Prof. Georgios Arsenos has over 25 years of experience in Animal Science research and education. He is an academic with well-established international links in research and extension services to industry. His scientific expertise includes veterinary medicine, animal breeding and genetics, data analysis and sustainability of livestock production systems. He held research and academic positions in the UK and has been leader or partner in several National, industry and EU-funded research projects (104 research projects; coordinator in one EU funded). Highlights of service outside the university include numerous seminars for farmers, regular farm visits to individual farms, farm cooperatives and dairies that have a contract for extension services with the Laboratory of Animal Husbandry. He is author of one book and co-author in 2 books and several technical papers as well as more than 136 papers in refereed journals (1745 citations, h-index: 23). He participated in numerous national and international conferences either as invited speaker or lecturer with over 300 presentations. He acts as reviewer in several scientific journals. Assoc. Professor, Ilias Giannenas, DVM, PhD, Dip ECPVS, Director of Laboratory of Nutrition, is a veterinarian and Associate Professor at the School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki. Formerly he served as Lecturer in the Veterinary Faculty of University of Thessaly. He did sabbatical studies in Newcastle University to investigate the interaction between dietary fibre and coccidiosis in broiler chickens. He is particularly interested in issues of applied poultry nutrition, the use of aromatic plants, plant extracts and essential oils as alternative growth promoters or natural anticoccidials. He is co-author of 3 books, 12 book chapters and over 100 papers in refereed journals. He regularly serves as invited speaker in national or international congressesand presented more than 100 conference papers. He has been scientifically responsible or member of the research group in more than 30 projects and established collaboration with the feed and feed additive industry. He served as reviewer and editorial board member for several journals and evaluated national and international projects. His work has more than 3000 citations and an h-index of 33.