Dietary glutamine supplementation improves tissue antioxidant status and serum non-specific immunity of juvenile Hybrid sturgeon (Acipenser schrenckii female x Huso dauricus male)

文献类型： 外文期刊

第一作者： Zhu, Q.

作者： Zhu, Q.;Xu, Q. Y.;Xu, H.;Wang, C. A.;Sun, D. J.;Zhu, Q.

作者机构：

关键词： glutathione: GSH;70-18-8;superoxide dismutase: SOD;9054-89-1;EC 1.15.1.1;malondialdehyde: MDA;542-78-9;complement 3;complement 4;glutathione peroxidase: GPX;9013-66-5;EC 1.11.1.9;alanyl-glutamine: dietary supplement;glutamine: 6899-04-3;dietary supplement;exogenous;enzyme activity;defense system;tissue antioxidant status

期刊名称：JOURNAL OF APPLIED ICHTHYOLOGY （ 影响因子：0.892； 五年影响因子：0.956 ）

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年卷期：

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收录情况： SCI

摘要： Exogenous glutamine (Gln) was evaluated for its effect on antioxidation and serum non-specific immunity in juvenile Hybrid sturgeon (Acipenser schrenckii female x Huso dauricus male). Seven basal diets supplemented with 0.0, 0.3, 0.6, 0.9, 1.2, 1.5% of Gln and 1.0% alanyl-glutamine (Aln-Gln) were fed to fish (initial mean weight: 22.38 +/- 0.18 g) for 8 weeks, and the experiment was conducted in triplicate. Treatment of fish supplemented with 1.2, 1.5% of Gln, or 1.0% of Aln-Gln caused a significantly higher glutathione peroxidase (GPX), superoxide dismutase (SOD) activities, and glutathione (GSH) content, and lower serum malondialdehyde (MDA) levels (P < 0.05) in serum, hepatopancreas and muscles. The addition of 0.9% Gln significantly improved the serum complement-3 (C3) and complement-4 (C4) levels (P < 0.05). These findings suggest that diet supplementation with 0.9-1.2% Gln or 1.0% of Aln-Gln may enhance the activity of the antioxidant defense system and the serum non-specific immunity of juvenile Hybrid sturgeon.

分类号： S9

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