Table
- DNA integrity and motility of human spermatozoa after standard slow freezing versus cryoprotectant-free vitrification

Table I. Characteristics of fresh ejaculated and swim-up-prepared spermatozoa before cryopreservation

Concentration after ejaculation (x10⁶l/ml)	Morphology after ejaculation/liquefying (%)	Motility after ejaculation/liquefying (%)	Concentration after swim-up (x10⁶/ml)	Motility after swim-up without cryoprotectants (%)	Motility after swim-up with cryoprotectants (%)

107.7 ± 10.9	10.7 ± 1.6	51.7 ± 6.1	44.8 ± 7.8	89.5 ± 7.1^a	77.5 ± 8.9^b

^a,bThe differences between the parameters (motility after swim-up without cryoprotectants) and (motility after swim up with cryoprotectants) was significant (P

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Table - DNA integrity and motility of human spermatozoa after standard slow freezing versus cryoprotectant-free vitrification

Table
- DNA integrity and motility of human spermatozoa after standard slow freezing versus cryoprotectant-free vitrification