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Comment :

Type  MGI:General Description  reduction of in vitro fertilizing capacity of mutant sperm is less severe on a CD-1 genetic background than on a mixed 129 x C57BL/6 background in vitro fertilizing capacity of mutant sperm isolated from 129 x C57BL/6 males is significantly lower than that of background-matched wild-type sperm (44% vs 76%, respectively); however, a comparable % of fertilized embryos develop to the blastocyst stage (88% vs 91%, respectively) in vitro fertilizing capacity of mutant sperm isolated from CD-1 males is also lower than that of CD-1 wild-type sperm (73% vs 93%, respectively); again, a comparable % of fertilized embryos develop to the blastocyst stage (88% vs 90%, respectively)