. 2019 Feb 7;21(1):51–60. doi: 10.1089/cell.2018.0050

Table 2.

In Vitro Development of Embryos Cloned Using Different Methods

Group	No. of cultured zygotes	No. of cloned oocytes	No. (%) of fused embryos^*	No. (%) ≥2–4 cell embryos^**	No. (%) ≥8–16 cell embryos^**	No. (%) of blastocysts^***
IVF	258	—	—	219 (85.0 ± 1.5)^b	194 (75.4 ± 1.3)^a	80 (31.1 ± 1.1)^a
SCNT	—	558	381 (68.3 ± 1.5)^a	303 (79.5 ± 1.4)^a	148 (39.7 ± 2.1)^b	74 (20.2 ± 1.3)^b
CICT	—	296	243 (82.0 ± 0.3)^b	200 (82.0 ± 1.7)^ab	149 (61.5 ± 1.3)^c	70 (28.9 ± 0.8)^a

Mean ± standard error of the mean.

^{^a–c}

Values with different superscripts in the same column are significantly different (p < 0.05).

^{^*}

Fusion rates were calculated based on the number of injected oocytes.

^{^**}

Cleavage rates were calculated based on the number of fused embryos for SCNT, CICT and based on the number of fertilized zygote for IVF.

^{^***}

Blastocyst development rates were calculated based on the number of fused embryos for SCNT and CICT and based on the number of presumed zygote for IVF.

SCNT, somatic cell nuclear transfer; CICT, cytoplasm injection cloning technology; IVF, in vitro fertilization.