Records |
Author |
Hedberg, Y.; Dalin, A.-M.; Ohagen, P.; Holm, K.R.; Kindahl, H. |
Title |
Effect of oestrous-cycle stage on the response of mares in a novel object test and isolation test |
Type |
Journal Article |
Year |
2005 |
Publication |
Reproduction in Domestic Animals = Zuchthygiene |
Abbreviated Journal |
Reprod Domest Anim |
Volume |
40 |
Issue |
5 |
Pages |
480-488 |
Keywords |
Animals; Behavior, Animal/*physiology; Cross-Over Studies; Diestrus/*physiology; Estrus/*physiology; Female; Heart Rate/*physiology; Horses/*physiology; Questionnaires |
Abstract |
In various species, sex, hormonal treatments and oestrous-cycle stage have been shown to affect the animal's response in behavioural tests. Few such studies have been performed in the horse. The main aim of the present study was to investigate whether oestrous-cycle stage affects mares' response to a novel object test and isolation test and, in part, to study whether mares, assumed to suffer from oestrous-related behavioural problems, respond differently in these tests when compared with controls. Twelve mares were tested twice, in oestrus and dioestrus, in a crossover design. Seven behavioural and two heart rate variables were measured for the novel object test and two heart rate variables for the isolation test. Oestrous-cycle stage and whether a mare was classified as a 'problem' mare did not affect the mare's response. However, test order, i.e. the cycle stage a mare was tested in first, affected its reaction. This effect could partly be explained by significant differences between test occasions 1 and 2 in three behavioural variables and one heart rate variable (p < 0.05) in the novel object test. The mares explored the novel object more and had a higher mean heart rate in the first test. Exploring the novel object more could largely be attributed to those mares tested in dioestrus first, perhaps indicating that the mares in oestrus were less receptive to the novel object. The reason for the differences between test occasions could be an effect of learning or habituation. |
Address |
Division of Comparative Reproduction, Obstetrics and Udder Health, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden. ylva.hedberg@kv.slu.se |
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English |
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0936-6768 |
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PMID:16149956 |
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Equine Behaviour @ team @ |
Serial |
5170 |
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Author |
Hau, J.; Andersson, E.; Carlsson, H.-E. |
Title |
Development and validation of a sensitive ELISA for quantification of secretory IgA in rat saliva and faeces |
Type |
Journal Article |
Year |
2001 |
Publication |
Laboratory Animals |
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Volume |
35 |
Issue |
4 |
Pages |
301-306 |
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Abstract |
Non-invasive measures of immunological markers are an attractive means of stress assessment in laboratory animals. Salivary IgA has been used successfully as a stress marker in the human, and several reports indicate the potential of secretory IgA as a non-invasive measure of stress in animals. The present paper describes the development of an ELISA using commercially available components for the quantification of rat IgA and validation of this assay for the quantification of rat secretory IgA in saliva and faeces. The concentration of IgA in rat saliva varied significantly between duplicate samples obtained from individual rats, and the viscosity and small total volume of rat saliva gave unsatisfactory results for IgA. Faecal IgA was present in high concentrations, and duplicate samples varied by only 2-3%. However, faecal IgA seemed less stable than IgA in other biological compartments, and this finding must be taken into consideration when using quantitative measurements of IgA as a marker of mucous humoral immune status. |
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10.1258/0023677011911822 |
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Equine Behaviour @ team @ |
Serial |
5851 |
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Author |
Harcourt, A. H. |
Title |
Coalitions and alliances: are primates more complex than non-primates? |
Type |
Book Chapter |
Year |
1992 |
Publication |
Coalitions and alliances in humans and other animals |
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Oxford University Press |
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Oxford |
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Harcourt, A.H.; de Waal, F.B.M. |
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0-19-854273-9 |
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Equine Behaviour @ team @ |
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5440 |
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Author |
HAFEZ, E.S.E.; WILLIAMS, M.; WIERZBOWSKI, S. |
Title |
The Behaviour of Horses. |
Type |
Book Whole |
Year |
1962 |
Publication |
In: Hafez. ESE: The Behaviour of Domestic Animals London |
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370-396 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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1156 |
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Author |
Fragaszy, D.; Visalberghi, E. |
Title |
Primates “primacy” reconsidered |
Type |
Book Chapter |
Year |
1996 |
Publication |
Social learning in animals: the roots of culture |
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Pages |
65-84 |
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Academic Press, Inc. |
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Heyes, C. ; Galef, B.G. |
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Social learning in animals: the roots of culture |
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978-0122739651 |
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Equine Behaviour @ team @ home |
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2175 |
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Author |
Esch, L.; Wöhr, C.; Erhard, M.; Krueger, K. |
Title |
Horses� (Equus Caballus) Laterality, Stress Hormones, and Task Related Behavior in Innovative Problem-Solving |
Type |
Journal Article |
Year |
2019 |
Publication |
Animals |
Abbreviated Journal |
Animals |
Volume |
9 |
Issue |
5 |
Pages |
265 |
Keywords |
innovative behavior; brain lateralization; glucocorticoid metabolites; behavioral traits; equine cognition |
Abstract |
Domesticated horses are constantly confronted with novel tasks. A recent study on anecdotal data indicates that some are innovative in dealing with such tasks. However, innovative behavior in horses has not previously been investigated under experimental conditions. In this study, we investigated whether 16 horses found an innovative solution when confronted with a novel feeder. Moreover, we investigated whether innovative behavior in horses may be affected by individual aspects such as: age, sex, size, motor and sensory laterality, fecal stress hormone concentrations (GCMs), and task-related behavior. Our study revealed evidence for 25% of the horses being capable of innovative problem solving for operating a novel feeder. Innovative horses of the present study were active, tenacious, and may be considered to have a higher inhibitory control, which was revealed by their task related behavior. Furthermore, they appeared to be emotional, reflected by high baseline GCM concentrations and a left sensory and motor laterality. These findings may contribute to the understanding of horses� cognitive capacities to deal with their environment and calls for enriched environments in sports and leisure horse management. |
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Equine Behaviour @ team @ Esch2019 |
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6570 |
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Author |
Epstein H, |
Title |
Wild horses – Recent and extinct |
Type |
Book Chapter |
Year |
1971 |
Publication |
In: The origin of the domestic animals of Africa II |
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401-417 |
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from Professor Hans Klingels Equine Reference List |
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1071 |
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Author |
Epstein H, |
Title |
Ass, mule and onager |
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Book Chapter |
Year |
1984 |
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In Manson: Evolution of domesticatd animals. |
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174-184 |
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from Professor Hans Klingels Equine Reference List |
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1072 |
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Author |
Ehardt, C.L.; Bernstein, I.S. |
Title |
Conflict intervention behaviour by adult male macaques: structural and functional aspects |
Type |
Book Chapter |
Year |
1992 |
Publication |
Coalitions and Alliances in Humans and Other Animals |
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83-111 |
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Oxford University Press |
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Oxford |
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Harcourt, A.H.; de Waal, F.B.M. |
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Equine Behaviour @ team @ |
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4926 |
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Author |
Dyer, F. C. |
Title |
Individual cognition and group movement: insights from social insects. |
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Book Chapter |
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2000 |
Publication |
Group Movement in Social Primates and Other Animals: Patterns, Processes, and Cognitive Implications. |
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University of Chicago Press |
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Chicago |
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Garber, P.;Boinski, S. |
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Equine Behaviour @ team @ |
Serial |
4425 |
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