Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
Sci Total Environ. 2019 Jul 1;672:1021-1032. doi: 10.1016/j.scitotenv.2019.02.270. Epub 2019 Mar 13.
Because the use of antibiotics as growth promoters was banned due to global health concerns, researchers are focusing on exploring alternative safe and effective feed additives. Rare earth elements (REEs) are located in group III of the periodic table, which includes cerium (Ce), lanthanum (La), and other elements. Recently, REEs have been involved in many medical, industrial, zootechnical, and agricultural applications. They play a pivotal role in functional and structural molecules in the biological system. Currently, in veterinary practice, REEs have been introduced as new feed additives to improve animal health and production. Based on the previous literature, REEs reportedly enhance milk, egg, and meat production. However, the controversy between adverse (e.g., toxicological and ecotoxicological) and favourable REE-associated effects has not been fully discussed. This review summarizes the relevant literature on the impacts of REEs on animal production and health; specifically, this review emphasizes the application of REEs as alternative safe feed additives used to promote animal growth and performance.
由于全球健康问题，抗生素作为生长促进剂的使用已被禁止，因此研究人员正专注于探索安全有效的替代饲料添加剂。稀土元素（REEs）位于元素周期表的第 III 族，包括铈（Ce）、镧（La）和其他元素。最近，REEs 已广泛应用于医疗、工业、动物饲养和农业等领域。它们在生物系统的功能和结构分子中起着关键作用。目前，在兽医实践中，已将 REE 作为新型饲料添加剂引入，以改善动物的健康和生产。根据以往的文献，REE 据称可提高牛奶、鸡蛋和肉类的产量。然而，有关 REE 相关的不利（例如毒理学和生态毒理学）和有利影响的争议尚未得到充分讨论。本综述总结了有关 REE 对动物生产和健康影响的相关文献；具体来说，本综述强调了 REE 作为替代安全饲料添加剂在促进动物生长和性能方面的应用。
