期刊论文

中文

水产学报

1000-0615

2024

48

3

143-153

10.11964/jfc.20211113150

国家大宗淡水鱼产业体系常德综合试验站项目（CARS-45-48）；

本校为第一机构

为研究饲料中添加胍基乙酸（GAA）对斑点叉尾鮰生长、肝脏抗氧化以及肌肉能量代谢的影响。本实验共设计4个实验组，分别投喂含0（对照组）、300、600和900 mg/kg GAA（GAA0、GAA300、GAA600和GAA900）的等能等氮饲料。实验鱼初始体质量为（36.67±0.00）g，实验周期8周。结果显示，各添加GAA组末均重（FBW）和增重率（WGR）较对照组均有提高趋势，但差异不显著；添加GAA显著影响脏体比（VSI）和腹脂率（IPF），在GAA300组VSI和IPF最低；以IPF和VSI为评价指标，通过二次函数分析获得GAA最适量分别为275和150 mg/kg。添加GAA对全鱼水分、粗蛋白、粗脂肪和灰分均无显著影响，对肌肉中游离氨基酸和脂...

A 8-week feeding trial was conducted to study the effect of dietary guanidinoacetic acid (GAA) on the growth performance, hepatic anti-oxidative capacity and muscle energy metabolism of channel catfish (Ictalurus punctatus). Four isonitrogenous and isocaloric experimental diets with 0 (control diet), 300, 600, and 900 mg/kg GAA (GAA0, GAA300, GAA600, and GAA900) were formulated. The results showed that appropriate dietary GAA could improve the average final body weight (FBW) and weight gain rate (WGR), but not significantly. While the visceroso...