Table Π.

The number of oocytes and percentages of fertilized oocytes and embryos (two- cell and blastocyst) of mice after oral exposure with 100 mg/kg TiO₂NP for 5 wk

Groups	Oocytes	Fertilized ooocytes	Two cells	Blastocysts	Arrest	Arrest type I	Arrest type II	Arrest type III
Control	271 a	258 (95.2) b	234 (90.7) a	155 (60.08)a	103 (39.9) a	3 (0.78) a	7 (2.71) a	94 (36.43) b
TiO2 NPS	194	173 (89.17)	102 (52.95)	37 (21.39)	136 (78.6)	34 (19.65)	26 (15.03)	76 (43.93)

Data of oocytes presented as n and the rest presented as n (%)

2 proportional test (n=10)

TiO₂NP: Titanium dioxide nanoparticle

a Significantly different from the control (p<0.001)

b Significantly different from the control (p<0.05)