温度对瓦氏黄颡鱼幼鱼氨氮排泄的影响

Effects of Water Temperature on Ammonia-N Excretion and Body Compositions in Pelteobagrus vachelli

以瓦氏黄颡鱼幼鱼为研究对象,测定了温度对其氨氮排泄率的影响。试验结果表明:在不同的水温(10、15、20、25、30℃)条件下,瓦氏黄颡鱼幼鱼的氨氮排泄率分别为2.69、3.92、5.72、6.96、8.71 mg/(kg.h),氨氮排泄率随温度的升高而升高,其二者的回归关系可用幂函数方程描述:y=0.2128x1.086(n=48,R2=0.883),F检验表明相关性极显著(F<F0.01)。

An experiment was conducted to evaluated the effect of temperature on ammonia-N excretion rates and creasing with the temperature increasing, and the relationship between ammonia-N excretion rates and temperature can be described as： y = 0.2128x ^1.086 （n =48,R^2 =0.883, P 〈0.01）.