Table 2.
Percentage of normal sperm and proportion of different morphological abnormalities in rhea (Rhea americana) epididymis and vas deferens. Values are expressed as mean ± SEM from 5 adult individuals.
| Epididymis (Left + Right) | Vas deferens (Left + Right) | |
|---|---|---|
| Normal sperm (%) | 75.7 ± 2.0 | 75.4 ± 3.3 |
| Head defects (%) | ||
| Bent head | 2.4 ± 0.5 | 5.1 ± 1.8 |
| Hook-shaped head | 1.2 ± 0.3 | 0.7 ± 0.2 |
| Blunt Head | 0 | 4.0 ± 0 |
| Macrocephalic | 2.2 ± 1.4 | 9.5 ± 9.0 |
| Spermatid-like | 2.0 ± 1.5 | 0.5 ± 0 |
| Midpiece defects (%) | ||
| Bent midpiece | 1.4 ± 0.2 | 2.9 ± 1.5 |
| Cytoplasmic droplets | 2.2 ± 0.8 | 0.5 ± 0 |
| Tail defects (%) | ||
| Bent tail | 11.2 ± 1.2 | 8.3 ± 1.3 |
| Broken tail | 5.2 ± 0.9 a | 2.7 ± 0.8 b |
| No tail | 2.6 ± 0.6 | 5.6 ± 1.3 |
| Two tails | 1.3 ± 0.3 | 1.1 ± 0.3 |
a, b Different letters mean significant difference between the two columns (p < 0.05).