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盐度的变化引起了大西洋鱼的压力和免疫反应,而微藻类对饮食缓解的潜力有限

Doret R van Muilekom¹, Jonas Mueller^2,3, Jacqueline Lindemeyer⁴

¹Fish Genetics Unit, Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany.

Frontiers in physiology

|February 27, 2024

概括

盐度变化后的化触发了大西洋鱼的免疫和压力反应. 富含微藻的饮食在缓解这些影响方面取得了有限的成功.

科学领域:

水产养殖和鱼类生理学
鱼类免疫学和压力反应
水产养殖中的营养科学

背景情况:

雾化显著影响养殖大西洋鱼 (Salmo salar) 的免疫和压力反应.
有限的知识存在于盐度变化如何影响鱼生理几个月后smoltification.
了解这些影响对于优化水产养殖实践和鱼类健康管理至关重要.

研究的目的:

调查盐度从水到海水的变化对大西洋鱼的影响.
为了评估对压力和免疫反应的影响,在鱼的后溶解.
评估微藻丰富饮食在缓解这些生理变化的有效性.

主要方法:

大西洋鱼在海水转移 (SWT) 之前,在水中养了富含微藻的饮食8周.
对头部脏,,肝脏和血样本进行了基因表达,血生物化学和蛋白质定量.
采样发生在SWA之前,SWA后20小时,SWA后2周.

主要成果:

传输后,鱼表现出完全的透调节能力,由高甲甲α1b水平和稳定的血离子表明.
基因表达显示,SWT后的细胞因子信号传递和抗病毒防御基因减少.
头显示了急性应激反应,增加了应激指标和改变了基因表达,在2周后部分正常化.

结论:

在雾化几个月后的盐度变化会诱导大西洋鱼的分子压力和免疫反应.
富含微藻的饮食表现出对减轻这些盐度诱导的生理变化的能力有限.
需要对食策略进行进一步的研究,以支持鱼在透调节挑战期间的健康.

关键词:

功能性料是一种功能性料.免疫力是一种免疫力.微藻是一种微藻.盐度盐度盐度盐度盐度这就是鱼,鱼,鱼.烟雾化是一种消化过程.

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