Specialized Sessions

The 28 specialized sessions will host specialists addressing topics relevant to the WPSA working groups. These will take place on Tuesday, 9 August 2022 and Wednesday, 10 August 2022 in the afternoon.
Session titleIntervention titleInvited speaker
D 2-1 Nutrition - Feed technologyFermentation process and functional feedsRicarda ENGBERG (DK)
D 2-2 Molecular GeneticsTowards sequencing the genomes for all extant bird species, the progress of B10K projectGuojie ZHANG (DK)
D 2-3 Meat quality - slauhter and processingTrends and perspectives for poultry processed productsShai BARBUT (CA)​
D 2-6 Mineral nutritionTowards available calcium requirementsRoselina ANGEL (US)​
D 2-7 WaterfowlEnvironmental impact of different duck farming systems in IndonesiaHardi PRASETYO (ID)​
D 3-1 Nutrition : physiology of nutritionInfluence of digestive kinetics on broiler performanceAlfons JANSMAN (NL)​
D 3-3- Construction of Egg qualityRecent advances on the involvement of extracellular vesicles during avian eggshell formationJoël GAUTRON (FR)
D 3-5 Ingestion and digestionFibres: challenges and opportunities for the digestive tractAmy MOSS (AU)​
D 3-7 : Small Scale Family Poultry FarrmingOutcome of a Survey on Strategies to Improve Productivity on Small-Scale Family Poultry FarmsAlan GIBBINS (NZ)​
D 4-1 Nutrition - Feeding in alternative systemsRecent advances in waterfowl nutritionLayi ADEOLA (US)​
D 4-3 Quality of Egg productsEgg quality in cage free systemsJan VAN ESCH (NL)​
D 4-4 Physiology (2)Neural and endocrine mechanisms that underpin feeding behaviour and metabolismIan DUNN (UK)​
D 4-6 TurkeysTurkey Production and Health: Current challengesMohamed HAFEZ (NZ)​
D1-3 Construction of meat QualityNew insights on breast muscle fibrillar collagen organization in broilers: Implications on meat quality propertiesSandra VELLEMAN (US)​
D1-4 Welfare and behaviourRecent progress on feather pecking behavior and perspectives to avoid beak trimmingBas RODENBURG (NL)​
D4-2 Managing Poultry Welfarekilling for slaughter or other purposesMohan RAJ (UK)​
D 1-6 Protein nutritionImpact of Insect-Based Diets on Digestibility, Performance and Product QualityAchille SCHIAVONE (IT)​
D 1-5 Reproductive physiologyMolecular mechanisms of acrosome reaction in chicken spermAtushi ASANO (JN)​
D 1-1 Nutrition - FeedstuffsUse of algae in poultry nutritionEdouard COUDERT (FR)​
D 3-6 Economy & marketingTitle to be communicatedFrançois CADUDAL (FR)​
D 1-7 EducationRole, activities, achievements of WG11 'Poultry Education and Information'Servet YALCIN (TR)​
D 1-2 Quantitative GeneticsGenetics of adaptation, robustness, resilienceSusan LAMONT (US)​
D 3-4 Physiology (1)Early-life environment and long-term programmingTom PORTER (US)​


Prof. Achille Schiavone, poultry nutritionist, is graduated in Veterinary Medicine from Faculty of Veterinary Medicine, Turin University (Italy) in 1998. He obtained his PhD in Poultry Production at University of Pisa (Italy) in 2002. Since 01/11/2001 he got a permanent position as Researcher in Animal Nutrition at Turin University and since 01/11/2011 he got a permanent position as Associate Professor in Animal Nutrition at the same University. He was Invited researcher at INRA-Tours (France) in 2002-2003 and invited professor at University of Barcelona (Spain) (2005 and 2006) and Murcia (Spain) (2010-2012), Currently (over all 2020) he is in sabbatical at University of Murcia where I got a Seneca grant, to study the effect of different diets on insect's substrate.The research activity is mainly focused on poultry nutrition and in the last 5 years coordinated several studies on the effect of different insect meals (Tenebrio molitor and Hermetia illucens) on poultry digestibility (chickens and ducks), welfare, performance and meat quality. He is member of the PhD School in Veterinary Science and coordinator of the international Master in Animal Science of the University of Torino (Italy).The activity in the Developing Countries is related to projects about the improvement of animal welfare, animal nutrition and animal productions (for poultry and ruminants) in Ecuador, Senegal, Burkina-Faso and Guinea-Bissau in collaboratiotion with NGO (AVEC -; CISV -; ManiTESE -, he has published more than 150 papers (87 ISI; h index: 19; total citatation: 1107) and compiled 4 book chapters.


