Domesticated horses differ in their behavioural and physiological responses to isolated and group housing

YARNELL, K., HALL, C., ROYLE, C. and WALKER, S.L., 2015. Domesticated horses differ in their behavioural and physiological responses to isolated and group housing. Physiology & Behavior, 143, pp. 51-57. ISSN 0031-9384

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Abstract

The predominant housing system used for domestic horses is individual stabling however, housing that limits social interaction and requires the horse to live in semi-isolation has been reported to be a concern for equine welfare. The aim of the current study was to compare behavioural and physiological responses of domestic horses in different types of housing design that provided varying levels of social contact. Horses (n = 16) were divided equally into four groups and exposed to each of four housing treatments for a period of five days per treatment in a randomized block design. The four housing treatments used were single housed no physical contact (SHNC), single housed semi contact (SHSC), paired housed full contact (PHFC) and group housed full contact (GHFC). During each housing treatment, adrenal activity was recorded using non-invasive faecal corticosterone metabolite analysis (fGC). Thermal images of the eye were captured and eye temperature assessed as a non-invasive measure of the stress response. Behavioural analysis of time budget was carried out and an ease of handling score was assigned to each horse in each treatment using video footage. SHNC horses had significantly higher (p = 0.01) concentrations of fGC and were significantly (p = 0.003) more difficult to handle compared to the other housing types. GHFC horses, although not significantly different, had numerically lower concentrations of fGC and were more compliant to handling when compared to all other housing treatments. Eye temperature was significantly (p = 0.0001) lower in the group housed treatment when compared to all other treatments. These results indicate that based on physiological and behavioural measures incorporating social contact into the housing design of domestic horses could improve the standard of domestic equine welfare.

Item Type: Journal article
Publication Title: Physiology & Behavior
Creators: Yarnell, K., Hall, C., Royle, C. and Walker, S.L.
Publisher: Elsevier
Date: 2015
Volume: 143
ISSN: 0031-9384
Identifiers:
NumberType
10.1016/j.physbeh.2015.02.040DOI
Divisions: Schools > School of Animal, Rural and Environmental Sciences
Depositing User: EPrints Services
Date Added: 09 Oct 2015 10:35
Last Modified: 23 Aug 2016 09:10
URI: http://irep.ntu.ac.uk/id/eprint/15103

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