Classification of Recovered Oocytes.

Classification of Recovered Oocytes.
Classification of oocytes after recovery. A. Grade-1 oocyte. The oocyte is surrounded by many layers of cumulus cells. B. Grade-2 oocyte. The oocyte is irregularly surrounded by several layers of cumulus cells. C. Grade-3 oocyte. The oocyte is surrounded by few layers of cumulus cells. D. Grade-4 oocyte. The oocyte is incompletely surrounded by a few layers of cumulus cells. Part of the oocyte is denuded.

Misra AK (2005)