PENGARUH KRIOPROTEKTAN DIMETIL SULFOKSIDA DOSIS BERBEDA DALAM EKSTENDER MADU TERHADAP KUALITAS SPERMA IKAN BELIDA SELAMA MASA PENYIMPANAN

Cryoprotectant plays a role in saving biological material during cryopreservation. Dimethyl sulfoxide (DMSO) as a cryoprotectant has the ability to quickly penetrate into the cell at equilibration and leave the cell at thawing procedure. This study aims to determine the best dose of DSMO in honey extender to the characteristics of the featherback Fish spermatozoa cells in the cryopreservation process. This research was conducted at the Laboratory of Balai Pembibitan dan Hijauan Pakan Ternak (BPHPT) Sembawa from March to November 2020. The test fish were obtained from catches from nature, then reared for 4 months to get the maximum level of gonad maturity. Sperm cell retrieval is carried out by stripping, the stripping process is carried out by massaging the belly of the fish in a circular manner. The results showed that at storage time of 28 days, P3 gave the best results on motility (score 3), and the viability value was 48,93%, higher than Control, P1 and P2. In addition, the treatment did not show any abnormalities that occurred in the featherback fish sperm.