文献类型： 外文期刊
第一作者： Yang, Changgeng
作者： Yang, Changgeng;Jiang, Ming;Wen, Hua;Tian, Juan;Wu, Fan;Liu, Wei;Yu, Lijuan;Jiang, Ming;Tian, Juan
作者机构：
关键词： Ctenopharyngodon idellua; vitamin B-6; growth; serum; amino acids
期刊名称：ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH （ 影响因子：0.287； 五年影响因子：0.593 ）
ISSN： 0792-156X
年卷期： 2017 年 69 卷
页码：
收录情况： SCI
摘要： We evaluated the effects of dietary vitamin B-6 levels on growth, survival, and serum biochemical parameters in juvenile grass carp (Ctenopharyngodon idella). Fish were fed one of seven purified diets containing 0.12 (control), 1.16, 2.37, 4.82, 9.20, 17.51, or 36.52 mg/kg B-6. We observed abnormal swimming behavior in some fish fed the control diet after 17 days. The survival rate (24.44 +/- 1.92%) was low in the control group. Supplementation with vitamin B-6 resulted in significantly higher (P < 0.05) weight gain, specific growth rate, final weight, and weight gain rate. Feed efficiency was significantly lower in the fish fed the control diet than the remaining groups (P < 0.05). Dietary vitamin B-6 levels had no significant effect on fish body composition or serum albumin and total protein content. Dietary vitamin B-6 supplementation caused a decrease in serum triacylglycerol content and an increase in total cholesterol content, high density lipoprotein cholesterol content, and alpha-amylase activity levels (P < 0.05). Broken-line regression analysis of SGR, HDL-C content, and alpha-AMY activity, showed that the optimum dietary vitamin B-6 requirement for juvenile grass carp was 1.13, 3.73, 1.57 mg B-6/kg, respectively.
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