Protocol to Count Cell Number of Preimplantation Embryos using Nuclear Staining with Hoechst 33342 or DAPI. Includes: Preparation of Embryos; Preparation of Hoechst 33342 dye; Preparation of DAPI; Staining the Embryo; Mounting Embryos to Slides; What to Do When There are Too Many Cells to Count.

Protocol: Protocol to Count Cell Number of Preimplantation Embryos