稀土元素在饲料工业中的应用进展

Application Progress of Rare Earth Elements in Feed

稀土元素作为动物饲料添加剂，具有促进畜禽生长、减少死亡率、增强免疫等生理作用，在饲料工业中的应用前景广阔。本文论述了稀土添加剂的种类、代谢机制、作用机理以及在饲料工业中的应用现状。

Rare earth elements as an animal feed additive can promote the growth of livestock and poultry, reduce mortality and enhance immunity. In this paper, the types, metabolic mechanism, and application in feed industry of rare earth elements were discussed.