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培育质优量足的苗种是搞好养殖生产的前提。由于鱼苗细小幼嫩,活动能力弱,摄食范围窄,对环境条件的变化十分敏感,因此,鱼苗培育必须抓住关键技术环节,创造良好的池塘生态条件,提高鱼苗成活率,促进鱼苗快速生长。1彻底清塘。鱼苗池呈长方形、面积1—4亩,池堤牢固不漏水,池底平坦少淤泥,水源充足,水质清洁、注排水方便。每年冬季或早春排水干池,修整池塘,保持淤泥6—10cm,经过冰冻日晒,待鱼苗下塘前10—15天,亩施生石灰50—75公斤清塘消毒;3—5天后,注水50—80cm,浅水下塘。
Nurturing high quality enough seed is a good premise of farming and production. Due to the small and young fry, weak activity ability and narrow feeding range, it is very sensitive to the change of environmental conditions. Therefore, fry cultivation must seize the key technical aspects, create good pond ecological conditions, improve the survival rate of fry and promote the rapid growth of fry. 1 completely clear pond. Fry ponds were rectangular, an area of 1-4 acres, the pond embankment firm watertight, bottom flat and less mud, adequate water, clean water, easy drainage note. Every winter or early spring dry drainage pool, trimming the pond, keep the silt 6-10cm, after the sun and frozen until the fish fry pond 10-15 days, 50-75 kg lime Mushu clear pond disinfection; 3-5 days after the water 50 -80cm, Shallow pond.