Figure 3. Effect of melatonin on nuclear remodeling in EB1-exposed embryos during the first cell cycle. (A) embryo nuclear morphology (× 400). (B) the percentages of embryo nuclear status. CON, the control group. EB1, embryos treated with EB1. MT, embryos treated with melatonin. ME, embryos treated with both melatonin and EB1. a-dPercentages for a given group in columns with different superscripts differ significantly (p < 0.05).