Group

MEAN ± SD*

Total Oocytes

Culture Time

24 hours

48 hours

n

Mature n (%)

n

Mature n (%)

Prepubertal

29 ± 25^a

586

319

102 (32)^1a

267

129 (48)^2a

Follicular

20 ± 15ª

283

170

42 (25)^1a

113

52 (46)^2a

Pregnant

17 ± 9^b

203

95

29 (31)^1a

108

46 (43)^1a

Anestrus

17 ± 13^b

333

205

66 (32)^1a

128

57 (45)^1a

Total

13 ± 8

1405

789

239 (30)^a

616

284 (46)^a