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

德班氏活額蝦是一種色彩艷麗的蝦子，具有高度觀賞價值。為了建立人工繁殖技術，本試驗探討不同的餌料種類、不同的餌料密度、延遲餵食及溫度對初期蝦苗成長及活存的影響。在水溫 27 ± 1 °C下，單以輪蟲餵飼蝦苗，密度 15 隻/ml 組的效果較佳，至第五期蝦苗的活存率為 35 %；單以豐年蝦無節幼蟲餵飼，密度2隻/ml 組的效果較佳，至第五期蝦苗的活存率為 73 %。以輪蟲及豐年蝦混合餵飼，輪蟲密度15隻/ml 混合豐年蝦無節幼蟲密度2隻/ml的餵飼組活存率最佳，至第五期蝦苗的活存率為 88 %。延遲投餌對活額蝦苗活存率有不利的影響，延遲1日蝦苗活存率即有顯著降低，且至第五期蝦苗的時間顯著較長 (p < 0.05)。延遲2日以上蝦苗就無法活存。在溫度試驗上，24 °C 組及27 °C 組時達到第五期蝦苗的活存率最高，27 °C組及30 °C組達到第五期幼苗的時間最短。本次試驗結果顯示：將活額蝦苗飼養在 27 °C 的水溫下，且於孵化後1日內同時餵飼輪蟲及豐年蝦無節幼蟲，成長及存活率最佳。

Different diets, feeding concentrations, starvation conditions, and temperatures were applied to the zoea of dancing shrimp (Rhynchocinetes durbanensis), and obtained the following results. The survival rate was the highest for the 5th-stage zoea when fed a combination of Artemia nauplii at 2/ml and rotifers at 15/ml. The survival rate of zoea was significantly related to the time of feeding after hatching. The survival rate decreased for zoea that was not fed on the first day after hatching. All zoea died within 2 days without feeding. The survival rate was the highest for 5th-stage zoea which had been raised at 24~27 °C. The period for development to 5th-stage zoea was the shortest for larvae which had been raised at 27~30 °C. The optimum rearing conditions were the combined feeding of Artemia nauplii at 2/ml together with rotifers at 15/ml, fed on the first day after hatching at 27 °C.