Superovulation was achieved by intraperitoneal injection of 25 μL of pregnant mare serum gonadotropin, followed 72 h later by administration of 25 μL of human chorionic gonadotropin
Superovulation wasachieved by intraperitoneal injection of 25 μL of pregnantmare serum gonadotropin, followed 72 h later by administrationof 25 μL of human chorionic gonadotropin