Young bulls | Adult bulls | |
---|---|---|
Mean ± SD | Mean ± SD | |
Major abnormalities, % | 6.1 ± 2.31 | 10.1 ± 5.42 |
Immature sperm, % | 0.4 ± 0.2 | 1.3 ± 0.7 |
Double forms, % | 0.2 ± 0.2 | 0.3 ± 0.2 |
Acrosome defects (knobbed acrosome), % | 0.5 ± 0.1 | 0.7 ± 0.3 |
Decapitated head, % | 1.2 ± 0.3 | 2.1 ± 0.8 |
Teratoid heads, % | 0.7 ± 0.2 | 1.1 ± 0.6 |
Diadem defects, % | 0.1 ± 0.07 | 0.1 ± 0.1 |
Pear-shaped defects, % | 0.2 ± 0.1 | 0.4 ± 0.2 |
Macrocephalic head, % | 0.1 ± 0.1 | 0.1 ± 0.06 |
Microcephalic head, % | 0.8 ± 0.2 | 1.1 ± 0.5 |
Corkscrew defects, % | 0.1 ± 0.14 | 0.2 ± 0.16 |
Tail stumps, % | 0.2 ± 0.1 | 0.2 ± 0.2 |
Strongly coiled tails, “Dag” defect, % | 0.9 ± 0.3 | 1.4 ± 1.3 |
Proximal droplets, % | 0.7 ± 0.3 | 1.1 ± 0.3 |
Minor abnormalities, % | 2.3 ± 0.81 | 4.2 ± 1.28 |
Bent or kinked midpiece, % | 0.3 ± 0.14 | 0.4 ± 0.16 |
Distal droplet, % | 0.9 ± 0.3 | 1.4 ± 0.3 |
Bent tail, % | 0.6 ± 0.2 | 1.3 ± 0.4 |
Coiled tail, % | 0.4 ± 0.1 | 0.6 ± 0.1 |
Other abnormal cells, % | 0.1 ± 0.07 | 0.5 ± 0.32 |