A pilot study investigating whether cortisol measurements in mane hair can distinguish between different horse management systems in Iceland and thereby indicate differences in long-term stress.

Horse welfare is often assessed with reference to the Five Freedoms. Horses are social animals, generally living in groups when given the opportunity, and they also have a strong need for movement. The Icelandic horse is well adapted to the Icelandic environment, although weather conditions can at times be challenging. Stabling restricts many of the horse’s freedoms but, in return, provides shelter and regular feeding.

The research question is whether there is a measurable difference in long-term stress between these groups, as well as between stabled horses that receive different amounts of exercise and turnout.