Summary
Frozen storage of rabbit embryos at the 16-cell stage in 2.0 M dimethylsulfoxide (DMSO) in phosphate-buffered saline (PBS) was achieved by a 2-step procedure. After storage for 10 days at−196°C they were revived by rapidly thawing at 500°C/min. On transfer of these embryos to pseudopregnant foster mothers, 50% survived to term. The difference in in vivo survival between frozen-thawed and frozen-thawed-cultured embryos was not significant.
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Acknowledgment. The authors thank the Director for the facilities. VHR is supported by Council of Scientific and Industrial Research (India).
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Rao, V.H., Mongha, I.V., Ansari, M.R. et al. Survival of rabbit embryos after rapid freezing and thawing. Experientia 40, 821–822 (1984). https://doi.org/10.1007/BF01951970
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DOI: https://doi.org/10.1007/BF01951970