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Comparative studies with six extenders for sperm cryopreservation in the cynomolgus monkey ( Macaca fascicularis ) and rhesus monkey ( Macaca mulatta )
Author(s) -
Li Yahui,
Cai Kejun,
Li Jian,
Dinnyes Andras,
Ji Weizhi
Publication year - 2006
Publication title -
american journal of primatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 81
eISSN - 1098-2345
pISSN - 0275-2565
DOI - 10.1002/ajp.20205
Subject(s) - cryopreservation , motility , membrane integrity , andrology , sperm , sperm motility , biology , glycerol , semen , anatomy , membrane , medicine , embryo , biochemistry , microbiology and biotechnology
Ejaculated spermatozoa from cynomolgus monkeys and rhesus monkeys were frozen in straws with six different extenders (TTE, DM, mDM, LG‐DM, G‐DM, and TCG) containing glycerol. Sperm motility and head membrane and acrosomal integrity were evaluated after freezing and thawing, and the cryoprotective effects were compared among the extenders and the two species studied. The results showed that sperm motility and motility recovery with the six extenders were comparable for the cynomolgus and rhesus monkeys. There was no significant difference in sperm motility and head membrane integrity among the six extenders in either the cynomolgus or rhesus monkeys ( P >0.05). However, a slightly but statistically lower percentage of acrosomal integrity was found with TCG in both species compared to the other extenders ( P <0.05). These findings demonstrate that TTE, DM, mDM, LG‐DM, G‐DM, and TCG are equally suitable extenders for the cryopreservation of spermatozoa from cynomolgus and rhesus monkeys. Am. J. Primatol. 68:39–49, © 2006 Wiley‐Liss, Inc.