The Assessment of Dietary Organic Zinc on Zinc Homeostasis, Antioxidant Capacity, Immune Response, Glycolysis and Intestinal Microbiota in White Shrimp (Litopenaeus vannamei Boone, 1931)

文献类型： 外文期刊

第一作者： Yang, Jinzhu

作者： Yang, Jinzhu;Wang, Tiantian;Zhang, Yanjiao;Mai, Kangsen;Lin, Gang;Li, Mingzhu

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关键词： organic zinc; zinc homeostasis; antioxidants; immunity; glycolysis; intestinal microbiota; Litopenaeus vannamei Boone; 1931

期刊名称：ANTIOXIDANTS （ 影响因子：7.675； 五年影响因子：7.886 ）

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年卷期： 2022 年 11 卷 8 期

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收录情况： SCI

摘要： This study aimed to assess dietary organic zinc on zinc homeostasis, antioxidant capacity, immune response, glycolysis and intestinal microbiota in white shrimp (Litopenaeus vannamei Boone, 1931). Six experimental diets were formulated: Control, zinc free; S120, 120 mg center dot kg(-1) zinc from ZnSO4 center dot 7H(2)O added into control diet; O30, O60, O90 and O120, 30, 60, 90 and 120 mg center dot kg(-1) zinc from Zn-proteinate added into control diet, respectively. The results showed that organic zinc significantly promoted zinc content and gene expression of ZnT1, ZIP11 and MT in the hepatopancreas and enhanced antioxidant capacity and immunity (in terms of increased activities of T-SOD, Cu/Zn SOD, PO, LZM, decreased content of MDA, upregulated expressions of GST, G6PDH, ProPO, LZM and Hemo, and increased resistance to Vibrio parahaemolyticus). Organic zinc significantly upregulated GluT1 expression in the intestine, increased glucose content of plasma and GCK, PFK and PDH activities of hepatopancreas, and decreased pyruvate content of hepatopancreas. Organic zinc improved intestinal microbiota communities, increased the abundance of potentially beneficial bacteria and decreased the abundance of potential pathogens. Inorganic zinc (S120) also had positive effects, but organic zinc (as low as O60) could achieve better effects. Overall, organic zinc had a higher bioavailability and was a more beneficial zinc resource than inorganic zinc in shrimp feeds.

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