Table 3. Sex ratio of transferred embryos by season in Hanwoo cows

No. of recipients Sex ratio of calves (%)
Pregnant Aborted (%) Fresh Frozen Male Female
Spring (February to April) 3/9 (33.3) 0 (0.0) 3/7 (42.9) 0/2 (0.0) 2/3 (66.7) 1/3 (33.3)
Summer (May to August) 108/194 (55.67) 16 (14.8) 49/82 (59.8) 59/112 (52.7) 37/92 (40.2) 55/92 (59.8)
Autumn (September to November) 47/89 (52.8) 16 (34.0) 14/27 (51.9) 33/62 (53.2) 14/31 (54.8) 14/31 (45.2)
Winter (December to January) 3/5 (60.0) 0 (0.0) NA 3/5 (60.0) 1/3 (33.3) 2/3 (66.7)
NA; not applicable.