Riemer, Stefanie and Assis, Luciana and Pike, Thomas W. and Mills, Daniel S. (2016) Dynamic changes in ear temperature in relation to separation distress in dogs. Physiology & Behavior, 167 . pp. 86-91. ISSN 0031-9384
25198 Thermography Accepted Manuscript.pdf - Whole Document
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Pet dogs were tested in a brief separation test and filmed remotely using thermography.
Temperature was analyzed from selected patches of both ear pinnae simultaneously.
Social isolation was associated with a significant decrease in ear pinnae temperature.
Temperature of the two ears did not differ significantly from each other.
Long distance thermography is a useful tool in non-invasive stress monitoring.
Infrared thermography can visualize changes in body surface temperature that result from stress-induced physiological changes and alterations of blood flow patterns. Here we explored its use for remote stress monitoring (i.e. removing need for human presence) in a sample of six pet dogs. Dogs were tested in a brief separation test involving contact with their owner, a stranger, and social isolation for two one-minute-periods. Tests were filmed using a thermographic camera set up in a corner of the room, around 7 m from where the subjects spent most of the time. Temperature was measured from selected regions of both ear pinnae simultaneously. Temperatures of both ear pinnae showed a pattern of decrease during separation and increase when a person (either the owner or a stranger) was present, with no lateralized temperature differences between the two ears. Long distance thermographic measurement is a promising technique for non-invasive remote stress assessment, although there are some limitations related to dogs' hair structure over the ears, making it unsuitable for some subjects.
|Keywords:||Ear temperature, Infrared thermography, Noninvasive stress monitoring, Pet dogs Canis familiaris, Physiological stress responses, Separation stress|
|Subjects:||D Veterinary Sciences, Agriculture and related subjects > D300 Animal Science|
D Veterinary Sciences, Agriculture and related subjects > D328 Animal Welfare
|Divisions:||College of Science > School of Life Sciences|
|Deposited On:||17 Nov 2016 17:15|
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