摘要
将270尾一冬龄健康建鲤随机分成9组,选用均匀设计U_8(8~5),通过30天的试验,研究基础日粮的2％添加剂成分甲基睾丸酮X_1、甲状腺素X_2、甜菜碱X_3、柠檬酸X_4的最佳组合。结果表明:添加成分与增重率呈显著回归关系:Y=7.7917+0.9062X_1~2-0.32X_2X_3+4.3979×10^(-6)X_3X_4,其拟合度R^2=0.9062。经格点网络筛选,最优组合为X_1=6,X_2=0.004,X_3=4000,Y_4=3700。其增重率为100.39％,该结果比试验最优方案Ⅱ的增重率高33.15％。方案Ⅱ与对照组比较;增重率提高41.98％,饵料系数降低0.74,鱼体单位增重成本降低0.96元/kg。
By means of uniform design U8(85), a total of 270 winter annual breeding common catps were used to study the effect of methyltestosterone, thyroxine, betalne, and citric acid on common carp growth from April 29 to May 30 in 1996, The results showed that the gain efficiency had significantly regression relation on the above four factors: Y=7. 7917+ 0.9062X12-0.32X2X3+4. 3979×10-6X3X4. Where R2was 0.9062. Meanwhile, the gain efficiency was the best while the levels of the above four factors were 6, 0. 004, 4000, 3700 (ppm), respectively; and it was 33. 15 % higher than that of uniform design scheme two (UDST). As compared with the control, the gain efficiency of UDST was 41. 98% higher, feed coefficient of UDST was 0.74 lower,and feed cost per kilogram of UDST decreased 0. 96 Yuan.
出处
《西南农业大学学报（社会科学版）》
1996年第2期15-20,共6页
Journal of Southwest Agricultural University:Social Science Edition
关键词
鲤鱼
添加剂
Common carp, Feed additive
