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ISSN : 1225-3480
With the purpose to estimate the possibility of short-term storage and cryopreservation for sperm of Charonia sauliae, which is a potential preparation for its artificial reproduction and further research, in this study, protocols for short-term storage and cryopreservation of trumpet shell sperm was optimized. The effects of different immobilizing solutions, dilution ratios were estimated for short-term storage. And the effects of different cryoprotectant extenders and freezing rates were estimated for cryopreservation in terms of motility and survival of sperm. The results indicated that the artificial sea water of 350 mOsmol/kg is a better immobilizing solution and sperm which was diluted at a ratio of 1:1 (v/v) had higher motility and survival rate during short-term storage. The effect of 5% dimethyl sulfoxide was significantly better than those of other cryoprotectant extenders. And a freezing rate of -20℃ min-1 showed better effect than other freezing rates. In conclusion, this study optimized some key factors of the short-term and cryopreservation of C. sauliae sperm, which can provide valuable data for germplasm conservation and artificial propagation of C. sauliae.
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