Table 6. Embryo development of oocytes matured at 38.5 or 41.0°C ¹.

IVM temperature (°C)	Cleavage stage development				Blastocyst development
	(72 h post-IVF)				(204 to 216 h post-IVF)
	Cleaved	2-Cell 3	4-Cell 3	8 to 16-Cell 3	Percent of PZ	Stage	Quality
	(%)	(%)	(%)	(%)
38.5	70.05	8.72	22.02 b	71.00 a	29.73 a	6.80	1.51
41.0	69.87	9.22	27.08 a	63.50 b	19.91 b	6.89	1.59
Pooled SEM	2.58	1.44	1.38	2.42	2.26	0.09	0.07
P-value	> 0.05	> 0.05	< 0.05	< 0.05	< 0.001	> 0.05	> 0.05

IVM, in vitro maturation; PZ, presumptive zygote. ¹ First 12 h of maturation followed by 38.5°C thereafter. ² Number of presumptive zygotes evaluated for cleavage. ³ Relative to proportion of embryos cleaved. ⁴ Number of presumptive zygotes evaluated for blastocyst development only (a different subset than those for cleavage). ^ab Means differ within a column (P < 0.05).