Table 2
Comparison of Hanwoo embryos developed in serum-free culture medium and culture medium with serum after in vitro fertilization

In vitro culture medium	No. of oocytes cultured	No. (%*) of embryos developed to
		2-cell	Blastocyst	Hatched blsatocyst
TCM-199
+10 % FBS	226	178(86.7)	28(12.4)a	12(5.3)a
IVMD 101	224	208(92.9)	86(38.4)b	76(33.9)b
IVD 101	284	256(90.1)	92(32.4)b	82(28.6) b