摘要
[目的]研究北移大鲵人工繁殖成功的可能性及大鲵进行异地保护的可行性。[方法]通过温度、营养调控进行亲鲵培育,采用促黄体素释放激素类似物(LHRH-A2)与绒毛膜促性腺激素(HCG)组合对人工驯养的性成熟的北移大鲵进行人工繁殖。[结果]繁殖亲鲵共产卵41468粒,平均催产率83.0%,受精卵总数为24507粒,受精率平均为56.4%,在17.5～19.5℃经35～40d孵化,合计出苗5036尾,受精卵平均孵化率为23.9%,苗种培育30d后共成活4482尾,成活率平均为91.3%。[结论]大鲵可以在北方进行人工繁殖。大鲵的异地保护是可行的。
[Objective]The research aimed to study the artificial propagation possibility of Chinese giant salamander immigrated to the north and the protection feasibility at other place. [Method]The breeding conditions of Chinese giant salamander were controlled by temperature and nourishment,and the combination hormones of LHRH-A2 and HCG were injected into mature Chinese giant salamander immigrated to the north,which had been artificially domesticated in running water pond. [Result]41 468 eggs were obtained and the quantity of fertilized eggs laid by breeding giant salamander was 24 507. The average rates of induced spawning and fertilization was 83. 0% and 56. 4% respectively. The fertilized eggs could be hatched out mostly in 35 -40 days at 17. 5 -19. 5 ℃. In the experiment,5 036 fries were hatched,the average rates of hatching was 23. 9% ,and 4 482 fingerling were reared after nurturing 30 days,the survival rate of fingerlings reached 91. 3%. [Conclusion]Artificial breeding production of Chinese giant salamander could be carried out in northern region. It was feasible to protect Chinese giant salamander at other place.
出处
《安徽农业科学》
CAS
北大核心
2010年第14期7389-7390,7411,共3页
Journal of Anhui Agricultural Sciences
基金
黑龙江水产研究所基本科研业务费专项资金项目(2007H-SYZX-YZ-03)
关键词
北移大鲵
人工繁殖
研究
Chinese giant salamander immigrated to the north
Artificial propagation
Study
