Biological Activity of Rare Earth-Chitosan Chelate and Its Application in Livestock and Poultry Production

稀土壳糖胺螯合盐(Rare earth-chitosan chelate, RECC)是由稀土离子和壳糖胺分子经过氨基(-NH2)和羟基(-OH)的配位螯合效应构成的一种新型饲料添加剂，兼具稀土和壳糖胺的生物学活性。RECC具有抑菌、免疫调节、抗氧化、调节肠道功能等多种生物学活性。本文综述了RECC的生物学活性及其在畜禽生产中应用的研究进展。Rare earth-chitosan chelate (RECC) is a novel feed additive composed of rare earth ions and chitosan molecules that undergo coordination chelation effects through amino (-NH2) and hydroxyl (-OH) groups. RECC combines the biological activities of rare earth and chitosan. RECC has various biological activities, such as antibacterial, immune regulation, antioxidant, and regulation of intestinal function. This article reviews the biological activity of RECC and its research progress in the application of livestock and poultry production.