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  • Title: Stimulating effects of polysaccharide from Angelica sinensis on the nonspecific immunity of white shrimps (Litopenaeus vannamei).
    Author: Pan S, Jiang L, Wu S.
    Journal: Fish Shellfish Immunol; 2018 Mar; 74():170-174. PubMed ID: 29305988.
    Abstract:
    Angelica sinensis polysaccharide (ASP) was prepared by hot water extraction. Then, high-performance liquid chromatography and ion chromatography analyses were conducted, and the results indicated that ASP is a heteropolysaccharide, has a molecular mass of 82,000 Da and consists of arabinose, galactose and glucose (molar ratio of 6:1:1). The effects of ASP on the nonspecific immunity of white shrimps (Litopenaeus vannamei) were investigated by feeding them with ASP-containing diets (0.5, 1 and 1.5 g/kg) during a 12-week breeding experiment. Oral ASP administration significantly improved the survival rate, phenoloxidase activity, superoxide dismutase activity, glutathione peroxidase level, disease resistance against V. alginolyticus, total haemocyte count and number of hyaline cells, semigranular cells and granular cells (p < .05). ASP exhibits immunostimulatory effects on Pacific white shrimps (L. vannamei) and may thus be used as a diet supplement for them.
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