鸡内源氮损失量与内源能排出量相关性分析

Analysis of Correlativity Between the Endogenous Nitrogen Losses and Endogenous Energy Losses of Fowl

用32只400日龄海兰褐父母代种公鸡来研究鸡内源排泄物中内源氮损失量与内源能排出量的相关性。结果为:鸡内源氮损失量和内源能排出量之间呈现出强相关关系,相关系数r=0.97(P<0.01),二者的直线回归方程为:y^=21.02+36.21x,回归系数b=36.2KJ/g。表明内源排泄物中代谢粪氮的能值与尿的能值不同,粪中氮的能值高于尿中氮的能值。用内源排泄物中氮的能值代替尿的能值进行代谢能的校正更为合理。

Hy-line brown adult roosters of400-day-old were used to study the correlativity between the endogenous nitrogen losses and endogenous energy in the endogenous excreta of fowls.The main results were summarized as follows.There was significant correlativity between the endogenous nitrogen losses and endogenous energy losses in the endogenous excreta of roosters,r=0.97(P<0.01);linearity regress equation was y^=21.02+36.21x;b=36.21KJ /g.It indicated that energy of endogenous nitrogen was different to that of uric acid,the energy of endogenous nitrogen was higher.It was more reasonable to substitute the energy of uric acid with that of endogenous nitrogen losses.