Table 4.

Effect of vitrification containers on the developmental competence and apoptosis rate of mouse blastocysts after vitrification and warming

Values are presented as number (%) or mean±SD. Survived embryos, re-expanded blastocysts, and hatching blastocysts: chi-square test.

No. of total cells, No. of apoptotic cells: analysis of variance (Tukey's test); EM, electron microscopy; TPS, thin plastic strip.

^aAfter warming, the embryos were cultured in vitro for 3 hours, and the re-expansion rate of the embryos was assessed, ^bAfter warming, the embryos were cultured in vitro for 24 hours, and the hatching rate of the embryos was assessed, ^a,bValues with different superscripts within columns are significant different at p<0.05.