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Effect of dietary lipid source and vitamin E on growth, non-specific immune response and resistance to Aeromonas hydrophila challenge of Chinese mitten crab Eriocheir sinensis

文献类型： 外文期刊

作者： Chen, Yanliang 1 ; Liu, Wenshu 2 ; Wang, Xiaodan 1 ; Li, Erchao 3 ; Qiao, Fang 1 ; Qin, Jian G. 4 ; Chen, Liqiao 1 ;

作者机构： 1.East China Normal Univ, Sch Life Sci, Shanghai, Peoples R China

2.Jiangxi Acad Agr Sci, Nanchang, Jiangxi, Peoples R China

3.Hainan Univ, Coll Marine Sci, Dept Aquaculture, Haikou, Hainan, Peoples R China

4.Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA, Australia

关键词： disease resistance; Eriocheir sinensis; growth; immunity; lipid source; vitamin E

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： 2018 年 49 卷 5 期

页码：

收录情况： SCI

摘要： Six purified diets were formulated to contain three lipid sources, fish oil (FO), linseed oil (LO) and soybean oil (SO), at 6% diet lipid crossing two levels of vitamin E (100 and 300mg -tocopheryl acetate/kg diet) for each lipid source (FO100, FO300, LO100, LO300, SO100, SO300). The juvenile Chinese mitten crab, Eriocheir sinensis, respectively, fed on these diets with four replicates for 6weeks. The crab weight gain (WG) and specific growth rate (SGR) were significantly affected by dietary lipid sources. No difference was found between the crabs fed two levels of vitamin E, but the WG and SGR were numerically higher in crab fed 300mg/kg vitamin E than those fed the other level of vitamin E. The lipid source and vitamin E level could affect fatty acid composition in the hepatopancreas. The contents of saturated fatty acids (SAFA) and n-3HUFA were significantly higher in the crab-fed fish oil. The highest contents of n-6PUFA and n-3PUFA were found in the crab-fed soybean oil and linseed oil respectively. The contents of SAFA, n-3HUFA and n-3PUFA were higher in the 300mg/kg vitamin E treatment. A lower malondialdehyde (MDA) content and higher phenoloxidase (PO) activity were observed in the crab fed 300mg/kg vitamin E. The results of this study indicate that the Chinese mitten crab fed the diet with 6% fish oil and 300mg/kg vitamin E showed better growth, antioxidant capacity and resistance to Aeromonas hydrophila.

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