1. Department of Animal Science, McGill University, Ste-Anne-de-Bellevue, QCH9X 3V9, Canada
2. Lactanet (Valacta), Ste-Anne-de-Bellevue, QCH9X 3R4, Canada
3. Department of Animal Biosciences, University of Guelph, Guelph, ONN1G 2W1, Canada
4. Département des sciences animales, Université Laval, Québec, QCG1V 0A6, Canada
5. Dairy Education and Research Centre, University of British Columbia, Agassiz, BCV0M 1A1, Canada
6. Department of Population Medicine, University of Guelph, Guelph, ONN1G 2W1, Canada