Impact of Astragalus polysaccharide, chitosan and xylo-oligosaccharide on intestinal physicochemical properties and gut microbiota disorder of Pelteobagrus fulvidraco caused by transport stress

文献类型： 外文期刊

第一作者： Bai, Chan

作者： Bai, Chan;Huang, Guowei;Qi, Xue;Wang, Juguang;Qiu, Liang;Wang, Lan;Liao, Tao;Huang, Guowei;Bai, Chan;Huang, Guowei;Qi, Xue;Wang, Juguang;Qiu, Liang;Wang, Lan;Liao, Tao

作者机构：

关键词： Polysaccharides; Yellow catfish; Transport stress; Regulation of intestinal microbiota; Immune response

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 321 卷

页码：

收录情况： SCI

摘要： This study examined the effects of bioactive carbohydrate additives on yellow catfish juveniles following transport. Three additives-Astragalus polysaccharides (APS), chitosan (COS), and xylooligosaccharides (XOS)-were evaluated. The results revealed that, after the holding and transport period, cortisol levels were significantly elevated in the APS group (P < 0.05), while they decreased in the COS group. Both APS and XOS were found to increase the activity levels of immunoglobulin M, component 3, and lysozyme in the fish. Additionally, the APS and COS groups exhibited reduced activity levels of superoxide dismutase and catalase, indicating a mitigation of transport-induced stress. Reduced activity levels of Caspase-3 and Caspase-9 were observed in the intestinal tract of fish from the APS and COS groups. APS also increased the number of goblet cells and the height of intestinal villi, thereby improving intestinal structure integrity. Following transport, the relative abundance of Proteobacteria, which includes pathogenic bacteria, was significantly lower in the APS group, while the abundance of the potentially beneficial genus Cetobacterium increased substantially, resulting in improved microbiota environment compared to the other groups. In conclusion, the addition APS to the water during the holding period followed by transport significantly impacted the health and immune function of yellow catfish juveniles.

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