Recovered oocytes

Oocytes with

cumulus

expansion

Oocytes with

extrusion of the

first polar corpuscle

Oocytes with

extrusion of the second

polar corpuscle IVF

341 AFF

(22 hours)

63.92%

(218)

72.01%

(157)

62.38%

(136)

320 WFF

(22 hours)

59.68%

(191)

67.53%

(129)

53.40%

(102)

356 AFF

(26 hours)

92.9%

(331)

92.1%

(305)

79.45%

(263)

323 WFF

(26 hours)

71.82%

(232)

77.15%

(179)

65.08%

(151)