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Table 1 Groups of young, adult and aged Nellore bulls with number of evaluated samples (27, 59 and 36, respectively), scrotal circumference and computer assisted sperm analysis after cryopreservation (means ± SD)

From: Does sperm quality and DNA integrity differ in cryopreserved semen samples from young, adult, and aged Nellore bulls?

Group (n) Age (years) Scrotal circumference MOT (%) PM (%) VAP (μm/s) VSL (μm/s) VCL (μm/s)
Young (27) 1.9 ± 0.1 38.17 ± 3.50 a 67.80 ± 17.68a 36.93 ± 11.28a 74.85 ± 12.53b 53.41 ± 10.23b 144.82 ± 25.48b
Adult (57) 4.8 ± 1.0 41.14 ± 2.19 b 39.83 ± 13.52b 23.13 ± 8.65 85.80 ± 12.23a 68.13 ± 10.89a 160.44 ± 23.10a
Aged (36) 10.1 ± 2.0 40.13 ± 2.89 b 37.99 ± 17.75b 22.12  ± 11.64b 82.93 ± 13.29a 65.59 ± 12.84a 155.66 ± 24.37ab
  1. Means with different superscripts same column differ significantly (p < 0.05) by the Duncan test
  2. MOT (total motility)
  3. PM (progressive motility)
  4. VAP (average path velocity)
  5. VSL (straight-line velocity)
  6. VCL (curvilinear velocity)