速大肥在凡纳滨对虾饲料中的应用

Effect of feed additive Stafac-500 on the growth and feed conversion for juvenile white shrimp,Litopenaeus vannamei

摘要: 配制5种饲料，速大肥（Stafac-500）的添加量分别为0，20，40，60和80 mgkg-1，于室内水泥池（0.90 m0.60 m1.0 m）分组进行实验，每池养凡纳滨对虾60尾，初始体重为0.22 g，每组饲料3个平行，养殖时间8周。增重率(%)分别为1 10543，1 11533，1 15022，1 19253和1 27233；饲料系数分别为1.560.11，1.510.02，1.450.01，1.420.10和1.490.02。结果表明，投喂添加速大肥添加剂饲料的对虾生长性能优于对照组，对虾摄入不同剂量的速大肥对全虾的营养组成没有显著性差异。

Abstract: five diets added feed additive Stafac-500（Stafac）0，20, 40, 60 or 80 mgkg-1 diet were conducted to determine the weight gain (WG, %), survival, feed conversion ratio (FCR) for Litopenaeus vannamei juvenile (weight 0.22 g) at indoor concrete pools（0.90 m0.60 m1.0 m）for 8 weeks. Groupers of 60 animals were used in each pool, in triplicate WG of the shrimp fed five diets contained feed additive Stafac-500 were 1 10543，1 11533，1 15022，1 19253 and 1 27233, respectively；and FCR were 1.560.11, 1.510.02, 1.450.01, 1.420.10 and 1.490.02, respectively. The result showed that shrimp fed trial diets contained feed additive Stafac-500 40, 60 and 80 mgkg-1 diet superior to the control. However, dietary Stafac-500 (Stafac）did not affect the whole-body composition among shrimp fed with the various diets.