Servet Yalcin is a full-time Professor at the Ege University, Faculty of Agriculture, Department of Animal Science. Her responsibilities in the department include teaching and research. Her research interests focus on embryonic development, incubation, stress physiology, and meat quality in broilers. She supervised 14 theses. She is author and co-author of numerous articles in peer-reviewed scientific journals and participated in numerous regional, national and international scientific meetings as a speaker and invited speaker. For many years she has been a member of the World’s Poultry Science Association (WPSA), Mediterranean Network of WPSA, working groups 5 (Meat Quality) and 11 (Education and Information) of the European Federation of WPSA. She chaired WG 11 from 2004 to 2010.


Associate Professor at Aarhus University, Dept. of Animal ScienceMy area of research is focused on the microbial fermentation in feed and in the digestive tract of monogastric animals (pigs and poultry) with special reference to broilers.The research work includes studies on the composition of the intestinal microbiota as well as the dietary factors influencing the microbial development and fermentation in the digestive tract. The aim of the work is to improve animal growth and gastrointestinal health without the use of antibiotic growth promoters.Education1986: Cand. med. vet. Ludwig-Maximilians-Universität (LMU) Munich, Germany1988: Dr. med. vet. (LMU) Munich. Germany

Guojie ZHANG

Guojie Zhang completed his Bachelor's degree at Xiamen University and received his PhD degree at Kunming Institute of Zoology, the Chinese Academy of Sciences in 2010. He received Marie-Curie International Fellowship from 2012-2014, and started his tenure-track Assistant Professor position at Department of Biology, University of Copenhagen in 2015. He was promoted as Associate Professor and further as Full Professor in 2017. Guojie Zhang is also the Associate Director of China National Genebank and Adjunct Professor in Kunming Institute of Zoology at Chinese Academy of Sciences. The major research interests in his group are on biodiversity genomics and genome evolution. Evolutionary biologists are often fascinated by the rich diversity of creatures on earth for their extraordinary variations on morphology, physiology, and behavior. Prof. Zhang tackles the biodiversity and evolutionary questions with large-scale comparative genomics and has revealed the molecular mechanisms underlying speciation and adaptation for a broad spectrum of animal taxa. His group is also trying to establish ants as model systems for eco-evo-devo study of social behavior. He has been (co-)leading several international consortiums on genomics including the Bird 10K (, Genome 10K (, Global Ant Genomics Alliance (, Ruminant Genome Project and Earth Biogenomic Program. His researches frequently appeared in high profile journals like Science, Nature, Nature series, and PNAS.

Roselina ANGEL

Dr. Roselina Angel received her Ph.D. in Poultry Nutrition from Iowa State University. She worked as a Research Manager at Purina Mills for 9 years after which she joined the University of Maryland, Department of Animal and Avian Sciences. Her current position is Professor of poultry nutrition and her appointment is research and extension. She served as Co-editor of the nutrition section of the Journal of Applied Poultry Research from 2009 to 2011 and four 2-year terms as an Associate Editor for the Journal of Poultry Science. Dr. Angel was a member of the Poultry Science Association’s Board of Directors. She has been a member of the program committee for the Poultry Science’s Informal Nutrition Conference since1998 and now Co-chairs this conference. She has been a panel member for USDA’s National Research Initiative competitive grants program and an Ad Hoc reviewer for USDA-NRI, the Binational Agricultural Research and Development Fund, and other funding agencies. Dr. Angel has published seven book chapters, 160 articles in refereed journals and more than 250 abstracts. Since 2000 she has given more than 250 invited presentations, more than half of which have been presented overseas. In 2002 she was named to the Committee on Animal Nutrition (CAN), at that time the only standing committee of the National Research Council of the National Academy of Sciences. Dr. Angel has been the recipient of several awards including the National Chicken Council, Broiler Research Award and the American Feed Industries Poultry Nutrition Award and the Merrill Scholar Faculty Advisor award. She was named a Fellow of the Poultry Science Association in 2016 Dr. Angel’s recent focus has also been on improvement in phosphorus nutrition through optimizing calcium use as well as in optimizing tools to maximize economic nutrient conversion efficiency Her research has had a direct measurable impact on water and air quality and the environmental and economic sustainability of the poultry industry.


