農業部-水產試驗所全球資訊網農業部-水產試驗所全球資訊網

本試驗利用15個1.8噸FRP水槽進行石斑魚在不同密度與換水率的成長試驗，各三重複，養殖期間共五個月。10、20、30三種放養密度(#/m2)的結果顯示：平均增重依序為175g、125g、85g，活存率皆為100％，換肉率分別為3.56、2.32、2.26，有此可知養殖密度越高其成長的速度就越慢、換肉率越好、活存率則不影響。10、20、30三種換水率(kL water/kg feed) 的結果顯示：平均增重依序為106g、126g、150g，活存率皆為100％，換肉率分別為2.94、2.29、1.93，有此可知換水率越高其成長的速度就快、換肉率就越好、活存率則不影響。

The experiments used 15 FRP tanks (each with 2 m2 and 1.8KL) to raise groupers for five months to compare their growth and survival under different densities and water changing rates, with three replicates for each experiment group. In three stocking densities (10, 20 and 30 #/m2), results showed average weight gain were, 175g, 125g and 85g, FCR were 3.56, 2.32 and 2.26, respectively; while survival rates were 100% in all groups. In three water changing rates (10, 20 and 30 kL water/kg feed), results showed average weight gain were 106g, and 126g, and 150g, FCR were 2.94, 2.29 and 1.93, respectively; while survival rates were 100% in all groups.