Table 1 Rates of pronuclei formation and development to morula and blastocysts of IVM, MII and aged oocytes following IVF.

No. oocytes inseminated

115

151

173

No. oocytes with 2 PN/inseminated

94 (82%)^{a, b}

142 (94%)^a

169 (98%)^b

2 cell embryos/inseminated

89 (77%)^c

135 (89%)^{c, a}

129 (75%)^a

4 cell embryos/inseminated

61 (53%)^a

126 (83%)^{a, b}

98 (57%)^b

8 cell embryos/inseminated

55 (48%)^a

119 (79%)^{a, b}

83 (48%)^b

No. blastocysts/inseminated

44 (38%)^a

114 (75%)^{a, b}

82 (47%)^b