Dr Hardi Prasetyo completed his initial study at the Institut Pertanian Bogor, Indonesia, and then Master degree at the University of Sydney, Australia. He went on to earn a PhD in quantitative genetics and livestock breeding at North Carolina State University, USA. Until 2016 he was a senior research scientist at the Indonesian Research Institute for Animal Production, Bogor, under the Indonesian Centre for Animal Research and Development. During his active roles at the Research Institute he was involved mainly in the development of commercial strains of layer ducks as well as meat type ducks. For the layer ducks he and his team used Indonesian local breeds and created a hybrid with a significant heterosis level in egg production, for commercial production. For the meat type ducks, he was using a combination between Pekin and local White Mojosari ducks for producing medium sized carcasses. He was also involved in the restructuring of duck production in Indonesia from extensive to intensive production system for improving farmers’ welfare, as well as controlling the Avian Influenza outbreak. Dr Hardi Prasetyo is currently the Chairman of the World Waterfowl Working Group of the Asia-Pacific Federation of WPSA.


Professor Layi Adeola received undergraduate degree in Animal Science with first class honors from the University of Ife, Nigeria; M.S. and Ph.D. degrees with distinction from the University of Guelph, Canada. He is currently a professor in the Department of Animal Sciences at Purdue University, and has authored or co-authored more that 260 refereed papers and more than 250 other publications. Professor Adeola has developed an internationally-recognized research program in energy and nutrient utilization of non-ruminant animals. His research has led the way for cost-effective diet formulation strategies for non-ruminant animals that improve the retention of energy, phosphorus, and nitrogen. Professor Adeola served on the National Academy of Sciences Committee that wrote the 11th Revised Edition of the Nutrient Requirements of Swine (NRC, 2012). He served as section editor for Journal of Animal Science, Animal Nutrition, Canadian Journal of Animal Sciences; and on the editorial board of Poultry Science. Professor Adeola received the American Feed Industry Association (AFIA) Poultry Nutrition Research award in 2005; the Maple Leaf Duck Research Award in 2007; the AFIA Non-ruminant Nutrition Research Award in 2007; the Evonik Poultry Research Award in 2010 and the National Broiler Chicken Council Research Award in 2012.


Bas Rodenburg is Professor in Animal Welfare at the Faculty of Veterinary Medicine of Utrecht University in The Netherlands. He is also Special Professor at the Adaptation Physiology Group of Wageningen University. He coordinates research and education in animal welfare. The research of Bas Rodenburg aims at improving the methodology for assessment of animal welfare, supported by sensor technology. He mainly wants to focus on behavioural indicators and methods where the animals themselves are ‘asked’ how they experience their living conditions. Bas Rodenburg obtained his PhD on feather pecking in laying hens in Wageningen in 2003 and since then he has been involved in feather pecking research. He has combined more basic approaches focusing on understanding the underlying mechanisms with more applied approaches focusing on successfully keeping flocks with intact beaks in non-cage systems. He is currently involved in the EU projects FreeBirds, ChickenStress and PPILOW, all focused on improving laying hen welfare and he recently acted as Vice Chair of the COST Action GroupHouseNet.


