As a kind of active substance,the exogenous nucleotides can affect the function of stomach and intestines,the development of hepar ,the metabolism of lipid and the immune system of creature.

• 介绍了外源核苷酸作为一种活性物质,对胃肠道的功能、肝脏生长与发育、脂质代谢、动物体免疫系统等具有重要影响。