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Table 2 Body weight and muscle fiber properties (population and area) before and after training of Thoroughbred horses in each genotype (g.66493737C/T: T/T, C/T and C/C genotypes)

From: Effect of Myostatin SNP on muscle fiber properties in male Thoroughbred horses during training period

 

Before training

After training

T/T

C/T

C/C

T/T

C/T

C/C

Body weight (kg)

444 ± 8.4

438 ± 6.8

470 ± 6.5

467 ± 7.8*

452 ± 6.2*

486 ± 7.4*

Population (%)

 Type I

11.1 ± 1.9

13.7 ± 2.8

7.5 ± 1.9

15.7 ± 11.1

13.8 ± 9.1

9.4 ± 6.5

 Type IIa

40.4 ± 4.5

41.5 ± 3.5

40.8 ± 2.6

48.7 ± 5.9

45.8 ± 6.4

45. 5 ± 7.8

 Type IIx

48.5 ± 5.2

44. 8 ± 2.6

51.7 ± 2.5

35.6 ± 12.7 *

40.4 ± 10.7

45.1 ± 9.4

Area (μm2)

 Type I

2230 ± 186

1749 ± 64

2487 ± 300

2577 ± 291

2445 ± 299

2626 ± 284

 Type IIa

2543 ±179

2522 ± 174

2202 ± 158

2753 ± 129

2838 ± 218

2816 ± 331

 Type IIx

3939 ± 299

3538 ± 298

3832 ± 332

4233 ± 450

3898 ± 378

4647 ± 325 *

  1. Values are mean ± SEM (n = 9 in each group)
  2. * Significant difference (P < 0.05) between before and after training in same genotype group