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2001年6月27日至11月28日在江苏省南京市进行集约化流水养殖长吻鱼危鱼种试验。从四川省引进长吻鱼危鱼苗36000尾,全长为3.9±0.5cm,体重为0.97±0.12g,分养于6个面积均为200m2的圆角长方形水泥池中。养殖期间的水温15～33℃,pH变幅为7.2～7.6,溶氧高于6.0mg/L。投喂频率为3次/d,早、中、晚分别投日粮的35%、25%、40%,以30min内吃完为限,每5d调整一次投喂量。经过5个月的生长,长吻鱼危体重达110.3±12.5g,成活率为92.4%,特定生长率平均为3.1%,生长效率为47.6%,饲料系数为2.1。
June 27, 2001 to November 28 in Nanjing, Jiangsu Province, intensive water-fed long-legged fish breeding fish test. A total of 36,000 fish were introduced from Sichuan Province. The total length was 3.9 ± 0.5cm and the weight was 0.97 ± 0.12g. The fish were sub-housed in a rectangle of rectangular rectangle with 200m2 area. Aquaculture during the water temperature 15 ~ 33 ℃, pH range of 7.2 to 7.6, dissolved oxygen higher than 6.0mg / L. Feeding frequency of 3 times / d, early, middle and late, respectively, cast ration 35%, 25%, 40%, within 30min to eat, adjust the ration every 5d. After 5 months of growth, the dangerous body weight of long-legged fish reached 110.3 ± 12.5g, the survival rate was 92.4%, the specific growth rate was 3.1% on average, the growth efficiency was 47.6% and the feed coefficient was 2.1.