摘要
基础饲料中添加七种β-葡聚糖产品(以下简称B1-B7),B1-B6的添加量分别为0.075%,B7的添加量为0.200%,饲养凡纳滨对虾虾苗(体重0.062±0.007 g)33 d,测定其生长及免疫功能。结果表明,七种β-葡聚糖产品不同程度的提高了凡纳滨对虾的存活率,其中以B5组存活率最高,为72.0%(P<0.05),对照组成活率最低,为22%。不同β-葡聚糖产品对增重率影响显著,以B4和B5组(P<0.05)的增重最快,分别为691.4%和802.4%。其次为B3组,为544.1%。其余各组增重率与对照组无显著性差异。β-葡聚糖对凡纳滨对虾溶菌酶活力、抗菌活力以及SOD活力有显著影响,其中以含有较多1,6支链β-葡聚糖B5组的效果最佳。B5组肌肉、肝胰脏的溶菌酶活力分别为0.09 U和0.1 U,对照组则分别为0.03 U和0.04 U。B5组肌肉和肝胰脏的抗菌活力为0.45 U和0.34 U,对照组为0.21 U和0.18 U;B5组头部SOD活力为44.7 NU/mg pro.,对照组为12.8 NU/mg pro.。因此,B5组β-葡聚糖产品具有较好的应用前景。
The experiment diets were basal diet with seven kind of Beta-glucans（0. 075 % B1 - B6,0. 200% B7）, Basal diet was the control. Litopenaeus vannamei（body weight 0.062 ± 0.007 g） were triplicately fed on the diets for 33 days. The results show that the 7 kinds of Beta-glucans differently improved the survival, growth and nonspecific immunity. The B5 was the optimal. Its survival rate and relative body weight gain were 72.0% and 802.4% which were significantly higher than those of the control（ P 〈 0.05）. The lysozyme activities of muscle and hepatopancreas of B5 group were 0.09 U and 0.10 U which were significantly higher than that of the control（0.03 U and 0.04 U, P 〈 0.01 ）. The antibacterial activities of muscle and hepatopancreas of B5 group were 0.45 U and 0.34 U which were significantly higher than that of the control（0.21 U and 0.18 U, P 〈 0.01 ）. The superoxide dismutase acivities （SOD） of head of B5 group was 44.7 NU/mg pro.which was significantly higher than that of the control（ 12.8 NU/mg pro. , P 〈 0.01 ）.
出处
《上海水产大学学报》
CSCD
北大核心
2005年第3期263-269,共7页
Journal of Shanghai Fisheries University
基金
韩国基因和蛋白质公司合作项目
作者简介
杨福刚（1975-），男，江苏金湖人，硕士，专业方向为水产动物营养与饲料学。Tel：13381667225，E-mail：fgyang@126．com
通讯作者：周洪琪（1942-），女，上海市人，教授，博士生导师，主要从事水产动物营养与饲料学研究。E-mail：hqzhou@shfu．edu．cn
