| Records |
| Author |
Krueger, K.; Krueger, K. |
| Title |
Trainingslehre für Dressurpferde [Training the Dressage Horse] |
Type |
Book Whole |
| Year |
2010 |
Publication |
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| Publisher |
Xenophon Verlag |
Place of Publication |
Wald |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6007 |
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| Author |
Krueger, K. (ed) |
| Title |
Proceedings of the 2. International Equine Science Meeting |
Type |
Book Whole |
| Year |
2012 |
Publication |
IESM 2012 |
Abbreviated Journal |
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| Publisher |
Xenophon Publishing |
Place of Publication |
Wald |
Editor |
Krueger, K. |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6008 |
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| Author |
Krueger, K.; Marr, I.; Farmer, K. |
| Title |
Equine Cognition |
Type |
Book Chapter |
| Year |
2017 |
Publication |
Encyclopedia of Animal Cognition and Behavior |
Abbreviated Journal |
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Issue |
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Pages |
1-11 |
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| Publisher |
Springer International Publishing |
Place of Publication |
Cham |
Editor |
Vonk, J.; Shackelford, T. |
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ISBN |
978-3-319-47829-6 |
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no |
| Call Number |
Equine Behaviour @ team @ Krueger2017 |
Serial |
6181 |
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| Author |
Benz, B.; Benitz, B.; Krueger, K.; Winter, D. |
| Title |
Weniger Einstreu bei gleichem Komfort |
Type |
Journal Article |
| Year |
2013 |
Publication |
Pferdezucht und Haltung |
Abbreviated Journal |
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| Volume |
1 |
Issue |
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Pages |
66-71 |
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| Publisher |
AVA-Verlag-Allgäu GmbH |
Place of Publication |
Kempten |
Editor |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5654 |
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| Author |
Wolfrum, V.; Krueger, K. |
| Title |
Pferdegestützte Therapie für Flüchtlingskinder |
Type |
Journal Article |
| Year |
2017 |
Publication |
mensch & pferd international |
Abbreviated Journal |
mup |
| Volume |
2 |
Issue |
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Pages |
65-68 |
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| Abstract |
Das Projekt    Viele Flüchtlinge kommen aus Kriegsgebieten zu uns nach Deutschland in der Hoffnung, hier ein neues Leben in Frieden beginnen zu können. Ein Großteil von ihnen hat Schreckliches erlebt und mit diesen Erinnerungen zu kämpfen. Auch ist es nicht einfach, in einem fremden Land mit einer fremden Kultur Fuß zu fassen, sich zu integrieren und neue Freundschaften zu schließen. |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6179 |
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| Author |
Krueger, K.; Hollenhorst, H.; Schuetz, A.; Weil, S. |
| Title |
Social learning and innovative learning in horses. |
Type |
Conference Article |
| Year |
2015 |
Publication |
Proceedings of the 3. International Equine Science Meeting |
Abbreviated Journal |
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| Volume |
3 |
Issue |
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Pages |
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| Address |
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Thesis |
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| Publisher |
Xenophon Publishing |
Place of Publication |
Wald |
Editor |
K. Krueger |
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Summary Language |
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Original Title |
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ISBN |
978-3-95625-000-2 |
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no |
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Equine Behaviour @ team @ |
Serial |
5956 |
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| Author |
Schanz, L.; Krueger, K.; Hintze, S. |
| Title |
Sex and Age Don't Matter, but Breed Type Does--Factors Influencing Eye Wrinkle Expression in Horses |
Type |
Journal Article |
| Year |
2019 |
Publication |
Frontiers in Veterinary Science |
Abbreviated Journal |
Front. Vet. Sci. |
| Volume |
6 |
Issue |
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Pages |
154 |
| Keywords |
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| Abstract |
Identifying valid indicators to assess animals' emotional states is a critical objective of animal welfare science. In horses, eye wrinkles above the eyeball have been shown to be affected by pain and other emotional states. From other species we know that individual characteristics, e.g. age in humans, affect facial wrinkles, but it has not yet been investigated whether eye wrinkle expression in horses is systematically affected by such characteristics. Therefore, the aim of this study was to assess how age, sex, breed type, body condition and coat colour affect the expression and/or the assessment of eye wrinkles in horses. To this end, we adapted the eye wrinkle assessment scale from Hintze et al. (2016) and assessed eye wrinkle expression in pictures taken from the left and the right eye of 181 horses in a presumably neutral situation, using five outcome measures: a qualitative first impression reflecting how worried the horse is perceived by humans, the extent to which the brow is raised, the number of wrinkles, their markedness and the angle between a line through both corners of the eye and the topmost wrinkle. All measures could be assessed highly reliable with respect to intra- and inter-observer agreement. Breed type affected the width of the angle (F2, 114 = 8.20, p < 0.001), with thoroughbreds having the narrowest angle (M = 23.80, SD = 1.60), followed by warmbloods (M = 28.00, SD = 0.60), and coldbloods (M = 31.00, SD = 0.90). None of the other characteristics affected any of the outcome measures, and eye wrinkle expression did not differ between the left and the right eye area (all p-values > 0.05). In conclusion, horses' eye wrinkle expression and its assessment in neutral situations was not systematically affected by the investigated characteristics, except for 'breed type', which accounted for some variation in 'angle'; how much eye wrinkle expression is affected by emotion or perhaps mood needs further investigation and validation. |
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2297-1769 |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
6578 |
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| Author |
