Method of constructing offspring originating from frozen sperm stem cell

摘要

The present invention provides a method of producing offspring originating in a spermatogonial stem cell of a donor animal which comprises generating spermatozoa in the reproductive organ of a male recipient animal with the use of frozen spermatogonial stem cells originating in the donor animal to give a male individual for reproduction, and then producing animal individual originating in the spermatogonial stem cell of the donor using the said individual for reproduction.