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The Effect of Exercise Deprivation on the Behaviour and Physiology of Straight Stall Confined Pregnant Mares

Published online by Cambridge University Press:  11 January 2023

K Houpt ,
T R Houpt ,
J L Johnson ,
H N Erb  and
S C Yeon
K Houpt*
Affiliation:
Department of Biomedical Sciences, College of Veterinary Medicine, Box 15, Cornell University, Ithaca, New York, NY 14853-6401, USA
T R Houpt
Affiliation:
Departments of Physiology and Epidemiology, College of Veterinary Medicine, Cornell University, Ithaca, New York, NY, USA
J L Johnson
Affiliation:
Departments of Physiology and Epidemiology, College of Veterinary Medicine, Cornell University, Ithaca, New York, NY, USA
H N Erb
Affiliation:
Departments of Physiology and Epidemiology, College of Veterinary Medicine, Cornell University, Ithaca, New York, NY, USA
S C Yeon
Affiliation:
Department of Surgery, College of Veterinary Medicine, Gyeongsang National University, 660-701 Gyeongnam, Chinju, Gazwa-Dong, 900, Republic of South Korea
*
† Contact for correspondence and requests for reprints
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Abstract

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The purpose of this experiment was to investigate the welfare of pregnant mares kept in straight stalls and given only limited exercise, conditions that are similar to those encountered in the pregnant mare urine industry. Sixteen pregnant mares (eight in each of two years) were randomly assigned to two groups: Ex (exercised in a paddock for 30 min per day) or NoEx (exercised for one 30 min period every 14 days). The horses were housed in straight (or ‘tie’) stalls for six months and had ad libitum access to grass hay. Each horse's behaviour was recorded on videotape once per week for 24 h. The major behaviours were eating hay, standing, and stand-resting (head down and one hind limb flexed). There was no difference between the behaviours or the number of foot lifts per min of the Ex and NoEx groups in their stalls. Nine of 16 mares were not observed in recumbency throughout the whole of the six-month observation period, suggesting that horses with no previous experience in straight stalls may be reluctant to lie down. Thirteen of 16 mares dropped to their knees at least once, probably when they were REM sleeping while standing. There were no significant differences between the Ex and the NoEx mares in baseline plasma Cortisol levels or in Cortisol response to ACTH. Following 30 min of exercise, NoEx mares showed an increase in Cortisol from 5.0 to 5.4 μg dL−1, whereas Ex mares showed a decrease from 4.6 to 3.6 µg dL−1. The NoEx horses that had been confined for two weeks trotted more (NoEx = 22 [6-38; median and range]% of time; Ex = 2.4 [0-8.7]%) and galloped more (NoEx = 6 [2-8]%; Ex = 0 [0-4]%) than the Ex that were released daily, but walked less (NoEx = 17 [10-26]%; Ex = 35 [20-40]%) and grazed less (NoEx = 0%; Ex = 3 [0-12]%). Confined horses show rebound locomotion — that is, a compensatory increase — when released from confinement, indicating a response to exercise deprivation.

Keywords

animal welfarebehaviourcortisolexercise restrictionhorserestraintwelfare
Type
Research Article
Information
Animal Welfare , Volume 10 , Issue 3 , August 2001 , pp. 257 - 267
Copyright
© 2001 Universities Federation for Animal Welfare

