1. IRTA-Ruminant Production, Animal Nutrition, Management, and Welfare Research Group, Torre Marimon, Caldes de Montbui, Barcelona, Spain
2. Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
3. Veterinary Medicine R&D, Zoetis, Parkville, Victoria, Australia
4. Veterinary Medicine R&D, Zoetis, Kalamazoo, MI
5. University of Calgary Veterinary Medicine, Calgary, AB, Canada