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Effect of BPA on the blastocyst development and hatching on D4 of pregnancy. (A) The control group, (B) 200 mg/kg/day BPA group, (C) 400 mg/kg/day BPA group, (D) 600 mg/kg/day BPA group, and (E) 800 mg/kg/day BPA group. Scale = 100 μm. (F) Blastocyst development rate = number of blastocysts/total number of embryos from the uterus on D4 × 100. (G) Hatching rate = number of hatched blastocysts/total number of blastocysts from the uterus on D4 × 100. Number of embryos: N = 43 to 64.
