Table 2.

Rates of survival, pronuclei formation and development to morulae and blastocysts of IVM, MII and aged oocytes following ICSI.

	IVM	Ovulated	13 hr Aged
No oocytes injected	195	263	251
No. oocytes survived	91 (47%)a, b, d	149 (57%)a, d	155 (62%)a, b
2 PN	89 (98%)	141 (95%)	145 (94%)
2-cells/survived	72 (79%)a, c	133 (89%)a	139 (90%)c
4-cells/survived	34 (37%)c	122 (82%)c	107 (69%)c
8-cells/survived	16 (18%)a	116 (78%)a	81 (52%)a
No. blastocysts/survived	5 (5%)a	106 (71%)a	62 (40%)a

Similar letters indicate statistical differences between groups of the same developmental stage

^ap < 0.001; ^bp,0.005; ^cp < 0.01; ^dp,0.05