Figure 4

The effect of ABA on preimplantation development A: Cell survival of the embryos cultured in the presence or absence of ABA for 51 or 75 h after fertilization. B and C: Absence of compaction of the embryos cultured in the presence of ABA (B) in contrast to controls (C) 75 h after fertilization. D: Preimplantation development of embryos cultured in vitro for various periods in the presence of ABA. The horizontal black line shows the presence of the inhibitor in the culture medium for the time length indicated on the left. Numbers on the right side indicate blastocysts/total number of embryos, (% of blastocyst formation); n indicates the duplicate experiments.