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大型红沼泽鱼 (Procambarus clarkii) 的饮食胆固醇要求

Juan Tian^1,2, Wenfu Xiao^1,2, Weihua Gao²

¹Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China.

Aquaculture nutrition

|December 13, 2023

概括

确定大红沼泽 (Procambarus clarkii) 的最佳饮食胆固醇对于生长至关重要. 胆固醇水平在7.42-10.93g/kg之间可以最大限度地增加体重,并改善Procambarus clarkii的肉质.

科学领域:

水产养殖是水产养殖的一种方式.
动物营养动物营养
甲动物生理学甲动物生理学

背景情况:

食中的胆固醇对甲动物至关重要,影响生长和生理功能.
了解像Procambarus clarkii这样的物种的特定要求对于高效的水产养殖至关重要.

研究的目的:

为了确定大红沼泽 (Procambarus clarkii) 的最佳饮食胆固醇水平.
评估不同饮食中的胆固醇对生长性能,身体组成和生理参数的影响.

主要方法:

鱼被食六种饮食,胆固醇水平在2.47至14.24g/kg之间,持续8周.
分析了生长速度,料转化率,身体组成,血淋巴,肝和肌肉参数.
使用二次回归分析来确定最佳的饮食水平.

主要成果:

在11.74g/kg胆固醇时,观察到最大的体重增加和特定增长率.
在8.77g/kg胆固醇时,可以达到最佳的料转化率.
饮食中的胆固醇显著影响了原始蛋白质,脂质,胆固醇,自由脂肪酸水平,酶活性和抗氧化能力.

结论:

大型红沼泽 (Procambarus clarkii) 的最佳饮食胆固醇水平估计在7.42至10.93g/kg之间.
这种范围支持增长,改善肉的百分比和有利的生理反应.

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