Table 3 Biochemical parameters of stallions

Superoxide dismutase (u/ml)

Pre-exercise

1.62 ± 0.21

2.23 ± 0.31¹

Post-exercise

2.49 ± 0.14^a

7.54 ± 4.02^b2

Catalase (u/ml)

Pre-exercise

4.97 ± 0.23

4.87 ± 0.57¹

Post-exercise

6.04 ± 0.43^a

9.76 ± 4.91^b2

Glutathione peroxidase (U/L)

Pre-exercise

259.90 ± 6.32

287.23 ± 9.78¹

Post-exercise

278.13 ± 8.43^a

318.08 ± 18.86^b2

Glutathione reductase (U/L)

Pre-exercise

0.44 ± 0.16

0.45 ± 0.03

Post-exercise

0.87 ± 0.34

1.58 ± 1.33

Malondialdehyde (µmol/L)

Pre-exercise

5.61 ± 0.34

5.32 ± 1.06¹

Post-exercise

10.24 ± 5.77^b2

7.26 ± 0.56^a

Heat shock protein-70 (ng/ml)

Pre-exercise

Post-exercise

237.16 ± 10.91

284.38 ± 18.71^a

242.31 ± 12.03

307.86 ± 24.98^b