此研究利用大腸桿菌生產吳郭魚的重
組類胰島素成長因子，以飼料添加的方
式，飼養成長遲緩之笛鯛類，探討成長促
進的效果。以魚粉為主要蛋白源添加
0,0.5,1.0,2.5 及5.0%的含吳郭魚重組類胰
島素成長因子的乾燥E. coli 飼養赤鰭笛鯛
六週後以增重率及飼料效率評估成長效
果，結果最適添加量為0.5%。利用最適添
加量0.5%與無添加評估持續或間斷添加對
赤鰭笛鯛成長效果。飼養九週後結果持續
添加較無添加組增重率及飼料效率高出
50%及20%。These studies were conducted in Tilapia
insulin-like growth factor from Escherichia
coli and supplemented diets on the growth
promotion of snappers. Red striped snapper
( Lutjanus argentimaculatus ) were fed with
diets containing 0, 0.5, 1.0, 2.5 and 5 % five
levels recombinant Tilapia insulin-like
growth factor, respectively. After 6 Weeks of
feeding, the optimal amount of recombinant
Tilapia insulin-like growth factor added in
feed is 0.5%. The group continuous fed with
0.5% recombinant Tilapia insulin-like growth
factor diet, a highter growth rate 50% and
feed efficiency 20% were found than the
control group
