Table II. Development, cell number and ICM ratio of clone aggregates.

Embryo	4-cell (n)	Aggregates (n)	Blastocysts (n) (%)	Total cells (mean ± SEM) (n)	Cells range (n)	ICM cells (n)	ICM/(ICM + TE)
1X clone	262	n.a.	65 (25)	42 ± 2.3 (51)a	22–87	18	0.44
2X clone	786	393	171 (44)	50 ± 1.7 (84)b	38–97	23	0.45
3X clone	504	168	91 (54)	62 ± 2.8 (62)c	37–113	33	0.53
Fertilized	60	n.a.	57 (95)	120 ± 5.2 (30)d	33–171	56	0.47

Values within the same column not sharing a common superscript letter are significantly different (P < 0.05).

n.a., not applicable.