Effect of dietary vitamin B(6 )supplementation on growth and intestinal microflora of juvenile golden pompano (Trachinotus ovatus)

文献类型： 外文期刊

第一作者： Huang, Qianqian

作者： Huang, Qianqian;Lin, Heizhao;Wang, Ruixuan;Huang, Zhong;Zhou, Chuanpeng;Yu, Wei;Xun, Pengwei;Tan, Lianjie;Wang, Yun;Wang, Jun;Huang, Qianqian;Xun, Pengwei;Tan, Lianjie;Lin, Heizhao;Huang, Zhong;Yu, Wei;Lin, Heizhao;Wang, Ruixuan;Lin, Heizhao;Wang, Ruixuan

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关键词： golden pompano; growth; intestinal microflora; requirement; vitamin B-6

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.082； 五年影响因子：2.415 ）

ISSN： 1355-557X

年卷期： 2019 年 50 卷 9 期

页码：

收录情况： SCI

摘要： In order to investigate the dietary vitamin B-6 (VB6) requirement for juvenile golden pompano, an experiment of six different diets with six dietary VB6 levels (0, 3.75, 7.47, 10.6, 13.7 and 18.5 mg/kg) was conducted. The results indicated that the content of dietary VB6 significantly increased weight gain rate (WGR), specific growth rate (SGR) and feed conversion ratio (FCR; p < 0.05). Golden pompano fed diet containing 7.47 mg/kg VB6 achieved the maximum ALT, AST, GPx, hepatic VB6 concentrations as well as the minimum MDA, however, the ALT, AST, GPx and hepatic VB6 concentrations decreased while MDA increased with a further increase in dieatry VB6. The highest values of GR and POD occurred at the 10.6 and 13.7 mg/kg dietary VB6 (p < 0.05) respectively. A diet supplemented with 7.47 mg/kg VB(6 )increased intestinal Na+, K+-ATPase, Chymotrypsin, gamma-glutamyl transpeptidase, creatine kinase and amylase activities (p < 0.05). The relative abundance of Tenericutes and Bacteroidetes decreased while Proteobacteria and Firmicutes improved with an increase in dietary VB6 levels up to 7.47 mg/kg. Quadratic regression analysis on WGR, hepatic VB6 concentrations, AST and ALT indicated that the optimum dietary VB6 levels for juvenile golden pompano were 8.84-9.28 mg/kg.

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