Dietary curcumin supplementation enhances intestinal immunity and gill protection in juvenile greater amberjack (Seriola dumerili)
文献类型： 外文期刊
作者： He, Yuhang 1 ; Fu, Zhengyi 1 ; Dai, Shiming 1 ; Yu, Gang 1 ; Ma, Zhenhua 1 ; Wang, Xiaomei 4 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Trop Aquaculture Res & Dev Ctr, Sanya 572018, Peoples R China
2.Sanya Trop Fisheries Res Inst, Sanya 572018, Peoples R China
3.Hainan Prov Key Lab Efficient Utilizat & Proc Mar, Sanya 572018, Peoples R China
4.Chinese Acad Fishery Sci, Changdao Enhancement & Expt Stn, Shandong, Peoples R China
关键词： Growth performance; Intestinal histology; Intestinal immune responses; Ammonia stress; Protective effect; Recovery capacity
期刊名称：HELIYON （ 影响因子：4.0； 五年影响因子：4.1 ）
ISSN：
年卷期： 2022 年 8 卷 11 期
页码：
收录情况： SCI
摘要： A 8-week feeding trial was conducted to determine the effects of dietary supplementation with curcumin on growth, intestinal health, and gills resistance to ammonia stress in juvenile Seriola dumerili. Three isonitrogenous and isolipidic test diets were prepared by supplementing incremental levels of dietary curcumin at 0% (CUR0%, control), 0.01% (CUR0.01%), 0.02% (CUR0.02%), respectively. Fish were fed with experimental diet. Recovery and protection capacity after ammonia challenge assay was adopted to test the effect of curcumin. At the end of the feeding trial, the results showed that dietary supplementation with proper curcumin level had a significant positive effect on fish survival and intestinal histology structure. Meanwhile, dietary supplementation with proper curcumin level can improve intestinal health by increasing immune enzyme activity, up-regulating the expression of anti-inflammatory cytokines, down-regulating the expression of pro-inflammatory cytokines and regulating other immune-related genes. Subsequently, after the ammonia challenge and recovery experiment, the results of antioxidant-related genes and antioxidant enzymes showed that dietary supplementation with proper curcumin level can improve the gill protective and recovery capacity from ammonia stress through increasing antioxidant capacity. These results suggest that dietary supplementation with proper curcumin can promote the growth, in-testinal health, gill resistance and recovery to ammonia stress of S. dumerili.
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