Skip to main content

Table 2 Advantages and disadvantages of the original migration-sedimentation method according to Tea et al. (1984).

From: Sperm preparation for ART

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  
  - special glass or plastic tubes are required
  - tubes are more expensive and relatively sensitive
  - for repeated use in IVF, glass and plastic tubes must be sterilized