Table 2 Advantages and disadvantages of the original migration-sedimentation method according to Tea et al. (1984).
Advantage | Disadvantages |
|---|---|
- usually very clean fraction of highly motile spermatozoa | - the original method is restricted to ejaculates of high sperm count and good motility |
- reactive oxygen species are reduced | - the original method has a very low recovery rate |
- very gentle separation method | Â |
| Â | - special glass or plastic tubes are required |
| Â | - tubes are more expensive and relatively sensitive |
| Â | - for repeated use in IVF, glass and plastic tubes must be sterilized |