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饮食中的粉水平调节了鱼 (Siniperca chuatsi) 的生长性能,葡萄糖利用率和脂质生成
Zhihao Han1, Shiwen Chen1, Ye Gong1
1Ministry of Agriculture and Rural Affairs On Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, 201306, China.
Fish physiology and biochemistry
|October 30, 2025
概括
鱼表现出最佳的生长和碳水化合物耐受性,饮食中含有13.03%的粉. 这一水平支持碳水化合物的转化为脂质,影响鱼类的健康和新陈代谢.
科学领域:
- 水产养殖和鱼类营养
- 动物生理学和新陈代谢
背景情况:
- 饮食中的碳水化合物水平显著影响鱼类的生长,健康和代谢过程.
- 了解最佳的粉利用对于高效的水产养殖料配方至关重要.
研究的目的:
- 确定最佳的食粉水平,以促进鱼的生长和葡萄糖脂代谢.
- 研究鱼中粉利用和碳水化合物耐受性背后的分子机制.
主要方法:
- 五种饮食中可消化的粉含量各不相同 (6.56%至19.57%),给鱼了8周.
- 分析了生长性能,肝脏和肌肉脂质含量以及肝脏糖原.
- 评估了基因表达 (胰岛素信号传递,糖解,葡萄糖生成) 和蛋白质表达 (PI3K/Akt通路,FoxO1,ChREBP,SREBP-1).
主要成果:
- 在13.03%的食粉下观察到最佳的生长和碳水化合物耐受性.
- 增加的粉水平上调了胰岛素信号和糖解基因,同时降低了葡萄糖生成的调节.
- 参与葡萄糖和脂质代谢的关键蛋白质被调节,表明碳水化合物转化为甘油三酸的增强.
结论:
- 鱼具有很高的碳水化合物利用能力,其中13.03%的粉促进了最佳生长.
- 食粉通过调节关键信号通路和基因/蛋白质表达,影响葡萄糖-脂质代谢.
- 这些发现为制定普通话鱼水产养殖中的实用饮食提供了宝贵的见解.
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