Comparison of rectal and tympanic core body temperature measurement in adult Guyanese squirrel monkeys (Saimiri sciureus sciureus)

Department of Comparative Medicine, Stanford University, Stanford, CA, USA.
Journal of Medical Primatology (Impact Factor: 0.82). 10/2010; 40(2):135-41. DOI: 10.1111/j.1600-0684.2010.00449.x
Source: PubMed


Measuring core body temperature in a manner that is safe for animals and veterinary personnel is an important part of a physical examination. For nonhuman primates, this can involve increased restraint, additional stress, as well as the use of anesthetics and their deleterious effects on body temperature measurements. The purpose of this study was to compare two non-invasive methods of infrared tympanic thermometry to standard rectal thermometry in adult squirrel monkeys.
Tympanic temperatures were collected from 37 squirrel monkeys and compared to rectal temperatures using a human and veterinary infrared tympanic thermometer.
Compared with rectal temperature measurements, the human tympanic thermometer readings were not significantly different, while the veterinary tympanic thermometer measurements were significantly higher (P<0.05). There were no differences between sexes.
The tympanic thermometer designed for use in humans can be used in adult squirrel monkeys as an alternative to rectal thermometry for assessing core body temperature.

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    • "As a result, strict biosecurity precautions are recommended when handling them (Brady 2000). Obtaining a core body temperature is recognised as being an essential component of a comprehensive physical examination in non-human primates (Long et al. 2011), but handling primates to obtain a core body temperature raises issues of occupational health (Long et al. 2011) and patient welfare, as the capture and handling of nonhuman primates not habituated to the process is recognised to be stressful and potentially detrimental to welfare (Rodas-Martínez et al. 2013). This study attempted to establish the utility of noninvasive facial thermography as a proxy for invasive core body temperature measurements, to minimise the potential for human and animal safety and welfare problems. "
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