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  • Title: Comparison of three cryoprotective solutions for human semen.
    Author: Peek JC, Gilchrist SJ, Kelso CM, Quinn PJ.
    Journal: Clin Reprod Fertil; 1982 Dec; 1(4):301-5. PubMed ID: 6892336.
    Abstract:
    Three media for human semen were tested--(1) HAMS F10 supplemented with fructose, glycine and glycerol (MHAMS), (2) another chemically defined medium, but specifically designed for human semen (HSPM) and (3) medium containing egg yolk (EYCM). Twenty ejaculates of donor quality were divided into three aliquots, each aliquot was mixed with a different medium, the solutions were vapour frozen, and stored at -196 degrees C. Motility and quality of motility were measured 0.5 h and 3 h after thawing. Average cryosurvivals 0.5 h after thawing for MHAMS, HSPM and EYCM were 44.1 (s.d. = 17.0)%, 56.0 (s.d. = 15.3)% and 66.0 (s.d. = 10.8)%, respectively; the proportions of ejaculates with cryosurvival below 50% were 11/20, 5/20 and 1/20 respectively. The results indicated that the EYCM medium had clear advantages over other cryoprotective solutions for use in a spermatozoa freezing programme.
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