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Effects of Alginate-Derived Oligosaccharides on Immune Ability of Farm-Cultured Shrimp Penaeus vannamei and Its Resistance to Vibrio harveyi

文献类型： 外文期刊

作者： Jiang, Yanhua 1 ; Jiang, Xiaolu 2 ; Wang, Peng 2 ; Hu, Xiaoke 3 ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, 106 Nanjing Rd, Qingdao 266071, Peoples R China

2.Ocean Univ China, Coll Food Sci & Engn, 5 Yushan Rd, Qingdao 266003, Peoples R China

3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, 17 Chunhui Rd, Yantai 264003, Peoples R China

期刊名称：NORTH AMERICAN JOURNAL OF AQUACULTURE （ 影响因子：1.717； 五年影响因子：1.664 ）

ISSN： 1522-2055

年卷期： 2017 年 79 卷 4 期

页码：

收录情况： SCI

摘要： This study was designed to examine the immunoregulatory effects of alginate-derived oligosaccharides (ADOs) on farm-cultured Pacific white shrimp Penaeus vannamei and its resistance to Vibrio harveyi. Total hemocyte count, superoxide dismutase (SOD) activity, bacteriolytic activity, phagocytic rate (PR), the average number of beads ingested per cell (ABPC), and the protective efficacy for P. vannamei challenged with Vibrio harveyi were determined. The study showed that the administration of ADOs at 1.0 g/kg of diet improved SOD activity, bacteriolytic activity, and PR by 25.2, 20.4, and 20.9%, respectively, 30 d after exposure. Total hemocyte count and ABPC showed no significant differences. The 96-h survival of the shrimp reached 46.7% and 90.0% when they were challenged with V. harveyi at concentrations of 1 x 10(7) and 1 x 10(6) cfu/ shrimp, which was significantly higher than that in the control group. The results obtained indicate that ADOs can act as an immunoregulant for P. vannamei.

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