Establishing a yard specific normal rectal temperature reference range for horses

Hall, E.J. ORCID: 0000-0002-9978-8736, Carter, A.J. ORCID: 0000-0002-6216-2377, Stevenson, A.G. and Hall, C. ORCID: 0000-0001-5916-311X, 2018. Establishing a yard specific normal rectal temperature reference range for horses. Journal of Equine Veterinary Science. ISSN 0737-0806

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Abstract

Previously published equine temperature ranges often fail to state the population of animals or the method of temperature measurement used to establish the range. An inappropriate reference range can negatively affect the interpretation of measurements, resulting in animals being misdiagnosed. A yard specific equine rectal temperature reference range was therefore calculated. 652 rectal temperatures were collected from a population of 41 healthy adult horses, including a range of breeds aged 2-23 years old. Rectal temperature was measured at a depth of 5cm, using lubricated digital predictive thermometers. The normal rectal temperature range of horses on this yard was 36.0 – 38.0°C (90% confidence interval [CI] = 35.97–36.03°C at the lower limit, CI = 37.97–38.03°C at the upper limit). A Mann Whitney test showed significant difference between geldings and mares (Z = -1.389, p = 0.165). Spearman’s correlation showed no significant correlations between rectal temperature and ambient temperature (Rs = 0.137, p = 0.052), or rectal temperature and horse height (Rs = -0.047, p = 0.791). The upper limit of the range is lower than most previously suggested temperature ranges, which may reflect the low stress environment in which temperatures were measured; horses were housed in a familiar environment and examined and handled by familiar equine technicians. The findings of this study suggest that establishing yard specific normal temperature ranges could improve early detection of fever, and support biosecurity protocols in the face of infectious disease outbreaks. Additionally, the results suggest that existing equine temperature ranges may need reviewing.

Item Type: Journal article
Publication Title: Journal of Equine Veterinary Science
Creators: Hall, E.J., Carter, A.J., Stevenson, A.G. and Hall, C.
Publisher: Elsevier
Date: 28 December 2018
ISSN: 0737-0806
Identifiers:
NumberType
10.1016/j.jevs.2018.12.023DOI
S0737080618306142Publisher Item Identifier
Divisions: Schools > School of Animal, Rural and Environmental Sciences
Depositing User: Linda Sullivan
Date Added: 11 Jan 2019 14:49
Last Modified: 11 Jan 2019 14:49
URI: http://irep.ntu.ac.uk/id/eprint/35529

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