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Dietary Tribonema sp. supplementation increased growth performance, antioxidant capacity, immunity and improved hepatic health in golden pompano (Trachinotus ovatus)
Aquaculture ( IF 4.5 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.aquaculture.2020.735667
Wei Zhao , Hao-Hang Fang , Bao-Yan Gao , Chen-Min Dai , Zhen-Zhou Liu , Cheng-Wu Zhang , Jin Niu

Abstract Filamentous microalga Tribonema sp. contains multiple bioactive compounds, such as eicosapentaenoic acid (EPA), palmitoleic acid and chrysolaminarin. Tribonema sp. is potentially a nature and safe ingredient in aquatic feed. Therefore, 6-week feeding experiment was conducted to investigate the effects of Tribonema sp. on growth performance, antioxidant capacity, immunity and hepatic health of Trachinotus ovatus. Three isonitrogenous and isolipidic diets (TS0, TS1 and TS5) containing 0% (control group), 1% and 5% Tribonema sp. were formulated, respectively. Results indicated that T. ovatus fed with TS5 diet significantly improved the growth performance by enhancing digestive enzyme activities and up-regulating the expression of growth hormone (GH) and insulin-like growth factor (IGF-I). T. ovatus fed with TS5 diet also significantly facilitated the antioxidant capacity through activating the Nrf2-ARE signal pathway and increasing antioxidant enzyme activities. Meanwhile, TS5 diet significantly promoted liver health by upregulating the expression of anti-inflammatory cytokines and downregulating the expression of pro-inflammatory cytokines. Furthermore, TS5 diet also upregulated the expression levels of non-specific immune related genes, including complement 4 (C4), c-type lysozyme (C-Lyz) and heat shock protein 70 (HSP70). In conclusion, Tribonema sp. can be used as feed ingredients to increase growth performance, antioxidant capacity, immunity and improve hepatic health in T. ovatus.

中文翻译:

饮食 Tribonema sp。补充剂可提高金鲳 (Trachinotus ovatus) 的生长性能、抗氧化能力、免疫力并改善肝脏健康

摘要丝状微藻 Tribonema sp。含有多种生物活性化合物,如二十碳五烯酸 (EPA)、棕榈油酸和金黄藻素。Tribonema sp. 是水产饲料中潜在的天然和安全成分。因此,进行了 6 周的饲养实验来研究 Tribonema sp. 的影响。卵形毛刺虫的生长性能、抗氧化能力、免疫力和肝脏健康的影响。三种等氮和等脂饮食(TS0、TS1 和 TS5),含有 0%(对照组)、1% 和 5% Tribonema sp。分别制定。结果表明,饲喂TS5日粮的卵形马齿苋通过增强消化酶活性和上调生长激素(GH)和胰岛素样生长因子(IGF-I)的表达,显着提高了生长性能。T。用 TS5 饮食喂养的卵子也通过激活 Nrf2-ARE 信号通路和增加抗氧化酶活性显着提高了抗氧化能力。同时,TS5饮食通过上调抗炎细胞因子的表达和下调促炎细胞因子的表达显着促进肝脏健康。此外,TS5饮食还上调了非特异性免疫相关基因的表达水平,包括补体4(C4)、c型溶菌酶(C-Lyz)和热休克蛋白70(HSP70)。总之,Tribonema sp。可用作饲料成分,以提高卵形毛球虫的生长性能、抗氧化能力、免疫力和改善肝脏健康。TS5饮食通过上调抗炎细胞因子的表达和下调促炎细胞因子的表达显着促进肝脏健康。此外,TS5饮食还上调了非特异性免疫相关基因的表达水平,包括补体4(C4)、c型溶菌酶(C-Lyz)和热休克蛋白70(HSP70)。总之,Tribonema sp。可用作饲料成分,以提高卵形毛球虫的生长性能、抗氧化能力、免疫力和改善肝脏健康。TS5饮食通过上调抗炎细胞因子的表达和下调促炎细胞因子的表达显着促进肝脏健康。此外,TS5饮食还上调了非特异性免疫相关基因的表达水平,包括补体4(C4)、c型溶菌酶(C-Lyz)和热休克蛋白70(HSP70)。总之,Tribonema sp。可用作饲料成分,以提高卵形毛球虫的生长性能、抗氧化能力、免疫力和改善肝脏健康。c 型溶菌酶 (C-Lyz) 和热休克蛋白 70 (HSP70)。总之,Tribonema sp。可用作饲料成分,以提高卵形毛球虫的生长性能、抗氧化能力、免疫力和改善肝脏健康。c 型溶菌酶 (C-Lyz) 和热休克蛋白 70 (HSP70)。总之,Tribonema sp。可用作饲料成分,以提高卵形毛球虫的生长性能、抗氧化能力、免疫力和改善肝脏健康。
更新日期:2020-12-01
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