Article (Scientific journals)
Effect of oral antioxidant supplementation on blood antioxidant status in trained thoroughbred horses
De Moffarts, Brieuc; Kirschvink, Nathalie; Art, Tatiana et al.
2005In Veterinary Journal, 169 (1), p. 65-74
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Keywords :
thoroughbred; exercise; blood antioxidant status; antioxidant complement; field study
Abstract :
[en] The oxidant/antioxidant equilibrium of trained thoroughbred horses (n = 40) was assessed on three occasions during a period of three months under field conditions by blood antioxidant markers analysis, i.e. plasma ascorbic acid (AA), plasma antioxidant capacity of water-soluble components (ACW), whole blood (GSH) and oxidised (GSSG) glutathione, plasma alpha-tocopherol and beta-carotene, plasma antioxidant capacity of lipid-soluble components (ACL), red blood cell superoxide dismutase (SOD) and glutathione-peroxidase activity (GPx) and plasma trace-elements, i.e. selenium (Se), copper (Cu), zinc (Zn). A control group of ten horses receiving a placebo and an antioxidant group of 30 horses orally supplemented with an antioxidant mixture were randomly formed. An antioxidant imbalance was observed after three months in the control group, reflected by a significant decrease in GSH, SOD, GPx, Se (P < 0.05) and a significant increase in GSSG (P < 0.05). The antioxidant supplement prevented GPx and Se decrease and significantly increased ACW, alpha-tocopherol, beta-carotene and ACL (P < 0.05). Significant sex- or age-related differences were found for AA, ACW, alpha-tocopherol, SOD, GPx and Se, and there were significant correlations between ACW-AA, ACL-alpha-tocopherol, GPx-Se, CPK-Se, CPK-alpha-tocopherol and CPK-Cu. This field study has shown that trained thoroughbred horses undergo significant changes of several blood antioxidant markers and that oral antioxidant supplementation might partially counterbalance these changes by improving the hydrophilic, lipophilic and enzymatic antioxidant blood capacity. (C) 2004 Elsevier Ltd. All rights reserved.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Veterinary medicine & animal health
Author, co-author :
De Moffarts, Brieuc
Kirschvink, Nathalie
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
Language :
English
Title :
Effect of oral antioxidant supplementation on blood antioxidant status in trained thoroughbred horses
Publication date :
2005
Journal title :
Veterinary Journal
ISSN :
1090-0233
eISSN :
1532-2971
Publisher :
Bailliere Tindall, London, United Kingdom
Volume :
169
Issue :
1
Pages :
65-74
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
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