Dietary Haematococcus pluvialis promotes growth of red swamp crayfish Procambarus clarkii (Girard, 1852) via positive regulation of the gut microbial co-occurrence network
文献类型： 外文期刊
作者： Cai, Minglang 1 ; Hui, Wenjie 1 ; Deng, Xin 2 ; Wang, Aimin 1 ; Hu, Yi 2 ; Liu, Bo 3 ; Chen, Kaijian 2 ; Liu, Fei 1 ; Tian, Hongyan 1 ; Gu, Xizhang 4 ; Li, Hongqin 4 ; Li, Jinfeng 5 ;
作者机构： 1.Yancheng Inst Technol, Coll Marine & Biol Engn, Yancheng 224051, Peoples R China
2.Hunan Agr Univ, Coll Anim Sci & Technol, Changsha 410128, Hunan, Peoples R China
3.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi 214081, Jiangsu, Peoples R China
4.New Hope Liuhe Co Ltd, Chengdu 610000, Sichuan, Peoples R China
5.Jiangsu Jinfeng Agr Technol Co Ltd, Yancheng 224051, Peoples R China
关键词： Haematococcus pluvialis; Procambarus clarkii; Gut co-occurrence network; Growth performance; Immune response
期刊名称：AQUACULTURE （ 影响因子：5.135； 五年影响因子：5.125 ）
ISSN： 0044-8486
年卷期： 2022 年 551 卷
页码：
收录情况： SCI
摘要： Plant protein served as an alternative protein source to fish meal is widely used in the feed of Procambarus clarkii, but its excessive use has adverse impacts on aquatic animals. Haematococcus pluvialis has great potential for food applications due to its abundant astaxanthin. This experiment investigated the effects of dietary H. pluvialis on growth performance and gut microbiota of P. clarkii. That dietary H. pluvialis significantly increased weight gain rate (WGR), specific growth rate (SGR), and haemolymph immune-related enzyme activities was presented (P < 0.05), accompanied by a decrease in malondialdehyde (MDA) content. Moreover, dietary H. pluvialis reversed microbial dysbiosis and gut immune damage due to the decreased abundance of operational taxonomic unit (OTU) (s__Bacteroidaceae_bacterium_MS4), where interactions within the co-occurrence network restored gut villus development and microbial community stability. Thus, 0.6% H. pluvialis powder was recommended to be included in the feed. It was initially revealed that dietary H. pluvialis helped to stabilize microbial homeostasis, providing a scientific basis for the development of a functional feed.
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