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本文总结了1988年6月—1991年7月三角鲂苗种培育试验,并根据苗种阶段性生物学特性,提出了苗种培育时应注意的技术环节。试验中,鱼苗培育采用3种不同的放养密度:12.5万尾/亩、10.9万尾/亩、11.1万尾/亩,经24—29天的饲养,分获夏花鱼种8.25万尾/亩、4.72万尾/亩、8.89万尾/亩,其成活率分别为50%、43.3％、80%;大规格鱼种培育的放养密度为0.5万尾/亩,经94天饲养,获三角鲂215kg/亩,鱼种平均全长15.8cm,尾均重44.8g,成活率90％.饵料系数:精饲料1.74,青饲料1.62。
This paper summarizes the breeding trials of the C. chinensis from June 1988 to July 1991, and puts forward the technical aspects that should be paid attention to when cultivating the seed according to the biological characteristics of the stages of the seed. In the experiment, three different stocking densities were used for fry culture: 125 000 / mu, 109 000 / mu and 111 000 / mu. After 24-29 days’ feeding, 89.25% of summer flower species / mu , 47,200 / mu, 88,900 / mu, and their survival rates were 50%, 43.3% and 80% respectively. The stocking density of large-scale fingerlings was 0.5 000 / mu. After 94 days of feeding, 215kg / mu, the average length of fish species is 15.8cm, the average weight is 44.8g, the survival rate is 90% .Fasting coefficient: 1.74 for fine feed and 1.62 for green feed.