Selenium Accumulation, Antioxidant Enzyme Levels, and Amino Acids Composition in Chinese Mitten Crab (Eriocheir sinensis) Fed Selenium-Biofortified Corn

文献类型： 外文期刊

第一作者： Zhang, Ru

作者： Zhang, Ru;Zheng, Qing;Chen, Dong;Zhang, Ru;Li, Miao;Fan, Ting;Ma, Xuzhou;Yang, Ling;Liu, Yongxian;Pan, Liping;Yin, Xuebin

作者机构：

关键词： Se-biofortified corn; Chinese mitten crab; muscle Se level; hemolymph supernatant; antioxidant levels; amino acids content

期刊名称：NUTRIENTS （ 影响因子：5.717； 五年影响因子：6.349 ）

ISSN： 2072-6643

年卷期： 2018 年 10 卷 3 期

页码：

收录情况： SCI

摘要： The effects of selenium (Se)-biofortified corn on the total Se contents, the antioxidant enzyme levels, and the amino acids composition in Chinese mitten crab (Eriocheir sinensis) during the stage of the fifth shelling to maturity were investigated in the present study. The culture density of crabs was 600 per 667 m(2), and they were continuously fed 120.4 mg Se from Se-biofortified corn per 667 m(2) every two days for 90 days. The results showed that the total muscle Se levels in the crabs were significantly increased (p < 0.05). Activities of hemolymph supernatant enzymes including alkaline phosphatase (AKP), lysozyme (LZM), glutathione peroxidase (GPx), and superoxide dismutase (SOD) were also enhanced (p < 0.05). The protein and crude fat levels at maturity were higher than those at the fourth molt. The levels of total essential amino acids (Sigma EAAs) and total delicious amino acids (Sigma DAAs) were significantly increased (p < 0.05). We demonstrate that the feeding of Se-biofortified corn could significantly improve total muscle Se concentrations and hemolymph supernatant antioxidant enzyme activities in Chinese mitten crab, and slow down the rapid decline of Sigma EAAs and Sigma DAAs at maturity, thus improving the nutritional quality of Chinese mitten crab.

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