Krueger, K.; Marr, I.; Dobler, A.; Palme, R. |
| Title |
Preservation of fecal glucocorticoid metabolites and immunoglobulin A through silica gel drying for field studies in horses |
Type |
Journal Article |
| Year |
2019 |
Publication |
Conservation Physiology |
Abbreviated Journal |
conphys |
| Volume |
7 |
Issue |
1 |
Pages |
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| Keywords |
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| Abstract |
Non-invasive methods enable stress evaluation through measuring fecal glucocorticoid metabolites (FGMs), and immunoglobulin A (IgA) in the feces avoiding stressful blood drawing or stressful restraining of animals in the field. However, FGMs and IgA are mostly analysed in freshly frozen samples, which is difficult when fresh samples cannot be frozen immediately or frozen samples cannot be stored or transported. Good results were also derived from air-dried fecal samples, which are hampered by unstable air humidity in the field. These difficulties may be overcome, when drying of samples could be induced with colorless silica gel (SiO2) granules in a secure set-up, such as an air tight tube. We determined the speed of drying 1.5 g of a fresh fecal sample from six horses on air and on silica gel. Furthermore, FGMs and IgA were analysed in differently stored subsamples from 12 horses: in frozen fecal samples, in air- or silica gel-dried samples stored for 1 day and for 7 days, and in wet fecal samples kept in a tube at room temperature for 7 days. FGM levels remained stable in feces dried on air or on silica gel for 7 days, whereas IgA quantities showed a significant loss. Under field conditions, when freezing or transporting the frozen samples is not possible and humidity hampers air drying, drying samples on silica gel in air tight tubes appears to be very helpful and reliable for analysing FGMs. |
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2051-1434 |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
6594 |
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| Author |
Marr, I.; Preisler, V.; Farmer, K.; Stefanski, V.; Krueger, K. |
| Title |
Non-invasive stress evaluation in domestic horses (Equus caballus): impact of housing conditions on sensory laterality and immunoglobulin A |
Type |
Journal Article |
| Year |
2020 |
Publication |
Royal Society Open Science |
Abbreviated Journal |
Royal Society Open Science |
| Volume |
7 |
Issue |
2 |
Pages |
191994 |
| Keywords |
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| Abstract |
The study aimed to evaluate sensory laterality and concentration of faecal immunoglobulin A (IgA) as non-invasive measures of stress in horses by comparing them with the already established measures of motor laterality and faecal glucocorticoid metabolites (FGMs). Eleven three-year-old horses were exposed to known stressful situations (change of housing, initial training) to assess the two new parameters. Sensory laterality initially shifted significantly to the left and faecal FGMs were significantly increased on the change from group to individual housing and remained high through initial training. Motor laterality shifted significantly to the left after one week of individual stabling. Faecal IgA remained unchanged throughout the experiment. We therefore suggest that sensory laterality may be helpful in assessing acute stress in horses, especially on an individual level, as it proved to be an objective behavioural parameter that is easy to observe. Comparably, motor laterality may be helpful in assessing long-lasting stress. The results indicate that stress changes sensory laterality in horses, but further research is needed on a larger sample to evaluate elevated chronic stress, as it was not clear whether the horses of the present study experienced compromised welfare, which it has been proposed may affect faecal IgA. |
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Royal Society |
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| Notes |
doi: 10.1098/rsos.191994 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6608 |
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| Author |
Wolter, R.; Stefanski, V.; Krueger, K. |
| Title |
Parameters for the Analysis of Social Bonds in Horses |
Type |
Journal Article |
| Year |
2018 |
Publication |
Animals |
Abbreviated Journal |
Animals |
| Volume |
8 |
Issue |
11 |
Pages |
191 |
| Keywords |
feral horses; mutual grooming; social bonds; social bond analysis; spatial proximity |
| Abstract |
Social bond analysis is of major importance for the evaluation of social relationships in group housed horses. However, in equine behaviour literature, studies on social bond analysis are inconsistent. Mutual grooming (horses standing side by side and gently nipping, nuzzling, or rubbing each other), affiliative approaches (horses approaching each other and staying within one body length), and measurements of spatial proximity (horses standing with body contact or within two horse-lengths) are commonly used. In the present study, we assessed which of the three parameters is most suitable for social bond analysis in horses, and whether social bonds are affected by individual and group factors. We observed social behaviour and spatial proximity in 145 feral horses, five groups of Przewalski�s horses (N = 36), and six groups of feral horses (N = 109) for 15 h per group, on three days within one week. We found grooming, friendly approaches, and spatial proximity to be robust parameters, as their correlation was affected only by the animals� sex (GLMM: N = 145, SE = 0.001, t = �2.7, p = 0.008) and the group size (GLMM: N = 145, SE < 0.001, t = 4.255, p < 0.001), but not by the horse breed, the aggression ratio, the social rank, the group, the group composition, and the individuals themselves. Our results show a trend for a correspondence between all three parameters (GLMM: N = 145, SE = 0.004, t = 1.95, p = 0.053), a strong correspondence between mutual grooming and friendly approaches (GLMM: N = 145, SE = 0.021, t = 3.922, p < 0.001), and a weak correspondence between mutual grooming and spatial proximity (GLMM: N = 145, SE = 0.04, t = 1.15, p = 0.25). We therefore suggest either using a combination of the proactive behaviour counts mutual grooming and friendly approaches, or using measurements of close spatial proximity, for the analysis of social bonds in horses within a limited time frame. |
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Edition |
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| ISSN |
2076-2615 |
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no |
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Equine Behaviour @ team @ |
Serial |
6428 |
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