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
第一作者: Yu, Wei
作者: Yu, Wei;Yang, Yukai;Zhang, Yanwa;Huang, Xiaolin;Huang, Zhong;Li, Tao;Zhou, Chuanpeng;Ma, Zhenhua;Wu, Qiaer;Lin, Heizhao;Yu, Wei;Yang, Yukai;Zhang, Yanwa;Huang, Xiaolin;Huang, Zhong;Li, Tao;Lin, Heizhao;Yu, Wei;Ma, Zhenhua;Yu, Wei;Chen, Haimin;Zhou, Qicun;Ma, Zhenhua;Wu, Qiaer;Lin, Heizhao
作者机构:
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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