Fig. 4

The male fertility of prenatal BPA-exposed offspring by IVF analysis. Sperm binding ability was displayed as the average number of sperm binding with one oocyte, and the arrow indicated the binding sperm. The two-cell stage rate was displayed as the number of two-cell embryos / the number of pronucleus formation oocyte. Eight-cell stage rate was displayed as the eight-cell embryos /the number of the two cell embryos. .Each bar represented 100 μm. The data were analyzed by t-test, p < 0.05 was considered significance.