摘要
从湖北引进匙吻鲟(Polyodon spathula)水花6万尾,平均全长1.8 cm,平均体重0.023g,苗体活泼健康。将它们分成三组,每组2万尾,分别采用三种不同的方式进行为期50d的精心培育。其结果为:试验A组中鱼苗平均全长达11.7 cm,平均体重为16.127g,成活率为17.6%;试验B组中鱼苗平均全长达14.3 cm,平均体重为18.575g,成活率39.6%;试验C组中鱼苗平均全长达15.5 cm,平均体重为19.213g,成活率59.3%。试验C组采用的方法:在水泥培育池内培育至3.0 cm^4.0 cm后,移入土池继续采用枝角类等浮游动物为饵料培育至平均全长为7.0 cm^8.0 cm后,再采用配合饲料进行转饵驯化的方式,是进行匙吻鲟苗种培育的一条较佳技术路线。
60,000 active Polyodon spathula fries, with the average size of 1.8cm and the average weight of O. 023g, were intro-duced from Hubei province. All of fries were made up of groups A, B, C as 20, 000 for each group. Groups A, B, C were reared by three different ways for 50 days. The results showed that ： the average size of the fish in group A, B, C were respectively 11.7cm, 14.3cm and 15.5cm, at the same time, the average weight of each group were 16. 127g, 18. 575g and 19. 213g. Survival rate of every group were 17.6%, 39. 6% and 59. 3%. Group C was treated as follows： there were not reared in soil pools with feed named Planktonic Cladocera until the average size of them was 3. 0 cm - 4. 0 cm in cement pools, when the average size of them was 7.0 cm-8.0 cm in soil pools, fed with artificial formula feed to make domestication of feed. This method is the best way for seed nursing of Polyodon spathula.
出处
《福建水产》
2008年第4期20-23,共4页
Journal of Fujian Fisheries
