1. UNESP, Universidade Estadual Paulista, Department of Animal Science, Jaboticabal, São Paulo, 14884-900, Brazil
2. Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
3. Animal Nutrition, Wageningen UR Livestock Research, Wageningen, the Netherlands