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Year : 2006
Tome : 157
Volume : 6
Pages : 307-312
Title : Status of biochemical and antioxidant variables in horses before and after long distance race
Authors : K. M. AL-QUDAH, A. M. AL-MAJALI
Summary : To study the effect of strenuous physical exercise on the levels of lipid peroxidation indices and some blood antioxidant activity in horses, blood of 60 horses subjected to different levels of a 120 km endurance race were collected. Blood was collected from each horse three times, before, at the end of the race (group 1 at 60km, group 2 at 90 km and group 3 at 120 km), and two weeks after the race. For each blood sample, the levels of lipid peroxides (LPO) and thiobarbituric acid reactive substances (TBARS), and the activities of glutathione peroxidase (GSH-Px) and creatine phosphokinase (CPK) were measured. The levels of LPO, TBARS and CPK were significantly (P < 0.01) increased in all horses at the end of the race. On the contrary, a significant (P < 0.05) reduction in the activity of GSH-Px was observed at the end of the race. The levels of LPO and TBARS, and the activities of GSH-Px and CPK returned to their normal levels 2 weeks after the race. The levels of LPO and TBARS in the blood of horses eliminated at the different check points were significantly higher (P < 0.05) than those of the horses able to run the 120 km race.
Keywords : horses - lipid peroxides - TBARS - glutathione peroxidase - creatine phosphokinase - endurance race.
Correspondence : K. M. AL-QUDAH
Adress : Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan. Tel : + 962-2-7201000 Ext : 22017 - Fax : + 962-2-7095117 - E-mail : alqudah@just.edu.jo
Link : pdf

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