Effects of low temperature air exposure and immersion on antioxidant, immune, intestinal flora and metabolome of Chinese mitten crab (Eriocheir sinensis)
文献类型： 外文期刊
作者： Deng, Xiangyi 1 ; Li, Zhiqiang 1 ; Luo, Liang 2 ; Wang, Shihui 2 ; Zhang, Rui 2 ; Guo, Kun 2 ; Yang, Yuhong 1 ; Zhao, Zhigang 2 ;
作者机构： 1.Northeast Agr Univ, Coll Anim Sci & Technol, Harbin 150030, Peoples R China
2.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Engn Technol Res Ctr Saline alkaline Water Fisheri, Key Open Lab Cold Water Fish Germplasm Resources &, Harbin 150070, Peoples R China
3.Huludao Ecol Environm protect Serv Ctr, Huludao 125000, Peoples R China
关键词： Eriocheir sinensis; Immersion; Air exposure; Physiologic function; Metabolome
期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS （ 影响因子：2.4； 五年影响因子：2.8 ）
ISSN： 1744-117X
年卷期： 2024 年 52 卷
页码：
收录情况： SCI
摘要： The aim of this study was to investigate the effects of immersion on immune enzyme activity, haemolymph index, intestinal microbiome and metabolome of E. sinensis after low temperature air exposure. The results showed that low temperature air exposure induced stress response, which led to hepatopancreas injury and increased membrane permeability, but this situation was reversible and alleviated after immersion. In addition, after exposure to low temperature air, haemolymph metabolism-related substances such as glucose and total cholesterol were significantly different from the initial value (P < 0.05), and gradually returned to the initial level after immersion. The changes of intestinal flora and hepatopancreas metabolism caused by low temperature air exposure did not fully recover after immersion, and its negative effects did not completely disappear. The sequencing results showed that the species composition and diversity of intestinal microorganisms of Chinese mitten crabs were changed after low temperature air exposure and immersion treatment. The relative abundance of Bacteroidetes and Proteobacteria were increased, while the relative abundance of Firmicutes was decreased (P < 0.05). Metabolomics analysis showed that lysine levels increased significantly, taurocholic acid levels decreased significantly, and amino acid metabolism and lipid metabolism balance were disturbed in hepatopancreas of E. sinensis after exposure to low temperature air and immersion (P < 0.05). This study will provide new insights into the recovery mechanism of water immersion on Chinese mitten crabs after exposure to air.
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