036 Development of an equine non-contact thermography device: Evaluation of thermal expression on multiple sites of the horse as an indicator of body temperature

Collins, H. C.; Leatherwood, Jessica L; Anderson, Mark J.; Beverly, M. M.; Yıldız, Faruk; Stutts, K. J.

doi:10.2527/ssasas2015-036

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“…Rectal temperature is one of the easiest measurements for determining body temperature in many animal species (Ritter et al 2009;Burfeind et al 2010;Ramey et al 2011;Dangarembizi et al 2017;Robinson et al 1998;Romano et al 1993) and the use of a rectal thermometer is the most commonly used method of obtaining body temperature in horses (Hall et al 2019;Hine et al 2015;Giannetto et al 2012). The rectal temperature has been shown to be highly correlated with deep core body temperature in some horse studies (Morgan 1997;Marlin et al 1999;Collins et al 2016;Ramey et al 2011). However, other studies have shown that it is not ideal for the detection of the early stages of fever (Maeda and Oikawa 2019) or for monitoring body temperature during exercise or immediate post-exercise (Kang et al 2020).…”

Section: Rectal Temperaturementioning

confidence: 99%

Heat stress in horses: a literature review

et al. 2023

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Healthy adult horses can balance accumulation and dissipation of body heat to maintain their body temperature between 37.5 and 38.5 °C, when they are in their thermoneutral zone (5 to 25 °C). However, under some circumstances, such as following strenuous exercise under hot, or hot and humid conditions, the accumulation of body heat exceeds dissipation and horses can suffer from heat stress. Prolonged or severe heat stress can lead to anhidrosis, heat stroke, or brain damage in the horse. To ameliorate the negative effects of high heat load in the body, early detection of heat stress and immediate human intervention is required to reduce the horse’s elevated body temperature in a timely manner. Body temperature measurement and deviations from the normal range are used to detect heat stress. Rectal temperature is the most commonly used method to monitor body temperature in horses, but other body temperature monitoring technologies, percutaneous thermal sensing microchips or infrared thermometry, are currently being studied for routine monitoring of the body temperature of horses as a more practical alternative. When heat stress is detected, horses can be cooled down by cool water application, air movement over the horse (e.g., fans), or a combination of these. The early detection of heat stress and the use of the most effective cooling methods is important to improve the welfare of heat stressed horses.

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