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Table 1 Effect of porcine relaxin (pRLX) on sperm motility and velocity parameters (VAP, VSL, and VCL) following storage

From: Beneficial effects of relaxin on motility characteristics of stored boar spermatozoa

Relaxin concentrations (ng/ml) Day 0 Day 1 Day 2
  Proportions of total motile spermatozoa (%)
0 62.7 +/− 2.7a, ¥ 58.5 +/− 2.5a, § 54.1 +/− 3.2a, €
50 65.3 +/− 2.9a, ¥ 62.3 +/− 2.5ab, ¥ 57.1 +/− 2.9a, §
100 65.4 +/− 2.3a, ¥ 66.1 +/− 1.9b, ¥ 56.8 +/− 3.1a, §
  Proportions of progressive spermatozoa (%)
0 23.1 +/− 2.4a, ¥ 30.8 +/− 2.3a, § 26.2 +/− 2.4a, ¥§
50 28.2 +/− 4.2ab, ¥ 38.8 +/− 2.0b, § 32.2 +/− 2.1b, ¥§
100 32.3 +/− 1.9b, ¥ 36.6 +/− 1.9b, ¥ 33.4 +/− 2.5b, ¥
  Proportions of rapid spermatozoa (%)
0 32.5 +/− 3.9a, ¥ 46.2 +/− 2.6a, § 41.6 +/− 4.3a, §
50 35.1 +/− 4.8ab, ¥ 48.4 +/− 3.0a, § 48.0 +/− 2.6b, §
100 40.4 +/− 2.4b, ¥ 49.1 +/− 2.9a, § 48.9 +/− 2.7b, §
  Average Path Velocity (VAP; μm/s)
0 61.4 +/− 3.1a, ¥ 71.1 +/− 2.5a, § 72.7 +/− 3.3a, §
50 65.8 +/− 3.7ab, ¥ 73.1 +/− 2.9a, ¥§ 76.2 +/− 3.2a, §
100 69.8 +/− 2.9b, ¥ 74.0 +/− 1.7a, ¥§ 76.2 +/− 2.8a, §
  Curvilinear Velocity (VCL; μm/s)
0 119.4 +/− 5.7a, ¥ 142.3 +/− 4.4a, § 146.5 +/− 4.6a, §
50 120.3 +/− 4.7a, ¥ 139.5 +/− 4.9a, § 145.6 +/− 4.7a, §
100 125.2 +/− 5.6a, ¥ 137.5 +/− 2.9a, § 138.4 +/− 4.1a, §
  Straight Line Velocity (VSL; μm/s)
0 48.0 +/− 1.9a, ¥ 52.7 +/− 1.7a, § 53.7 +/− 2.5a, §
50 53.2 +/− 3.0ab, ¥ 57.5 +/− 2.0ab, § 57.0 +/− 2.4a, §
100 57.1 +/− 2.1b, ¥ 58.6 +/− 1.2b, ¥ 56.9 +/− 2.3a, ¥
  1. Letters (a,b,c) and symbols (¥,§,€) indicate significant differences within the same column (relaxin effect) and the same row (storage effect), respectively (p ≤ 0.05). Data are means (+/− SEM) of 4 independent replicates, representing approximately 8,869 to 10,600 spermatozoa analyzed on a total of 48 CASA fields.