摘要 |
The present invention provides a method of cryopreserving sperm that have be en selected for a specific characteristic. In a preferred embodiment, the metho d is employed to freeze sex-selected sperm. Although the cryopreservation meth od of the invention can be used to freeze sperm selected by any number of selection methods, selection using flow cytometry is preferred. The present invention also provides a frozen sperm sample that has been selected for a particular characteristic, such as sex-type. In preferred embodiments, the frozen sperm sample includes mammalian sperm, such as, for example, human, bovine, equine, porcine, ovine, elk, or bison sperm. The frozen selected spe rm sample can be used in a variety of applications. In particular, the sample c an be thawed and used for fertilization. Accordingly, the invention also includ es a method of using the frozen selected sperm sample for artificial inseminati on or in vitro fertilization.
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