Table 1.
Morphology of canine spermatozoa retrieved from different epididymal regions
| Spermatozoa | Caput | Corpus | Cauda | ||
|---|---|---|---|---|---|
| Normal |
|
|
24.7 ± 11.9a |
39.0 ± 13.8b |
50.5 ± 13.3b |
| Abnormal |
HEAD |
pear-shaped |
2.0 ± 6.9 |
3.2 ± 9.6 |
3.6 ± 12.7 |
| small |
0.2 ± 0.6 |
0.2 ± 0.6 |
0.2 ± 0.6 |
||
| large |
0.1 ± 0.3 |
0 |
0 |
||
| amorphous |
0.2 ± 0.4 |
0.2 ± 0.4 |
0 |
||
|
Total abnormalities |
2.5 ± 6.8 |
3.5 ± 9.5 |
3.8 ± 12.7 |
||
| NECK/MIDPIECE |
bent neck |
4.8 ± 4.0 |
4.7 ± 2.5 |
6.2 ± 3.5 |
|
| bent midpiece |
1.9 ± 1.5 |
1.4 ± 2.1 |
2.2 ± 1.7 |
||
| thick midpiece |
0.4 ± 0.8 |
0.2 ± 0.6 |
0.2 ± 0.4 |
||
|
Total abnormalities |
7.1 ± 5.0 |
6.3 ± 4.0 |
8.5 ± 4.7 |
||
| TAIL |
single bent |
15.1 ± 7.5a |
33.8 ± 11.8b |
21.6 ± 8.6a |
|
| coiled |
11.0 ± 11.0 |
6.2 ± 5.9 |
7.4 ± 7.3 |
||
|
Total abnormalities |
26.2 ± 12.5a |
40.1 ± 11.1b |
29.0 ± 13.6a |
||
| Immature | CYTOPLASMIC DROPLET | proximal |
44.8 ± 19.5a |
8.9 ±6.8b |
3.6 ± 3.9b |
| distal |
4.7 ± 6.8a |
20.0 ± 10.4b |
11.4 ± 9.0a |
||
| Total immature | 49.6 ± 20.1a | 28.9 ± 11.9b | 15.0 ± 11.0c | ||
Data are percentages, presented as mean ± SD.
Different superscripts within rows (abc) indicate significant differences (P<0.05).