zebra revealed an absence of significant concentrations of PdG and the presence of at least three immunoreactive compounds, all of which were more polar than PdG. The concentration of iPdG in the mare ranged from a nadir of approximately 3 ng/mg Cr at the time of ovulation to nearly 400 ng/mg Cr at the mid-luteal-phase peak and paralleled plasma Po concentrations. This non-radiometric assay for iPdG permits the assessment of ovulation, luteal formation and function, and luteolysis in unprocessed urine samples from domestic mares. Data from a single zebra indicate this approach also will permit simplified and non-invasive longitudinal studies of ovarian function among a wide range of Equidae. |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
Call Number |
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Serial |
1274 |
Permanent link to this record |
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Author |
Chaudhuri, M.; Ginsberg, J.R. |
Title |
Urinary androgen concentrations and social status in two species of free ranging zebra (Equus burchelli and E. grevyi). |
Type |
Journal Article |
Year |
1990 |
Publication |
Journal of Reproduction and Fertility |
Abbreviated Journal |
J Reprod Fert |
Volume |
88 |
Issue |
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Pages |
127-133 |
Keywords |
zebra; testosterone; androgens; territoriality; social behaviour; dominance |
Abstract |
In both species of zebra, breeding males had higher urinary androgen concentrations (ng androgens/mg Cr) than did non-breeding bachelor males (30.0 +/- 5.0 (N = 9) versus 11.4 +/- 2.8, (N = 7) in the plains zebra; 19.0 +/- 2.2 (N = 17) versus 10.7 +/- 1.2 (N = 14) in the Grevy's zebra). In the more stable family structure of the plains zebra (single male non-territorial groups) variations in androgen concentrations could not be ascribed to any measured variable. In the Grevy's zebra, androgen values were significantly lower in samples taken from territorial (breeding) males which had temporarily abandoned their territories (N = 4) and the urinary androgen concentration for a male on his territory was negatively correlated with the time since females last visited the territory. |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
Call Number |
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Serial |
987 |
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Author |
Visalberghi E |
Title |
Tool use in Cebus |
Type |
Journal Article |
Year |
1990 |
Publication |
Folia Primatol. |
Abbreviated Journal |
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Volume |
54 |
Issue |
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Pages |
146 |
Keywords |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3045 |
Permanent link to this record |
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Author |
Boesch C; Boesch H |
Title |
Tool use and tool making in wild chimpanzees |
Type |
Journal Article |
Year |
1990 |
Publication |
Folia Primatol. |
Abbreviated Journal |
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Volume |
54 |
Issue |
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Pages |
86 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2983 |
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Author |
Cassini, M.H.; Kacelnik, A.; Segura, E.T. |
Title |
The tale of the screaming hairy armadillo, the guinea pig and the marginal value theorem |
Type |
Journal Article |
Year |
1990 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
Volume |
39 |
Issue |
6 |
Pages |
1030-1050 |
Keywords |
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Abstract |
Foraging by screaming hairy armadillos, Chaetophractus vellerosus, and guinea pigs, Cavia porcellus, was studied in the laboratory. The main question was whether patch exploitation varies with overall capture rate as predicted by the marginal value theorem (MVT). Armadillos in experiment I and guinea pigs in experiment II experienced a single travel time between depleting patches of two kinds: good and poor. There were two treatments, which differed in the quality of poor patches. MVT predicts that within a treatment, more prey should be taken from good than from poor patches and between treatments, good patches should be exploited in inverse relation to the quality of poor patches and poor patches should be exploited in direct relation to their own quality. In experiment III, guinea pigs experienced three treatments which differed in the travel requirement, while the two patch types remained the same. MVT predicts that within a treatment more prey should be taken from good than from poor patches and that between treatments more prey should be taken from both patch types as travel requirement increases. The qualitative predictions were supported in the three experiments. The quantitative fit was good but there was a bias towards more severe patch exploitation than predicted. The results indicate that in these species patch exploitation depends on overall food availability as predicted by the MVT when overall food availability differs either because of patch type composition or because of differences in travel requirement between patches. |
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no |
Call Number |
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Serial |
2120 |
Permanent link to this record |
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Author |
Cheney, D.L.; Seyfarth, R.M. |
Title |
The representation of social relations by monkeys |
Type |
Journal Article |
Year |
1990 |
Publication |
Cognition |
Abbreviated Journal |
Cognition |
Volume |
37 |
Issue |
1-2 |
Pages |
167-196 |
Keywords |
Animals; Cercopithecus aethiops/*psychology; Concept Formation; *Dominance-Subordination; Female; Macaca fascicularis/*psychology; Male; *Social Behavior; *Social Environment |
Abstract |
Monkeys recognize the social relations that exist among others in their group. They know who associates with whom, for example, and other animals' relative dominance ranks. In addition, monkeys appear to compare types of social relations and make same/different judgments about them. In captivity, longtailed macaques (Macaca fascicularis) trained to recognize the relation between one adult female and her offspring can identify the same relation among other mother-offspring pairs, and distinguish this relation from bonds between individuals who are related in a different way. In the wild, if a vervet monkey (Cercopithecus aethiops) has seen a fight between a member of its own family and a member of Family X, this increases the likelihood that it will act aggressively toward another member of Family X. Vervets act as if they recognize some similarity between their own close associates and the close associates of others. To make such comparisons the monkeys must have some way of representing the properties of social relationships. We discuss the adaptive value of such representations, the information they contain, their structure, and their limitations. |
Address |
Department of Anthropology, University of Pennsylvania, Philadelphia 19104 |
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English |
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Edition |
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ISSN |
0010-0277 |
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Notes |
PMID:2269006 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
702 |
Permanent link to this record |
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Author |
Würbel, H. |
Title |
The relationship between social structure and mating system in donkeys & Mating strategies of male donkeys in a promiscuous mating system"l structure and mating system in donkeys & |
Type |
Manuscript |
Year |
1990 |
Publication |
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Volume |
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Issue |
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Pages |
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Keywords |
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Thesis |
Diploma thesis |
Publisher |
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Place of Publication |
Faculty of Natural Sciences, University of Berne, Switzerland |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
Call Number |
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Serial |
1724 |
Permanent link to this record |