维生素B_6对史氏鲟幼鱼能量收支的影响  

Effects of Dietary Vitamin B_6 on Energy Budget of Juvenile Acipenser schrenki Brandt

作　　者：邢浩春[1] 杜利强[2] 李同庆[3] 安瑞永[4] 

机构地区：[1]邯郸学院生物科学系,河北邯郸056003 [2]河北科技师范学院生命科学系,河北昌黎066004 [3]河北省水产局,石家庄050011 [4]河北师范大学生命科学学院,石家庄050016

出　　处：《湖北农业科学》2014年第14期3351-3353,3378,共4页Hubei Agricultural Sciences

基　　金：国家科技成果重点推广计划基金项目(2001EC000054)

摘　　要：在温度（20±0.5）℃、pH 6.8～7.5的条件下,研究了低蛋白质含量（28％）饲料中添加不同浓度维生素B6（0、15、30、45、60、75 mg/kg）对史氏鲟（Acipenser schrenki Brandt）幼鱼能量收支的影响.结果表明,浓度为45～60mg/kg维生素B6的饲料组其饲料转化效率最高,粪能分配率和排泄能分配率偏低,生长能分配率显著高于其他组（P＜0.05）.因此,在低蛋白质含量（28％）饲料中适量添加维生素B6（45～60 mg/kg）能够促进史氏鲟幼鱼的生长,同时减少水质污染.能量收支方程为45 mg/kg饲料组100C=21.3F＋11.5U＋46.3R＋21.0G,60 mg/kg饲料组100C=1 9.7F＋1 0.3U＋52.7R＋1 7.3G.Under the conditions of temperature （20±0.5） ℃ and pH 6.8～7.5,effects of adding Vitamin B6 （VB6） at different levels （0,15,30,45,60,75 mg/kg）in feed with lower protein （28％） on energy budget of juvenile Acipenser schrenki Brandt was investigated.The results showed that the food conversion efficiency reached the highest at basal diet containing 45 mg/kg to 60 mg/kg VB6.The proportion of food energy allocated to feces energy and excretion energy was significantly decreased.The proportion of food energy allocated to growth was highest （P＜0.05）.The results indicated that the growth of juvenile A.schrenski＇s is significantly promoted at 45 mg/kg to 60 mg/kg of VB6,and water pollution is decreased.The energy budget was 100 C=21.3 F＋11.5 U＋46.3 R＋21.0 G（45 mg/kg level） and 100 C=19.7 F＋10.3 U＋52.7 R＋17.3 G（60 mg/kg level）.

关 键 词：史氏鲟(Acipenser schrencki Brandt) 维生素B6 能量收支 

分 类 号：S963.16[农业科学—水产养殖]