[ Objective] The cold shock method was used to induce diploid gynogenesis of Silurus astus. [ Mthod ] The Silurus astus sperms were irradiated by ultraviolet, then conducted for fertilization. The different cold shock...[ Objective] The cold shock method was used to induce diploid gynogenesis of Silurus astus. [ Mthod ] The Silurus astus sperms were irradiated by ultraviolet, then conducted for fertilization. The different cold shock starting time and duration were set to observe diploid gynogenesis of Silurus astus. [ Result] Under such inducing condition that ultraviolet irradiated 15 min,cold shock started 5 rain after fertilization, and cold shock duartion was 40 rain,the survival rate of diploid Silurus astus reached the highest(8.5% ). [ Conclusion] The experiment laid foundation for culturing new excellent Silurus astus variety and accumulated original files tor further study of gynogenesis development mechanism.展开更多
基金the Key Technology Research (0324030026)Development Program of Henan Province and Key Programs of Zoology of Henan Province~~
文摘[ Objective] The cold shock method was used to induce diploid gynogenesis of Silurus astus. [ Mthod ] The Silurus astus sperms were irradiated by ultraviolet, then conducted for fertilization. The different cold shock starting time and duration were set to observe diploid gynogenesis of Silurus astus. [ Result] Under such inducing condition that ultraviolet irradiated 15 min,cold shock started 5 rain after fertilization, and cold shock duartion was 40 rain,the survival rate of diploid Silurus astus reached the highest(8.5% ). [ Conclusion] The experiment laid foundation for culturing new excellent Silurus astus variety and accumulated original files tor further study of gynogenesis development mechanism.