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

本年度計畫首先進行虎斑的最適蛋白質和能量比試驗，以魚粉及酪蛋白為蛋白質源，配製8種不同試驗飼料，其蛋白質含量分別為45及52％，每組蛋白質項下再分別添加7％，10％，13％及16％之魚油以及α-澱粉調整能量，並以CMC為黏著劑。飼料能量在不同油脂的添加下分別為330，355，381和407 Kcal / 100g diet。經蓄養完成的虎斑幼魚分別放入圓形 FRP育桶，初重為26.5g，每桶放養4 0尾，三重覆，採流水式，充分打氣。試驗期間鹽度為30psu左右，水溫在28±0.5℃，每日餵食二次（ 08：30；16：30），每兩週測量體重，並清洗試驗桶，試驗結束經統計分析，以較高蛋白質、高能量飼料組所飼養的老虎斑在成長、飼料效率及活存率皆較佳。試驗二進行虎斑對碳水化物之利用試驗：以魚粉及酪蛋白為蛋白質源，配製6種不同試驗飼料，以麵粉為碳水化物來源分別添加5％，10％，15％、20％、25％及30％。其飼育方法如試驗一，養殖試驗6週後，以添加10-15％麵粉組成長較佳

The experiment 1 was conducted to study the optimum protein to energy ratio of juvenile tiger grouper. Using casein and fish meal as protein source were added to the diets in two dietary protein levels (45and 52％) were used along with four lipid concentration of 7, 10, 13, and 16％ (energy levels 330, 355, 381 and 407kcal/100g)at each protein level. The experiment diets were fed for 12 weeks to triplicate groups of tiger grouper (average weight: 26.5g). Weight gain, FCR(feed conversion ratio) and survival rate of fish were better when fish fed higher protein and energy. In experiment 2, wheat flour as carbohydrate source were added to the basal diets ranging from 5-30％ . All six diets were fed for 6 weeks to triplicate groups of tiger grouper ( average initial weight: 67g), the diets containing wheat flour concentration of 10and15％ attained higher weight gain than other groups.