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Number of embryos transferred, pregnancy rates and number of calves born following transfer of OPS-vitrified embryos or AI.
| Experimental group | No. of single embryo transferred | Pregnancy rate (pregnant/transfer) | No. of calves born |
| IVP-1 | 32 | 9.4% (3/32) | 3 |
| IVP-2 | 28 | 21.4% (6/28) | 5 |
| IVP-3 | 16 | 18.9% (3/16) | 1 |
| Total-IVP | 76 | 15.8% (12/76) | 9 |
| Control-AI | 24 inseminations | 50% (12/24) | 11 |
