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鳜鱼是淡水珍贵鱼类之一 ,其肉质鲜嫩 ,少刺味美 ,脂肪含量较低 ,为鱼中上品、宴席佳肴。1 鱼苗培育从鱼苗出膜后 3~ 4天开始 ,经 2 0天左右 ,把鱼苗培育成体长 3cm、体重约 0 .5 g的鱼种。此时抗病力增强、成活率高达 90 %以上 ,适合成鱼塘放养。1.1 严格清池消毒 养殖池?
Anchovy is one of the freshwater rare fish, its fresh meat, less pungent beauty, lower fat content for the fish top grade, feast dishes. 1 fry culture from the fry out of the membrane after 3 to 4 days, after about 20 days, the fry grow into body length 3cm, weighing about 0 .5 g species. Disease resistance at this time increased survival rate as high as 90%, suitable for fish pond stocking. 1.1 strict Qingchi disinfection ponds?