This study was conducted to investigate the effects of medium and cumulus cell on in vitro fertilization of porcine follicular oocytes. The results obtained are as follows ;
1. The normal fertilization rates of in vitro matured follicular oocytes cou...
This study was conducted to investigate the effects of medium and cumulus cell on in vitro fertilization of porcine follicular oocytes. The results obtained are as follows ;
1. The normal fertilization rates of in vitro matured follicular oocytes coultured in BO, mTALP and TCM-HEPES medium were 14.0~24.3%, 30.8~32.7% and 21.4~23.9%, respectively. These data indicated that the optimal medium for fertilization on porcine oocytes in vitro was the mTALP medium.
2. The normal fertilization rates of epididymal sperm were 24.3%(BO), 30.8%(mTALP) and 23.9%(TCM-HEPES), and those of ejaculated sperm were 14.0%(BO), 32.7%(mTALP) and 21.4%(TCM-HEPES).
3. The sperm penetration rates of cumulus-enclosed and cumulus-free oocytes on in vitro feritilization were 54.0% and 72.0%. The normal fertilization rates of cumulus-enclosed and cumulus-free oocytes were 11.9% and 21.5%. The normal fertilization rate of cumulus-enclosed oocytes was significantly(P<0.05) higher than that of cumulus-free oocytes.