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有效地用陆地化合物蛋白质替代食鱼饭提高了大嘴鱼的生长,健康和蛋白质合成

Fang Chen¹, Zhirong Ding¹, Zeliang Su¹

¹College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.

Animals : an open access journal from MDPI

|August 10, 2024

概括

大口鱼饮食中的食鱼粉可以使用陆地化合物蛋白减少到18%. 这种替代支持鱼类的健康,消化和蛋白质合成,而不会影响生长性能.

科学领域:

水产养殖营养水产养殖营养
鱼类生理学鱼类生理学
可持续的料发展

背景情况:

食鱼粉 (FM) 对食肉鱼至关重要,但为了可持续性,其替代是必要的.
不适当的FM替代可以对鱼的生长,健康和新陈代谢产生负面影响.
大鱼 (Micropterus salmoides) 是食肉鱼,需要最佳的营养.

研究的目的:

评估陆地复合蛋白 (Cpro) 在减少幼大鱼的食性 FM 的有效性.
评估不同FM水平对生长,料利用,生理参数和肌肉质量的影响.
调查FM减少背后的分子机制对肠道健康和蛋白质合成的影响.

主要方法:

四种异蛋白和异脂饮食的配方,FM水平在36%至18%之间,包括Cpro.
在81天的时间里,对幼年大鱼进行了养试验.
分析生长性能,料效率,形态指标,肌肉组成,血清生物化学,肠道酶活动和基因表达.

主要成果:

在饮食组之间没有观察到生长性能,料效率或肌肉质感的显著差异.
养18%FM的鱼类显示肌肉蛋白含量增加和ATP/AMP比率增加,与36%FM相比,肌肉糖原减少.
较低的FM饮食观察到肠道炎症前导细胞因子表达的减少和增强的抗炎性细胞因子和紧结基因表达.

结论:

大口的食鱼粉可以有效地减少到18%,使用陆地化合物蛋白 (Cpro).
这种FM减少对鱼的健康,消化和蛋白质合成有好处,支持生长.
这些发现支持通过替代蛋白质来源的可持续水产养殖实践.

关键词:

微型鱼类 (Micropterus salmoides) 是一种鱼类.鱼粉替代品鱼粉替代品增长的增长增长的增长增长的增长.健康的健康健康的健康.蛋白质合成蛋白质合成

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