1. Institute of Animal Nutrition (450), Hohenheim University, D-70593 Stuttgart, Germany
2. Orffa Germany GmbH, D-46483 Wesel, Germany
3. The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05–110 Jablonna, Poland
4. Department of Cell and Molecular Biology, Lund University, S-223 62 Lund, Sweden
5. Department of Animal Physiology, Lund University, S-223 62 Lund, Sweden
6. Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 02-106 Warsaw, Poland
7. Gramineer Int. AB, Ideon beta, S-223 62 Lund, Sweden