Control group Experimental group
Oocytes vitrified 40 40
Oocytes survived just after thawing 25 (62.5%)* 24 (60%)*
Oocytes survived after 48 hours of incubation 22 (55%)** 18 (45%)**
Table 1: Survival of rat oocytes after vitrification and thawing with the protocol of MediCult (Origio, Denmark) (control group) or the experimental protocol (experimental group). *: p=0.18, **: p=0.008.