[Table/Fig-4]:

Fertilization, and cleavage rates and embryo development to blastocysts of vitrified mouse GV oocytes with and without cumulus cell

Groups	Fertilization (%)	2cell (%)	4cell (%)	8cell (%)	Morula (%)	Blastocyst (%)
Control COC	204(80.76)a	192(75.58)a	177(69.38)a	157(61.58)a	139(54.65)a	117(45.62)a
Control DO	127(57.46)b	113(51.13) b	89 (40.27)b	72 (32.57) b	61(27.60)b	42 (19.04)b
Stepwise COC	77(57.80)c	70(53.19 )c	50(36.50 )c	39(27.35 )c	32(22.20)c	22(16.41)c
Stepwise DO	57(33.72)	49 (28.99)	33(19.52)	19(11.24)	13(7.69)	8(4.73)
Single-step COC	53(45.68)d	44(38.95 )d	32(28.45 )d	22(18.76 )d	16(13.47 )	6(4.84)
Single-step DO	36(23.07)	28(17.94)	13 (8.33)	7 (4.48)	5(3.20)	3(1.92)

a compared to all groups p<0.05; b compared to Stepwise DO and Single-step DO p<0.05; c compared to Stepwise DO, Single-step COC and Single-step DO p<0.05; d compared to Single-step DO p<0.05