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Updated: Aug 11, 2026

11:01
A High-Throughput Method For Zebrafish Sperm Cryopreservation and In Vitro Fertilization
Published on: July 6, 2009
Live birth from a zygote cryopreserved for 8 years
K J Go1, S L Corson, F R Batzer
1Pennsylvania Reproductive Associates, Pennsylvania Hospital, Department of Obstetrics and Gynecology, Philadelphia 19107, USA.
Human Reproduction (Oxford, England)
|November 6, 1998
Abstract:
After a cryopreservation period of 8 years, four zygotes were thawed and transferred to the patient's uterine cavity. A singleton pregnancy resulted in the delivery of a normal male. This case report offers evidence that long terms of cryopreservation are consistent with full developmental potential post-thaw, and encourages further examination of imposing limits on length of storage of frozen concepti.

