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  • Uğur SEVİLMİŞ Doğu Akdeniz Tarımsal Araştırma Enstitüsü, ADANA



Rare earths elements, feed, animal production


In nature, rare earths elements occur in multiple minerals. Today, they are used in medical technology, nuclear engineering, automobile industry, military devices and even in spacecraft. Furthermore, rare earth-containing drugs are used for the treatment of some health issues. In the future, among other uses, rare earths might be involved in cancer therapy, treatment and prevention of osteoporosis and atherosclerosis as well as organ transplantation. In China, rare earths have been successfully used at low concentrations as feed additives and fertilizers for decades. The results from studies from this country indicate that the use of rare earth elements improves liveweight gain and feed conversion in animals. The mechanism of action of these elements is not well understood but it is thought that they develop their activity in the digestive tract since very little is absorbed. Rare earth elements might be of interest in animal production as a new, safe and inexpensive alternative growth promoter. This review analysis the accessable literatre related to rare earth element usage in animal feed.


Hanczakowska E Hanczakowski P 2010. Rare earth elements in farm animal feeding. Wiadomości Zootechniczne, 48(1): 15-20.

Rambeck W.A Wehr U 2005. Use of rare earth elements as feed additives in pig production. Pig News and Information, 26(2): 41-47

Redling K 2006. Rare earth elements in agriculture with emphasis on animal husbandry (Doctoral dissertation, lmu).

Abdelnour S.A El-Hack M.E A Khafaga A.F Noreldin A.E Arif M Chaudhry M.T Abdel-Daim M.M 2016. Impacts of rare earth elements on animal health and production: highlights of cerium and lanthanum. Science of the Total Environment 672: 1021-1031.

Squadrone S Stella C Brizio P Abete M.C 2016. A baseline study of the occurrence of rare earth elements in animal feed. Water, Air & Soil Pollution, 229(6): 190.

Tariq H Sharma A Sarkar S Ojha L Pal R.P Mani V 2016. Perspectives of rare earth elements as feed additive in livestock: A review. Asian-Australasian Journal of Animal Sciences.

Yang W.Z Laarman A He M.L Liu Q 2009. Effect of rare earth elements on in vitro rumen microbial fermentation and feed digestion. Animal feed science and technology, 148(2-4), 227-240.

Kraatz M Taras D Männer K Simon O 2006. Weaning pig performance and faecal microbiota with and without in‐feed addition of rare earth elements. Journal of Animal Physiology and Animal Nutrition, 90(9‐10): 361-368.

Xun W Shi L Hou G Zhou H Yue W Zhang C Ren Y 2014. Effect of rare earth elements on feed digestibility, rumen fermentation, and purine derivatives in sheep. Italian Journal of Animal Science, 13(2): 3205.

Eleraky A.W Rambeck W 2011. Study on performance enhancing effect of rare earth elements as alternatives to antibiotic feed additives for Japanese quails. The Journal of American Science, 7(12): 211-215.



How to Cite

Uğur SEVİLMİŞ. (2017). THE USE OF RARE EARTH ELEMENTS IN ANIMAL NUTRITION. ISPEC Journal of Agricultural Sciences, 1(1), 1–6.