References

Anonymous 1990 Recommended Code of Practice for the Care and Handling of Horses in PMU Operations. Animal Industry Branch, Agricultural Services Complex, Winnipeg, Manitoba, CanadaGoogle Scholar
Beech, J 1987 Tumors of the pituitary gland (Pars intermedia). In: Robinson, N E (ed) Current Therapy in Equine Medicine 2, pp 182–185. W B Saunders Company: Philadelphia, USAGoogle Scholar
Church, D B, Evans, D L, Lewis, D R and Rose, R J 1987 The effect of exercise on plasma adrenocorticotrophin, Cortisol and insulin in the horse and adaptations with training. In: Gillespie, J R and Robinson, N E (eds) Equine Exercise Physiology 2, pp 506–515. ICEEP Publications: Davis, CA, USAGoogle Scholar
Dellmeier, G, Friend, T and Gbur, E 1990 Effects of changing housing in open-field behaviour of calves. Applied Animal Behaviour Science 26: 215–230CrossRefGoogle Scholar
Flannigan, G and Stookey, J M 1998 The prevalence and associated management factors of stereotypes in tethered pregnant mares: a survey comparing draft versus light breeds. Newsletter of The American Veterinary Society of Animal Behavior 20: 7 (Abstract)Google Scholar
Freeman, D A, Cymbaluk, N F, Schott, H C II, Hinchcliff, K and McDonnell, S M 1999 Clinical, biochemical and hygiene assessment of stabled horses provided continuous or intermittent access to drinking water. American Journal of Veterinary Research 60: 1445–1450Google ScholarPubMed
Houpt, K A, Eggleston, A, Kunkle, K and Houpt, T R 2000 Effect of water restriction on equine behavior and physiology. Equine Veterinary Journal 32: 341–344CrossRefGoogle ScholarPubMed
King, A B, Messer, N T and Roberts, C A 1997 Equine veterinarians’ consensus report on the care of horses on PMU ranches. Joint publication by the American Association of Equine Practitioners, the Canadian Veterinary Medical Association, and the International League for the Protection of HorsesGoogle Scholar
Ladewig, J and Smidt, D 1998 Behavior, episodic secretion of Cortisol, and adreno-cortical reactivity in bulls subjected to tethering. Hormones and Behavior 23: 344–360CrossRefGoogle Scholar
Lamb, C, Tilton, J, Swantek, M and Weigl, R 1996 Water intake and confinement effects on hormone production in the pregnant mare. Proceedings of the American Association of Equine Practitioners 42: 324–325Google Scholar
Mal, M E, Friend, T H, Lay, D C, Vogelsang, S G and Jenkins, OC 1991 Physiological responses of mares to short term confinement and social isolation. Equine Veterinary Science lì: 96–102CrossRefGoogle Scholar
Martin, P and Bateson, P 1986 Measuring Behaviour: An Introductory Guide. Cambridge University Press: Cambridge, UKGoogle Scholar
McDonnell, S M, Freeman, D A, Cymbaluk, N F, Schott, H C II, Hinchcliff, K W and Kyle, B 1999 Behavior of stabled horses provided continuous or intermittent access to drinking water. American Journal of Veterinary Research 60: 1451–1456Google ScholarPubMed
McGreevy, P D, Cripps, P J, French, N P, Green, L E and Nicol, C J 1995 Management factors associated with stereotypic and redirected behaviour in the thoroughbred horse. Equine Veterinary Journal 27: 86–91CrossRefGoogle ScholarPubMed
Paulhus, M 1998 Report of the Intergroup on the protection of animals. Proceedings of !49’h Session of the Intergroup On The Welfare And Conservation Of Animals, June 18, Strasbourg, FranceGoogle Scholar
Reimers, T J, Salerno, V J and Lamb, S V 1996 Validation and application of solid-phase chemiluminescent immunoassays for diagnosis of endocrine diseases in animals. Comparative Haematology International 6: 170–175CrossRefGoogle Scholar
Ruckebusch, Y 1972 The relevance of drowsiness in the circadian cycle of farm animals. Animal Behaviour 20: 637–643CrossRefGoogle ScholarPubMed
Ruckebusch, Y 1975 The hypnogram as an index of adaptation of farm animals to changes in their environment. Applied Animal Ethology 2: 3–18CrossRefGoogle Scholar
Rushen, J 1991 Problems associated with the interpretation of physiological data in the assessment of animal welfare. Applied Animal Behaviour Science 28: 381 -386CrossRefGoogle Scholar
Shaw, E B, Houpt, K A and Holmes, D F 1988 Body temperature and behaviour of mares during the last two weeks of pregnancy. Equine Veterinary Journal 20: 199–201CrossRefGoogle ScholarPubMed
Siegel, S 1956 Nonparametric Statistics for the Behavioral Sciences. McGraw-Hill Book Company: New York, USAGoogle Scholar
Smith, B L, Jones, J H, Hornof, W J, Miles, J A, Longworth, K E and Willits, N H 1996 Effects of road transport on indices of stress in horses. Equine Veterinary Journal 29: 446–454CrossRefGoogle Scholar
Stull, C L and McDonough, S P 1994 Multidisciplinary approach to evaluating welfare of veal calves in commercial facilities. Journal of Animal Science 72: 2518–2524CrossRefGoogle ScholarPubMed
Sweeney, C R and Hansen, T O 1987 Narcolepsy and epilepsy. In: Robinson N E (ed) Current Therapy in Equine Medicine 2, pp 349-353. W B Saunders Company: Philadelphia, USAGoogle Scholar
Terlouw, E M C, Schouten, W G P and Ladewig, J 1997 Physiology. In: Appleby M C and Hughes B L (eds) Animal Welfare pp 143–148. CAB International: New York, USAGoogle Scholar
Willard, J G, Willard, J C, Wolfram, S A and Baker, J P 1977 Effect of diet on cecal pH and feeding behavior of horses. Journal of Animal Science 45: 87–93.CrossRefGoogle ScholarPubMed