Table 1.

Effect of heat stress (HS) on blastocyst development in vitro.

HS (°C)	Exposure Time (h)	Cleavage Rate (%)	Blastocyst Rate (%)	Reference
38.5 (control, in vitro)	22–24	86	41	[60]
40 (in vitro)	12	60	16	[57]
40.5 (in vitro)	20	75.7	18.6	[61]
41 (in vitro)	12	70	18	[59]
41 (in vitro)	12	60	13	[57]
41 (in vitro)	12	65	15	[58]
36 (in vivo, ovum pick-up)	22 May–20 July	45	6	[62]