封闭式循环系统三文鱼合理养殖密度试验

Trial on optimal stocking density of Salmon in Circulating systam

2012年9-11月在东方海洋开发区珍贵鱼养殖场进行高密度封闭式循环水养殖三文鱼试验。在循环水养殖车间中,挑选同一个系统中的三个养殖池A1;A2;A3,挑选同一批次三文鱼(重500g左右)进行养殖试验。养殖密度分别调整为A1:10kg/m3;A2:14.9kg/m3;A3:19.8kg/m3。经过2个月的养殖,三文鱼个体增长情况分别为:末均重:A1:1.05kg;A2:1.06kg;A3:0.98kg,增重率为A1:83.48%;A2:94.64%;A3:86.01%。存活率为:A1:92.6%;A2:89.98%;A3:89.2%。得出结论在该封闭式循环水养殖系统条件下,养殖密度在15kg/m?左右时鱼增长速度较快,可较大程度提高经济效益。

in September 2012 -- November in the east ocean development zone precious fish farms in high density closed circulating water salmon experiment. In the circulating water aquaculture workshop, choose the same system of three breeding A1; A2; A3, choose the same batch salmon （weight is about 500 g） breeding experiment. The breeding density is adjusted respectively for A1：10 kg/m^3 A2：14.9 kg/m^3 ＇ A3：19.8 kg/m^3 for breeding experiment. After 2 months of breeding, salmon individual growth are respectively, the weight. A1 ： 1.05 kg; A2 ： 1.06 kg; A3： 0.98 kg, weight gain rate forA1：83.48%; A2.94.64%; A3：86.01%. Survival： A1.92.6%; A2.89.98; A3.89.2%. Conclusion in the closed circulating water aquaculture system conditions, breeding density in 15 kg/ m^3 around is relatively appropriate.