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1997年 4～ 5月 ,引进俄罗斯鲟 (Acipensergueldenstaedti)发眼卵 5 0 0万粒 ,利用孵化器流水孵化 ,水温 17～18℃ ,经 35～ 6 0h ,获仔鱼 2 10万尾 ,孵化率 42 % ;稚鱼采取流水培育 ,投喂卤虫无节幼体、水丝蚓和少量配合饲料 ,水温 2 0～ 2 1℃ ,经 80d培养 ,平均体重 5 g ,获稚鱼 15 2万尾 ,成活率 72 4% ;幼鱼采取循环水培育 ,投喂水丝蚓、卤虫成体和配合饵料 ,经 2 70d培育 ,幼鱼平均体重 2 0 0g ,存池数 73万尾 ,成活率 48%。
From April to May 1997, Acipensergueldenstaedti was introduced into Zhejiang province with 5.0 million eggs. The eggs were hatched in running water with an incubator at a temperature of 17-18 ° C. After 35-60 hours, 21,000 larvae were obtained and the hatching rate was 42% The larvae were fed with water and fed with artemia nauplii, water flies and small amount of compound feed. The water temperature was 20 ~ 21 ℃. After 80 days of culture, the average body weight was 5 g and the juvenile fish was 15 2 000, the survival rate 72 4%. The juveniles were fed with recirculating water and fed with water worm, artemia and bait. After larvae were cultured for 2 70 days, the average body weight of juvenile fish was 200 g and the number of reservoirs was 730,000 with a survival rate of 48%.