Fig. 1

Isorhamnetin rescued nuclear maturation of ZEA exposed porcine oocytes. Oocytes were cultured with different concentrations ZEA (3, 5, 8, and 10 μmol/L) for 44 h with or without various concentrations of isorhamnetin (5, 10, 20 and 30 μmol/L). A Representative images of nuclear maturation treated with different concentrations of ZEA. White arrows indicate mature oocytes. B Effects of different concentrations of isorhamnetin on nuclear maturation of 5 μmol/L ZEA-damaged oocytes. C The polar extrusion rate of different ZEA treatment groups was recorded. D Percentage of polar extrusion treated with different concentrations of isorhamnetin and ZEA (5 μmol/L). E Structure of isorhamnetin. Various letters (P < 0.05) designate significant differences. Data are presented by average ± SEM