您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Dietary arginine levels affect growth performance, intestinal antioxidant capacity and immune responses in largemouth bass (Micropterus salmoides)

文献类型： 外文期刊

作者： Yu, Yayun 1 ; Huang, Dongyu 1 ; Zhang, Lin 1 ; Chen, Xiaoru 2 ; Wang, Yongli 2 ; Zhang, Lu 3 ; Ren, Mingchun 1 ; Liang, Hualiang 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Minist Agr & Rural Affairs, Key Lab Integrated Rice Fish Farming Ecol, Wuxi 214081, Peoples R China

2.Tongwei Agr Dev Co LTD, Chengdu 610093, Peoples R China

3.Tongwei Co Ltd, Key Lab Nutr & Hlth Culture Aquat Livestock & Poul, Hlth Aquaculture Key Lab Sichuan Prov, Minist Agr& Rural Affairs, Chengdu 610093, Peoples R China

关键词： Largemouth bass; Requirement; Function; Metabolism; Regulatory mechanism

期刊名称：AQUACULTURE REPORTS （ 影响因子：3.7； 五年影响因子：3.8 ）

ISSN： 2352-5134

年卷期： 2023 年 32 卷

页码：

收录情况： SCI

摘要： This study explored the role of dietary arginine level (DAL) on growth, intestinal antioxidant status and immune response in juvenile largemouth bass (Micropterus salmoides), providing guidance for the optimization of commercial feed in largemouth bass. Six graded arginine levels in diets were fed to the fish for 8 weeks (1.96%, 2.28%, 2.52%, 2.81%, 3.09% and 3.35% diets). The findings were as follows: with increasing DALs, FW, WG and SGR increased first and decreased, and FCR showed the opposite trend. There was no difference in the contents of crude protein and ash among graded DAL (P > 0.05). DAL (3.09% and 3.35%) significantly increased the activities of plasma AST (P < 0.05). Certain range of dietary arginine levels could improve antioxidant ability by regulating intestinal antioxidant-related parameters including the activities of SOD, GPx, and the contents of GSH and MDA. The gene expression of Nrf2 was significantly increased in response to 2.52% DAL, while Keap1 expression was decreased (P < 0.05). Furthermore, 1.96% and 2.28% DALs significantly increased the gene expression of CAT and GPx (P < 0.05), and SOD expression was the highest in response to 2.52% and 2.81% DALs (P < 0.05). Compared with the control group, the relative expressions of IL-1 beta, IL-8, TNF-alpha and NF-kappa B were reduced that were fed 2.52% 3.35% DALs. Moreover, the relative expression of IL-10 and TGF-beta were peaked in response to 2.81% DAL (P < 0.05). The quadratic regression curve analysis according to the growth results of SGR and FCR, the expressions of IL-10 and TGF-beta showed that the optimal dietary arginine requirement for largemouth bass were 2.40%-2.63% (5.03%-5.46% of dietary protein), and could promote growth, intestinal antioxidant capacity and immune responses in juvenile largemouth bass.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台