日粮核苷酸对动物免疫功能的影响研究进展

核苷酸（嘌呤和嘧啶）是组成DNA和RNA单体，在体内具有重要的生理生化作用。人和动物能从头合成核苷酸。在机体迅速生长、或动物受到免疫挑战时，一些器官、组织内源合成的不能满足机体的需要。补充日粮核苷酸对于动物免疫细胞、器官的发育及维持免疫系统正常功能有积极作用。

The role of dietary sonrces of nrcleotide in immune function:A Review

Purine and pyrimidine nucleotides make up the mononeric units ofRNA and DNA,and play a major role in structural,energetic,metabolic and regulatory function.nucleoside-nucleotide can be de novo synthesis in body.The endogenous nucleoside-nucleotide supply may insufficient for some tissues and organs animal in periods of rapid growth,immune challenge states.Dietary nucleotides have beneficial effects upon development of immune cell and organs and sustaining the normal function of im-mune system