A note on the effect of rare earth elements on the performance and thyroid hormone status of rearing piglets
D. Förster 1,   A. Berk 1,   H. O. Hoppen 2,   W. A. Rambeck 3,   G. Flachowsky 1  
More details
Hide details
Institute of Animal Nutrition, Friedrich-Loeffler-Institute (FLI), Ferderal Research Institute for Animal Health, Bundesallee 50, D-38116 Braunschweig, Germany
Institute for Food Toxicology and Chemical Analytics, University of Veterinary Medicine, Bischofsholer Damm 15, D-30173 Hannover, Germany
Ludwig-Maximilians-University, Faculty of Veterinary Medicine, Veterinärstr. 13, D-80539 Munich, Germany
G. Flachowsky   

Institute of Animal Nutrition, Friedrich-Loeffler-Institute (FLI), Ferderal Research Institute for Animal Health, Bundesallee 50, D-38116 Braunschweig, Germany
Publication date: 2008-01-15
J. Anim. Feed Sci. 2008;17(1):70–74
Rare earth elements (REE) have been used for decades in China to promote growth in plant production and farm animals. Studies are presently also being conducted under Western animal production conditions, however dose-response studies are relatively rare. In this study a total of 80 piglets were fed a diet supplemented with 0, 100, 200, 400 or 800 mg of citrate-bound rare earth elements, consisting of, %: lanthanum 30, cerium 55, praseodymium 5 and neodymium 10. The trial lasted 35 days, the initial mean body weight of the piglets was 7.2 kg. Apart from growth and feeding parameters, blood serum was analysed for T3 and T4 by radioimmunoassay (RIA). Feed intake decreased insignifi cantly with higher REE-levels. The daily weight gain of piglets amounted to 283 (control), 301 (100 mg), 254 (200 mg), 258 (400 mg) and 271 g (800 mg). Thyroid hormone levels increased with REE-supplementation. More dose-response studies will be necessary to prove the effects of REE on growth parameters and their intermediate effects.
Effect of dietary chitosan oligosaccharide complex with Ce (IV) on growth, immunity and disease resistance againstVibrio splendidusof sea cucumber,Apostichopus japonicas
Yanlong Wang, Wei Xu, Rantao Zuo, Huihui Zhou, Yang Bai, Kangsen Mai, Dongfeng Wang, Qinghui Ai
Aquaculture Research
Effects of Antibiotics, Zinc Oxide or a Rare Earth Mineral-Yeast Product on Performance, Nutrient Digestibility and Serum Parameters in Weanling Pigs
Yung-Keun Han, Philip A. Thacker
Asian-Australasian Journal of Animal Sciences
Impact of rare earth element-enriched yeast on growth performance, nutrient digestibility, blood profile, and fecal microflora in finishing pigs
L. Cai, C.M. Nyachoti, I.H. Kim, J. Plaizier
Canadian Journal of Animal Science
Impacts of rare earth elements on animal health and production: Highlights of cerium and lanthanum
Sameh Abdelnour, El-Hack Abd, Asmaa Khafaga, Ahmed Noreldin, Muhammad Arif, Maria Chaudhry, Caterina Losacco, Ahmed Abdeen, Mohamed Abdel-Daim
Science of The Total Environment
Effect of graded levels of rare earth elements in diets of fattening bulls on growing and slaughtering performance, and on nutrient digestibility of wethers
Annett Schwabe, Ulrich Meyer, Gerhard Flachowsky, Sven Dänicke
Archives of Animal Nutrition
Effects of Maternal Supplementation with Rare Earth Elements during Late Gestation and Lactation on Performances, Health, and Fecal Microbiota of the Sows and Their Offspring
Yi Xiong, Jiaman Pang, Liangkang Lv, Yujun Wu, Na Li, Shimeng Huang, Zhi Feng, Ying Ren, Junjun Wang
Prenatal exposure of rare earth elements cerium and ytterbium and neonatal thyroid stimulating hormone levels: Findings from a birth cohort study
Yunyun Liu, Mingyang Wu, Lina Zhang, Jianing Bi, Lulu Song, Lulin Wang, Bingqing Liu, Aifen Zhou, Zhongqiang Cao, Chao Xiong, Senbei Yang, Shunqing Xu, Wei Xia, Yuanyuan Li, Youjie Wang
Environment International
Perspectives for rare earth elements as feed additive in livestock — A review
Hujaz Tariq, Amit Sharma, Srobana Sarkar, Lamella Ojha, Ravi Pal, Veena Mani
Asian-Australasian Journal of Animal Sciences
Rare earth elements exposure and the alteration of the hormones in the hypothalamic-pituitary-thyroid (HPT) axis of the residents in an e-waste site: A cross-sectional study
Chen Guo, Yongjie Wei, Lailai Yan, Zhigang Li, Yan Qian, Huijie Liu, Zhipeng Li, Xiaoqian Li, Zhanshan Wang, Jingyu Wang
Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis
Franca Tommasi, Philippe Thomas, Giovanni Pagano, Genevieve Perono, Rahime Oral, Daniel Lyons, Maria Toscanesi, Marco Trifuoggi
Archives of Environmental Contamination and Toxicology
Dietary Azomite, a natural trace mineral complex, improved the growth, immunity response, intestine health and resistance against bacterial infection in largemouth bass (Micropterus salmoides)
Xiaoying Xu, Xiaoqin Li, Zhen Xu, Wenxiang Yao, Xiangjun Leng
Fish & Shellfish Immunology