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Transport Stress and Exercise Hyperthermia Recorded in Sheep by Radiotelemetry

Published online by Cambridge University Press:  11 January 2023

R F Parrott ,
D M Lloyd  and
D Brown
R F Parrott*
Affiliation:
MAFF Laboratory of Welfare and Behaviour, The Babraham Institute, Cambridge CB2 4AT, UK
D M Lloyd
Affiliation:
MAFF Laboratory of Welfare and Behaviour, The Babraham Institute, Cambridge CB2 4AT, UK
D Brown
Affiliation:
MAFF Laboratory of Welfare and Behaviour, The Babraham Institute, Cambridge CB2 4AT, UK
*
† Contact for correspondence and requests for reprints
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Abstract

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Deep body temperature was measured in four wethers and four ewes surgically implanted with biotelemetry devices. Records were taken over several days in the home pen (baseline data) and also in response to three potentially stressful procedures: transport, exposure to a sheepdog, and forced exercise. Loading the animals into a vehicle and transporting them for 2.5h produced a rise in core temperature that, in males, persisted for several hours. Moving the sheep into an outside pen and subsequent exposure to the dog appeared to produce transient increases in body temperature, although these changes were not statistically significant. By contrast, exercise for 30min resulted in a rapid and pronounced (approximately 2°C) temperature rise that was followed by an equally abrupt return to baseline. Sustained increases in deep body temperature or changes in circadian temperature rhythms in healthy sheep may be a response to psychological distress and, therefore, indicative of poor welfare.

Keywords

animal welfareexercisehyperthermiasheepstress
Type
Research Article
Information
Animal Welfare , Volume 8 , Issue 1 , February 1999 , pp. 27 - 34
Copyright
© 1999 Universities Federation for Animal Welfare

References

Bligh, J, Ingram, D L, Keynes, R D and Robinson, S G 1965 The deep body temperature of an unrestrained Welsh Mountain sheep recorded by a radiotelemetric technique during a 12-month period. Journal of Physiology 176: 136–144CrossRefGoogle ScholarPubMed
Broom, D M, Goode, J A, Hall, S J G, Lloyd, D M and Parrott, R F 1996 Hormonal and physiological effects of a 15 hour road journey in sheep: comparison with the response to loading, handling and penning in the absence of transport. British Veterinary Journal 152: 593–604CrossRefGoogle ScholarPubMed
Brown, G D 1971 Thermal status of sheep at pasture in western New South Wales. Journal of Agricultural Research 22: 797–808Google Scholar
Johnson, KG 1991 Body temperatures and respiratory rates of free-ranging Merino sheep in and out of shade during summer. Australian Journal of Agricultural Research 42: 1347–1357CrossRefGoogle Scholar
Kluger, M J, O'Reilly, B O, Shope, T R and Vander, A J 1987 Further evidence that stress hyperthermia is a fever. Physiology & Behavior 39: 763–766CrossRefGoogle ScholarPubMed
Lefcourt, A M and Adams, W R 1996 Radiotelemetry measurements of body temperature of feedlot steers during summer. Journal of Animal Science 74: 2633–2640CrossRefGoogle ScholarPubMed
Marazitti, D, di Muro, A and Castrogiovanni, P 1992 Psychological stress and body temperature changes in humans. Physiology & Behavior 52: 393–395Google Scholar
Meerlo, P, De Boer, S F, Koolhaas, J M, Daan, S and Van Den Hoofdakker, RH 1996 Changes in daily rhythms of body temperature and activity after a single social defeat in rats. Physiology & Behavior 59: 735–739CrossRefGoogle ScholarPubMed
Moe, R O 1996 Investigation of Methods to Assess Stress in Farmed Silver Foxes (Vulpes vulpes). PhD thesis, Norwegian College of Veterinary Medicine Research Farm, Oslo, NorwayGoogle Scholar
Mohr, E and Krzywanek, H 1990 Variations in core-temperature rhythms in unrestrained sheep. Physiology & Behavior 48: 467–473CrossRefGoogle ScholarPubMed
Morimoto, A, Watanabe, T, Myogin, T and Murakami, N 1987 Restraint stress elicits acute phase responses in rabbits. Pfuugers Archives 410: 554–556CrossRefGoogle Scholar
Nakamori, T, Morimoto, A, Morimoto, K, Tan, N and Murakami, N 1993 Effects of α- and β-adrenergic antagonists on rise in body temperature induced by psychological stress in rats. American Journal of Physiology 264: R156–R161Google ScholarPubMed
Parrott, R F and Lloyd, D M 1995 Restraint, but not frustration, induces prostaglandin-mediated hyperthermia in pigs. Physiology & Behavior 57: 1051–1055CrossRefGoogle Scholar
Singer, R, Harker, C T, Vander, A J and Kluger, MJ 1986 Hyperthermia induced by open field stress is blocked by salicylate. Physiology & Behavior 6: 1179–1182CrossRefGoogle Scholar
Tanaka, H, Yanase-Fujiwara, M and Kanaosue, K 1993 Effects of centrally and systemically administered indomethacin on exercising rats. American Journal of Physiology 265: R220–R234Google ScholarPubMed