عنوان مقاله [English]
Successful fish embryo cryopreservation has not been achieved.
Cryopreservation of fish embryos requires an optimal concentration of
cryoprotectants inside all embryo compartments. In researches on cryopreservation
of embryo, information on relative toxicities of cryoprotectants is of key
importance. Cryoprotectants are less toxic at lower temperatures
can neutralize the toxicity of other cryoprotectants. Generally the hatching rate
decrease with concentration and expose time. Reduce hatch may be a result of
osmotic shock, ionic imbalance or consequence of cryoprotectant toxicity. As the
progress of embryonic development, sensitivity of embryos decreases than
different concentration of cryoprotectants.