[Objective] The research aimed to provide basic data for the interspecific hybridization utilization of Siniperca species. [Method] The embryonic development and larval,juvenile growth characters of hybrid F, of Siniperca scherzeri ( ♀ ) × S. chuatsi ( ♂ ) were observed. And the effects of different hybridization methods on the early development of hybrid Ft were analyzed. [ Result] The diameter of fertilized egg of hybrid F, was 2.20 ±0.09 mm. Half of fertilized eggs in flowing water at temperature of 18 ～25℃. hatched out after fertilization 67 hours. The whole embryonic development of hybrid F, underwent the cleavage stage (7 hours), blastula stage (8 hours) , gastrula stage (8 hours) , neural stage (4 hours) and organogenesis stage (40 hours). The whole length of newly-hatched larvae of the hybrid F, was 4.12 ±0.12 mm and the average daily growth rate was 1.03 mm from 0 to 43 hatching days. [ Conclusion] The embryonic development of hybrid F, was intermediate to their parents and the growth rate of larva and juvenile was similar to that of its paternal fish.%[目的]为鳜鱼种间杂交利用提供基础资料.[方法]对斑鳜♀×鳜♂杂交一代胚胎发育与仔稚鱼生长特征进行观察,分析不同杂交方式对杂种一代早期生长发育的影响.[结果]杂交F1受精卵卵径为(2.20±0.09)mm,在水温18 ～25℃下流水孵化,杂交F1经历卵裂期(7 h)、囊胚期(8 h)、原肠期(8 h)、神经胚期(4 h)、器官形成期(40h),受精后67h达到半数出膜.杂交F1初孵仔鱼全长为(4.12±0.12)mm,初孵至孵出后43d全长日均增长率为1.03 mm.[结论]斑鳜♀×鳜♂杂交F1胚胎发育介于双亲之间,仔、稚鱼生长速度与父本接近.
展开▼
