Acknowledgements
The authors thank radiographers Lena Stenhaug and Bernadette Helmer at the Norwegian University of Life Sciences. We also thank Kalnes upper secondary school and the always generous Gunhild Dangstorp for letting us borrow the calves for the experiment, and Miriam Cohen for caring for the calves during the experiment. A final thank you goes to Tilde Sæther, whose student project on abomasal capacity spawned the idea of this study. The project was financed by Foundation for Research Levy on Agricultural Products (FFL) and Agricultural Agreement Research Fund (JA) through Norwegian Research Council (project number 190424) and the Norwegian Veterinary Institute (project number 10101).