Table 3 Values of serum OS biomarkers in horses pre- and post-races by average speed and gender

d-ROMs (U.Carr.)

Pre-race

166.5 ± 7.3

160.6 ± 8.2

171.1 ± 8.0

164.1 ± 11.9

Post-race

171.5 ± 8.2

170.1 ± 8.9

177.2 ± 9.8

170.2 ± 11.8

P

0.08

0.002

0.03

0.03

P^a

BAP (μmol/L)

Pre-race

2570.2 ± 28.4

2585.4 ± 39.6

2570.8 ± 29.82

2588.5 ± 46.9

Post-race

2849.2 ± 23.3

2787.5 ± 41.0

2816.3 ± 21.3

2825.2 ± 51.5

P

<  0.001

<  0.001

<  0.001

<  0.001

P^a

MDA (μmol/L)

Pre-race

4.7 ± 0.1

5.2 ± 0.3

4.8 ± 0.1

4.9 ± 0.3

Post-race

5.0 ± 0.2

5.3 ± 0.3

5.1 ± 0.1

5.1 ± 0.4

P

0.003

0.3

0.01

0.2

P^a

OSI (arbitrary units)

Pre-race

6.5 ± 0.3

6.2 ± 0.3

6.7 ± 0.4

6.4 ± 0.5

Post-race

6.04 ± 0.3

6.1 ± 0.4

6.4 ± 0.5

6.4 ± 0.5

P

<  0.001

0.116

< 0.001

<  0.001

P^a