The effects of dietary Lycium barbarum extract on growth performance, liver health and immune related genes expression in hybrid grouper (Epinephelus lanceolatus male x E. fuscoguttatus female) fed high lipid diets
文献类型： 外文期刊
作者： Tan, Xiaohong 1 ; Sun, Zhenzhu 2 ; Ye, Chaoxia 2 ; Lin, Heizhao 3 ;
作者机构： 1.Hunan Normal Univ, Coll Life Sci, State Key Lab Dev Biol Freshwater Fish, Changsha 410081, Hunan, Peoples R China
2.South China Normal Univ, Guangzhou Key Lab Subtrop Biodivers & Biomonitori, Guangdong Prov Key Lab Hlth & Safe Aquaculture, Inst Modern Aquaculture Sci & Engn,Sch Life Sci, Guangzhou 510631, Guangdong, Peoples R China
3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China
关键词： Hybrid grouper; Lycium barbarum extract; Growth performance; Liver morphology; Antioxidant ability; High lipid diets
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.581； 五年影响因子：4.851 ）
ISSN： 1050-4648
年卷期： 2019 年 87 卷
页码：
收录情况： SCI
摘要： Growth performance, hepatic morphology and antioxidant ability, and expressions of antioxidant, inflammatory and apoptosis related genes were investigated in hybrid grouper fed high lipid diets containing 0, 0.5, 1, 2 and 10 g kg(-1) Lycium barbarian extract (LBE) for 8-week feeding. The study showed that dietary LBE significantly increased weight gain rate (WGR) and specific growth rate (SGR) of fish (P < 0.05), the highest WGR and SGR were observed in fish fed 10.00 g kg(-1) LBE diet. Dietary LBE improved liver morphology by decreasing hepatocyte necrosis and inflammatory cell infiltration induced by high lipid diets. Meanwhile, high lipid diets supplemented with 0.5-2 g kg(-1) LBE improved hepatic anti-oxidant ability by increasing the expression of antioxidant genes (GPx and CAT) and decreasing Keap1 mRNA levels. Moreover, dietary supplementation with 0.50-2.00 g kg(-1) LBE significantly decreased IL-8, caspase-3, caspase-8 and caspase-9 mRNA levels and significantly increased IL-10 and TGF-beta 1 mRNA levels in the liver of fish fed high lipid diets. In conclusion, high lipid diets supplemented with LBE improved growth performance, feed utilization and liver health in hybrid groupers by increasing hepatic antioxidant enzymes activity and its genes expression, as well as inhibition of hepatic inflammatory response and apoptosis.
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