Table 1 Sperm motility parameters (mean ± SD) measured by computer assisted sperm analysis in semen from beef to dairy bulls (n = 37)
Parameters | Beef (n = 17) | Dairy (n = 20) | Significance |
|---|---|---|---|
Motility (%) | 64 ± 14 | 59 ± 14 | NS |
Progressive motility (%) | 58 ± 13 | 55.6 ± 14 | NS |
Hyperactivity (%) | 6 ± 3 | 11 ± 5 | P < 0.01 |
VAP (μm/s) | 52 ± 4 | 65 ± 8 | P < 0.001 |
VCL (μm/s) | 87 ± 8 | 128 ± 18 | P < 0.001 |
VSL (μm/s) | 39 ± 3 | 45 ± 7 | P < 0.01 |
STR | 0.75 ± 0.03 | 0.70 ± 0.05 | P < 0.001 |
LIN | 0.44 ± 0.02 | 0.35 ± 0.04 | P < 0.001 |
WOB | 0.59 ± 0.01 | 0.50 ± 0.03 | P < 0.001 |
ALH (μm) | 4.1 ± 0.6 | 4.98 ± 0.5 | P < 0.001 |
BCF (Hz) | 23 ± 1.4 | 22 ± 2.5 | NS |