Confl icts of interest statement
There are no conflicts of interest.
Acknowledgements
We gratefully acknowledge Lars B. Gildberg, Ole H. Olsen,
Torkild N. Jakobsen, technical staff at the dairy cow facility
Aarhus University for skillful technical assistance. We thank
Ines Mittner, University of Zurich for assistance during analysis
of bone markers. Funding was provided by The Ministry of
Food, Agriculture and Fisheries and Department of Animal
Science, Aarhus University.