Article (Scientific journals)
Assessment of the oxidant-antioxidant blood balance in a field exercise test in Standardbred and eventing horses
De Moffarts, Brieuc; Kirschvink, Nathalie; Van Erck, Emmanuelle et al.
2005In Equine and Comparative Exercise Physiology, 2 (4), p. 253-261
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Keywords :
oxidative stress; exercise; field study; horses
Abstract :
[en] The aim of this study was to determüie which oxidant-antioxidant blood markers are of interest for a field exercise test (ET) performed on a racetrack. Healthy Standardbred herses (S: n = 12) and healthy eventing horses (E: n = 12) were investigated. Exercice was monitored by measuring velocity (V), heart rate (HR), and plasma lactate (LA). Whilst maximal LA did sot Biffer (11.8 ± 0.88 mmoll-1), maximal V (S: 12.3 ± 0.17ms-1 versus E: 11.1 ±0.24ms-1, P < 0,05) and final HR (S: 222 ±1 versus E: 203 ± 8 beats min-1, P < 0.03) were significantly différent between groups. Venous was collected at rest (R) prior to ET and The following oxidant-antioxidant markers were detennitted: uric acid (UA), ascorbic acid (AA), alpha-tocopherol (Vit E). vitamin A (Vit A), superoxide cüsmutase (SOB), glutaYhione peroxidase (GPx), glutathione (reduced: GSH and oxidized: GSS(r), glutathione redox ratio (GRR), copper (Cu), zinc (Zn) and sélénium (Se), uxidized proteins (Protox), lipid prrosides (Pool), antioxidant capacity of water-soluble comporteras (ACW) and antioxidant capacity of lipid-soluble components (ACW). The following markers were further determined 15 min (E15) after the ET:UA, ACW; AA, GSH, Proton, Pool, ACL. Standardbreds had significantly higher concentrations of ACW, GSH, ACL and Protox, whilst Se, Zn and SOI) were significantly lover than in eventing horses. Exercice induced a significant increase in ACW and UA. GSH decreaced in eventing horses and Pool significantly decreased in both horse groups. This study describes a field ET of high intensity for Standardbred and eventing horses, which could be performed by all animals tested. By sampling blond al rest and at E15, changes of thé hydrophilic antioxidant defence were partially assessed, whereas no interpretable changes of the lipophilic antioxidants and of oxidation markers (Protox, Pool) could be detected
Disciplines :
Veterinary medicine & animal health
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
De Moffarts, Brieuc
Kirschvink, Nathalie
Van Erck, Emmanuelle ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Phys. neuro-muscul., de l'effort - Méd. sport. des animaux
Art, Tatiana ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Phys. neuro-muscul., de l'effort - Méd. sport. des animaux
Pincemail, Joël ;  Centre Hospitalier Universitaire de Liège - CHU > Chirurgie cardio-vasculaire
Lekeux, Pierre ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie - Doyen de la Faculté de Médecine vétérinaire
Language :
English
Title :
Assessment of the oxidant-antioxidant blood balance in a field exercise test in Standardbred and eventing horses
Publication date :
2005
Journal title :
Equine and Comparative Exercise Physiology
ISSN :
1478-0615
Publisher :
Cambridge University Press
Volume :
2
Issue :
4
Pages :
253-261
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 April 2009

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