摘要
采用L(9 34)正交设计法,配制成9种含有不同VE(40、45、50 mg/kg)、VC(500、750、1 000 mg/kg)、胆碱(3 000、5000、8 000 mg/kg)和肌醇(200、400、600 mg/kg)的实用性饲料,饲养平均体长为(17.78±1.70)cm,平均体重(28.96±9.78)g的军曹鱼幼鱼60 d。每种饲料随机投喂3组实验鱼,每天投喂2次,投喂量为鱼体重的3%～5%。实验结束时测定增重率并计算饲料系数和成活率。结果显示:对照组和实验1～9组的增重率分别为80.82%、251.39%、327.45%、54.37%、99.24%、231.28%、69.12%、107.19%、91.47%和69.51%,饲料系数分别2.13、1.78、1.63、2.05、1.88、1.85、2.02、1.96、2.03和1.97。方差分析表明,军曹鱼饲料中VE、VC、胆碱、肌醇的适宜添加量分别为45 mg/kg、750 mg/kg、3 000 mg/kg和200 mg/kg。
Using the orthogonal test design L9 （3^4）, nine practical diets containing different vitamin E（40, 45,50 mg/kg）, vitamin C （500,750,1 000 mg/kg）, choline （3 000,5 000,8 000 mg/kg） and inositol（200,400, 600 mg/kg） respectively were fed to cobia （Rachycentron canadum） with mean body length of 17.78±1.70 cm and body weight of 28.96±9.78 g. Each diet was fed to 3 replicate groups of cobias for 60 days. The fish were fed twice every day and daily feeding rate was 3 % to 5 % wet weight. The results were as follows： Weight gain rate of cobia for control and treatments from No.1 to No.9 were 80.82 %, 251.39 %, 327.45 %, 54.37 %, 99.24 %, 231.28 %, 69.12 %, 107.19 %, 91.47 %, and 69.51%, feeding conversion ratio were 2.13, 1.78, 1.63, 2.05, 1.88, 1.85, 2.02, 1.96, 2.03 and 1.97. Analysis of variance indicated that the optimal supplementations of vitamin E, vitamin C, choine and inositol were 45 mg/kg, 750 mg/kg, 3 000 mg/kg and 400 mg/kg respectively.
出处
《浙江海洋学院学报（自然科学版）》
CAS
2006年第1期10-14,共5页
Journal of Zhejiang Ocean University(Natural Science Edition)
基金
中国水产科学研究院基金项目(2001-5-2)
关键词
军曹鱼
饲料
VE
VC
胆碱
肌醇
Cobia （Rachycentron canadum）
Feed
Vitamin E
Vitamin C
Choline
Inositol.
