Table 1.
Time-lapse morphokinetic parameters evaluated to assess key embryo developmental events used in the current study
| Parameter | Description |
|---|---|
| Pn_t1 | Time of pronuclei formation |
| NEBD | Nuclear envelope break down |
| Cytokinesis | Cytokinesis |
| t2 | Time of cleavage to a 2-cell embryo |
| t3 | Time of cleavage to a 3-cell embryo |
| t4 | Time of cleavage to a 4-cell embryo |
| t5 | Time of cleavage to a 5-cell embryo |
| t6 | Time of cleavage to a 6-cell embryo |
| t7 | Time of cleavage to a 7-cell embryo |
| t8 | Time of cleavage to a 8-cell embryo |
| tM | Time to full compaction |
| tSB | Time to the first signs of blastulation |
| tB | Time to full blastocyst |
| tEB | Time to expanded blastocyst |
| tHB | Time to hatching blastocyst |
| s1 | Time between NEBD and subsequent division to 2-cells |
| s2 | Time between division to 3-cells and subsequent division to 4-cells |
| s3 | Time between division to 5-cells and subsequent division to 8-cells |
| cc2 | Duration of the second cell cycle |
| cc3 | Duration of the third cell cycle |