Effects of dietary chitosan on the growth, health status and disease resistance of golden pompano (Trachinotus ovatus)
文献类型： 外文期刊
作者： Yu, Wei 1 ; Yang, Yukai 1 ; Chen, Haimin 4 ; Zhou, Qicun 4 ; Zhang, Yanwa 1 ; Huang, Xiaolin 1 ; Huang, Zhong 1 ; Li, Tao 1 ; Zhou, Chuanpeng 1 ; Ma, Zhenhua 1 ; Wu, Qiaer 1 ; Lin, Heizhao 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab South China Sea Fishery Resources Exploita, Minist Agr & Rural Affairs, Key Lab Fishery Ecol & Environm,South China Sea Fi, Guangzhou 510300, Guangdong Provi, Peoples R China
2.Chinese Acad Fishery Sci, Shenzhen Base South China Sea Fisheries Res Inst, Shenzhen 518121, Peoples R China
3.Sanya Trop Fisheries Res Inst, Key Lab Efficient Utilizat & Proc Marine Fishery R, Sanya 572018, Peoples R China
4.Ningbo Univ, Sch Marine Sci, Ningbo 315211, Peoples R China
5.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, 231 Xingangxi Rd, Guangzhou 510300, Peoples R China
关键词： Excessive; Inflammatory; Antioxidant capacity; Immunity; Vibrio harveyi
期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：10.723； 五年影响因子：9.964 ）
ISSN： 0144-8617
年卷期： 2023 年 300 卷
页码：
收录情况： SCI
摘要： The effects of dietary chitosan (0, 2, 4, 6, 8 and 10 g/kg) on the growth, health condition and disease resistance of golden pompano Trachinotus ovatus were evaluated. Dietary chitosan significantly enhanced weight gain, with the highest observed in fish fed the 6 g/kg chitosan diet. This chitosan level significantly promoted gut health by increasing villus length, lipase and protease activities and intestinal barrier-related genes expression. Meanwhile, dietary 6 g/kg chitosan improved the inflammatory response and anti-oxidative capacity of fish by regulating the expression of genes involved in NF-kappa B pathway and Nrf2 pathway, respectively. Furthermore, after challenge with Vibrio harveyi for 2 weeks, the survival rate increased significantly when dietary chitosan level was 6 g/kg. Overall, our results indicate that 6 g/kg chitosan is the optimal dose for enhancing growth, health and disease resistance of fish, but excessive chitosan (10 g/kg) weakens its beneficial effects.
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