References
- Council Directive (70/524/EEC) of 23 November 1970 concerning additives in feeding-stuff, available at: <http://cemu10.fmv.ulg.ac.be/OSTC/70524/70524additifs/70524trace.htm>
- Jiang , Q.Y. , Fu , W.L. and Chen , L.J. 1996 . Effects of high dietary iodine on the reproductive performance of hens . Journal of South China Agricultural University , 17 : 33 – 38 .
- Kaufmann , S. , Wolfram , G. , Delange , F. and Rambeck , W.A. 1998 . Iodine supplementation of laying hen feed: a supplementary measure to eliminate iodine deficiency in humans? . Zeitschrift für Ernahrungswissenschaft , 37 : 288 – 293 .
- Kroupova , V. , Kratochvil , P. , Kaufmann , S. , Kursa , J. and Travnicek , J. 1998 . Metabolic effects of giving additional iodine to laying hens . Veterinarni Medicina , 43 : 207 – 212 .
- Kroupova , V. , Travnicek , J. , Kursa , J. , Kratochvil , P. and Krabacova , I. 1999 . Iodine content in egg yolk during its excessive intake by laying hens . Czech Journal of Animal Science , 44 : 369 – 376 .
- Ordinance of the Ministry of Agriculture of the Czech Republic No. 16/2000 Prague 2000 available at: <http://www.sagit.cz/Sbirka/ksbdefault.htm>
- Snedecor G. Cochran W. 1967 Statistical Methods The Iowa State University Press