1. Laboratory for Animal Nutrition and Animal Product Quality (LANUPRO), Faculty of Bioscience Engineering, Ghent University, Proefhoevestraat 10, B-9090 Melle, Belgium
2. Food and Feed Quality Unit, Valorisation of Agricultural Products Department, Walloon Agricultural Research Centre, Chaussée de Namur 24, B-5030 Gembloux, Belgium
3. Department of Applied Mathematics, Biometrics and Process Control, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium