Effects of dietary ginger (Zingiber officinale) polysaccharide on the growth, antioxidant, immunity response, intestinal microbiota, and disease resistance to Aeromonas hydrophila in crucian carp (Carassius auratus)
文献类型： 外文期刊
作者： Luo, Liang 1 ; Meng, Xianwei 1 ; Wang, Shihui 1 ; Zhang, Rui 1 ; Guo, Kun 1 ; Zhao, Zhigang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fishery Res Inst, Key Lab Cold Water Fish Germplasm Resources & Mult, Harbin 150070, Peoples R China
2.Harbin Univ Commerce, Ctr Pharmaceut Engn & Technol, Harbin 150076, Peoples R China
关键词： Ginger polysaccharide; Carassius auratus; Aeromonas hydrophila; Intestinal microbiota
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：7.7； 五年影响因子：7.7 ）
ISSN： 0141-8130
年卷期： 2024 年 275 卷
页码：
收录情况： SCI
摘要： Ginger polysaccharides (GP) promote growth and development in fish. However, the effects of GP on crucian carp remain unclear. The present study investigated the effects of GP on the growth performance, immunity, intestinal microbiota, and disease resistance in crucian carp. Four treatment groups were established with different concentrations of GP (0.1 %, 0.2 %, 0.4 %, and 0.8 %). GP was not added as the control group, and the feeding period lasted for 56 d, followed by a 96-h anti-infection treatment using Aeromonas hydrophila. The results showed that dietary GP significantly improved growth performance, especially in the 0.4 % GP group. Furthermore, GP administration notably increased serum lysozyme (LMZ) activity, digestive enzyme performance, and antioxidant capacity of crucian carp. Moreover, dietary inclusion of GP up-regulated the expression of tumour necrosis factor-alpha (TNF-alpha), interleukin-8 (IL-8), interferon-gamma (IFN-gamma), and nuclear factor kappa-B (NF kappa B) genes while down-regulating IL-10 and transforming growth factor-beta (TGF-beta) gene expressions, thus promoting liver health in crucian carp. Additionally, incorporating GP into the diet regulated both the diversity and composition of the intestinal microbiota in crucian carp, explicitly enhancing the relative abundance of beneficial bacteria, such as Fusobacteriota and Firmicutes. Therefore, GP reduces the mortality of crucian carp infected with A. hydrophila. In conclusion, this study provides novel insights into the application of dietary GP in cultured fish and evaluates the value of traditional Chinese medicinal polysaccharides against pathogenic bacteria.
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