Figure 1. Development of PA embryos from control and rapamycin groups. (A) The status of PA embryos in both groups at 0 h, 24 h, 48 h, and 108 h of culture. Scale bar, 75 μm. The comparison of (B) activation rates and (C) cleavage rates (D) blastocyst formation rates of PA embryos from both groups (n = 59). All data were expressed as mean ± SEM from three independent experiments. Abbreviations: Con: control; Rapa: rapamycin. *P < 0.05, **P < 0.01.