从重庆引进大鳞鲃亲鱼进行了人工繁殖试验及胚胎发育观察.结果表明,注射LHRH-A23.5 μg/kg、HCG 600 IU/kg、DOM 3.5 μg/kg催产效果最佳,水温21~25℃,效应时间18 h,受精率68.0℅,孵化率26.1℅.雌性亲鱼相对产卵量7.7万/kg,卵为灰白色,漂浮性卵,无黏性,卵重360个/g,卵径1.5 mm,吸水后膨胀卵径达4.5 mm.孵化到仔鱼出膜需53~56 h,140 h后开口摄食.%In order to enrich the varieties of aquaculture in Wuhan,Barbus capito as parent fish were introduced from Chongqing. This study investigated the artificial propagation and embryonic development of Barbus capito. The results showed the injection of 3.5 μg/kg LHRH-A2,600 IU/kg HCG and 3.5 μg/kg DOM made better spawning effect. When the water tem-perature between 21~25℃,the response time of oxytocic was 18 h,the fertilization rate of eggs was 68.0℅,and the hatchabili-ty rate was 26.1℅. The relative fecundity of female parent fish was 77 000/kg,the eggs were offwhite,pelagic and non-viscid. The weight of egg was 360 g,the diameter of egg was 1.5 mm,and expanded to 4.5 mm after absorbing water.It took 53~56 h from being fertilized to hatching as larva stage,and took 140 h to initial feeding.
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