1. Faculty of Pharmaceutical, Biomedical and Veterinary Sciences; Laboratory of Applied Veterinary Morphology, Embryology and Pathology; Department of Veterinary Sciences; University of Antwerp; Wilrijk Belgium
2. Institute of Animal Nutrition; Sichuan Agricultural University; Yaan Sichuan China
3. Faculty of Biosciences and Landscape Architecture; University College Ghent; Ghent Belgium