Records |
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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ISSN |
2051-1434 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6594 |
Permanent link to this record |
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Author |
Krueger, K.; Schwarz, S.; Marr, I.; Farmer, K. |
Title |
Laterality in Horse Training: Psychological and Physical Balance and Coordination and Strength Rather Than Straightness |
Type |
Magazine Article |
Year |
2022 |
Publication |
Animals |
Abbreviated Journal |
Animals |
Volume |
12 |
Issue |
8 |
Pages |
1042 |
Keywords |
balance; body asymmetry; equitation; horse; motor laterality; sensory laterality; stress; welfare |
Abstract |
For centuries, a goal of training in many equestrian disciplines has been to straighten the horse, which is considered a key element in achieving its responsiveness and suppleness. However, laterality is a naturally occurring phenomenon in horses and encompasses body asymmetry, motor laterality and sensory laterality. Furthermore, forcibly counterbalancing motor laterality has been considered a cause of psychological imbalance in humans. Perhaps asymmetry and laterality should rather be accepted, with a focus on training psychological and physical balance, coordination and equal strength on both sides instead of enforcing “straightness”. To explore this, we conducted a review of the literature on the function and causes of motor and sensory laterality in horses, especially in horses when trained on the ground or under a rider. The literature reveals that body asymmetry is innate but does not prevent the horse from performing at a high level under a rider. Motor laterality is equally distributed in feral horses, while in domestic horses, age, breed, training and carrying a rider may cause left leg preferences. Most horses initially observe novel persons and potentially threatening objects or situations with their left sensory organs. Pronounced preferences for the use of left sensory organs or limbs indicate that the horse is experiencing increased emotionality or stress, and long-term insufficiencies in welfare, housing or training may result in left shifts in motor and sensory laterality and pessimistic mentalities. Therefore, increasing laterality can be regarded as an indicator for insufficiencies in housing, handling and training. We propose that laterality be recognized as a welfare indicator and that straightening the horse should be achieved by conducting training focused on balance, coordination and equal strength on both sides. |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
Animals |
Series Volume |
12 |
Series Issue |
8 |
Edition |
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ISSN |
2076-2615 |
ISBN |
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Medium |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6670 |
Permanent link to this record |
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Author |
Krueger, K.; Trager, L.; Farmer, K.; Byrne, R. |
Title |
Tool Use in Horses |
Type |
Journal Article |
Year |
2022 |
Publication |
Animals |
Abbreviated Journal |
Animals |
Volume |
12 |
Issue |
15 |
Pages |
1876 |
Keywords |
crowdsourcing; horse; innovation; mule; management; tool use |
Abstract |
Tool use has not yet been confirmed in horses, mules or donkeys. As this subject is difficult to research with conventional methods, we used a crowdsourcing approach to gather data. We contacted equid owners and carers and asked them to report and video examples of �unusual� behaviour via a dedicated website. We also searched YouTube and Facebook for videos of equids showing tool use. From 635 reports, including 1014 behaviours, we found 20 cases of tool use, 13 of which were unambiguous in that it was clear that the behaviour was not trained, caused by reduced welfare, incidental or accidental. We then assessed (a) the effect of management conditions on tool use and (b) whether the animals used tools alone, or socially, involving other equids or humans. We found that management restrictions were associated with corresponding tool use in 12 of the 13 cases (p = 0.01), e.g., equids using sticks to scrape hay within reach when feed was restricted. Furthermore, 8 of the 13 cases involved other equids or humans, such as horses using brushes to groom others. The most frequent tool use was for foraging, with seven examples, tool use for social purposes was seen in four cases, and there was just one case of tool use for escape. There was just one case of tool use for comfort, and in this instance, there were no management restrictions. Equids therefore can develop tool use, especially when management conditions are restricted, but it is a rare occurrence. |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
Animals |
Series Volume |
12 |
Series Issue |
15 |
Edition |
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ISSN |
2076-2615 |
ISBN |
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Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6695 |
Permanent link to this record |
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Author |
Kräußlich, H.; Brem, G. |
Title |
Tierzucht und allgemeine Landwirtschaftslehre für Tiermediziner |
Type |
Book Whole |
Year |
1997 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Publisher |
Enke |
Place of Publication |
Stuttgart |
Editor |
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Summary Language |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6542 |
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Author |
Krösbacher, A. E. |
Title |
Das Arabische Vollblut: Eine kontrovers diskutierte Rasse: Was steckt wirklich hinter der Zucht dieser edlen Pferde? |
Type |
Manuscript |
Year |
2008 |
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Thesis |
Bachelor's thesis |
Publisher |
University for Veterinarian Medicine Vienna |
Place of Publication |
Vienna |
Editor |
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Summary Language |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6544 |
Permanent link to this record |
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Author |
Kuczaj, S. A; Makecha, R.; Trone, M.; Paulos, R. D; Ramos, J. A. |
Title |
Role of Peers in Cultural Innovation and Cultural Transmission: Evidence from the Play of Dolphin Calves |
Type |
Journal Article |
Year |
2006 |
Publication |
International Journal of Comparative Psychology |
Abbreviated Journal |
Int. J. Comp. Psychol |
Volume |
19 |
Issue |
2 |
Pages |
223-240 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6526 |
Permanent link to this record |
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Author |
Lagos, L. |
Title |
Ecología del lobo (Canis lupus), del poni salvaje (Equus ferus atlanticus) y del ganado vacuno semiextensivo (Bos taurus) en Galicia: interacciones depredador-presa. |
Type |
Manuscript |
Year |
2013 |
Publication |
Phd thesis |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
458 |
Keywords |
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Thesis |
Ph.D. thesis |
Publisher |
Universidad de Santiago de Compostela |
Place of Publication |
Santiago de Compostela |
Editor |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6678 |
Permanent link to this record |
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Author |
Lagos, L.; Bárcena, F. |
Title |
How to reduce wolf predation on wild ponies in Galicia? |
Type |
Journal Article |
Year |
2022 |
Publication |
Carnivore Damage Prevention News |
Abbreviated Journal |
CDPNews |
Volume |
24 |
Issue |
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Pages |
24-31 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6680 |
Permanent link to this record |
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Author |
Lagos, L.; Blanco, P. |
Title |
Testing the use of dogs to prevent wolf attackson free ranging ponies in Iberia? |
Type |
Journal Article |
Year |
2021 |
Publication |
Carnivore Damage Prevention News |
Abbreviated Journal |
CDPnews |
Volume |
23 |
Issue |
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Pages |
20-27 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6679 |
Permanent link to this record |
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Author |
Laland, K. N.; van Bergen, Y |
Title |
Experimental studies of innovation in the guppy |
Type |
Journal Article |
Year |
2003 |
Publication |
Animal Innovation |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
155-174 |
Keywords |
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Publisher |
Oxford University Press |
Place of Publication |
Ox |
Editor |
S. M. Reader and K. N. Laland |
Language |
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Summary Language |
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Original Title |
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Series Editor |
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Series Issue |
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Area |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
6537 |
Permanent link to this record |