Figure 2. Effect of melatonin on the development of EB1-exposed embryos. (A) blastocyst (× 40). (B) cleavage rate and blastocyst rate. (C) blastocyst cell number (× 200). (D) average blastocyst cell number. CON, the control group. EB1, embryos treated with EB1. MT, embryos treated with melatonin. ME, embryos treated with both melatonin and EB1. a-dValues for a given group in columns with different superscripts differ significantly (p < 0.05).