PhD in Life Science Currently Postdoctorant on poultry nutrition : effect of algal extracts


Susan Lamont is a C.F. Curtiss Distinguished Professor in the Department of Animal Science at Iowa State University, where she has been on the faculty since 1983. She leads an active research program to determine the molecular genetic control of important biological traits of poultry, especially the traits related to infectious disease and environmental stressors. She enjoys extensive national and global research collaborations with colleagues in academics and industry. Her research group has published over 200 peer-reviewed journal papers and invited book chapters on poultry. Lamont is very engaged in training the next generation of scientists and leaders in poultry genetics and immunology. She is an elected Fellow of three professional societies: the Poultry Science Association, the International Society of Animal Genetics, and the American Association for the Advancement of Science.

Atushi ASANO

Academic ranks and position 2005-2008 Postdoctoral Associate, College of Veterinary Medicine, Cornell University 2008-2012 Research Associate, College of Veterinary Medicine, Cornell University 2012- Assistant Professor, Faculty of Life and Environmental Sciences, University of Tsukuba, Japan Recent Publications Setiawan R, Priyadarshana C, Tajima A, Travis AJ, Asano A Localisation and function of GLUT1 glucose transporter in chicken (Gallus gallus domesticus) spermatozoa: relationship between ATP production pathways and flagellar motility. Reproduction, Fertility and Development 32: 697-705, 2020 Ushiyama A, Priyadarshana C, Setiawan R, Miyazaki H, Ishikawa N, Tajima A, Asano A. Membrane raft-mediated regulation of glucose signaling pathway leading to acrosome reaction in chicken sperm. Biology of Reproduction 100: 1482-91, 2019 Priyadarshana C, Tajima A, Ishikawa N, Asano A. Membrane Rafts Regulate Sperm Acrosome Reaction via cAMP-dependent Pathway in Chickens (Gallus gallus domesticus) Biology of Reproduction 99: 1000-9, 2018 Asano A, Roman HB, Hirschberger LL, Ushiyama A, Nelson JL, Hinchman MM, Stipanuk MH, Travis AJ. Cysteine dioxygenase is essential for mouse sperm osmoadaptation and male fertility. FEBS Journal 285: 1827-39, 2018 Ushiyama A, Tajima A, Ishikawa N, Asano A. Characterization of the functions and proteomes associated with membrane rafts in chicken sperm PLoS One12:e0186482, 2017 Ushiyama A, Tajima A, Ishikawa N, Asano A. Modification of membrane cholesterol and desmosterol in chicken sperm improves post-thaw survival and prevents impairment of sperm function after cryopreservation Reproduction, Fertility and Development 30:591-599, 2017


Dr. Tom Porter received his Ph.D. in Animal Physiology from the University of Minnesota in 1988. He conducted research as a Postdoctoral Fellow in the Department of Anatomy & Cell Biology at the Medical University of South Carolina. In 1993, he joined the Department of Poultry Science at Texas A&M University as an Assistant Professor, and in 1997, he was recruited to the Department of Animal and Avian Sciences at the University of Maryland, where he was subsequently promoted to Associate Professor and Professor. Dr. Porter has served the Poultry Science Association for more than 20 years as Associate Editor, Section Editor, and Editor-in-Chief of the journal Poultry Science. Dr. Porter’s research interests center on molecular and cellular endocrinology in poultry. Early in his career, he demonstrated that the production of steroid hormones in the ovaries of birds requires three different cell types, a situation which is different from that in mammals. One major focus of his research over the past 26 years has been on the mechanisms controlling cellular differentiation within the anterior pituitary gland during chick embryonic development. The overall goal of this research is to improve growth characteristics in broiler chickens through an increased understanding of the regulation of the bird’s own growth hormone production. Dr. Porter’s group has developed a working model for the regulation of growth hormone cell differentiation that involves hormones from other endocrine glands as well as nuclear transcription factors and signal transduction cascades. A second major focus in Dr. Porter’s laboratory has included genome-wide analysis of gene expression in the neuroendocrine system. The long-term goal of this research is to increase our understanding of global patterns of gene expression in the hypothalamus and pituitary gland and to identify the genes and gene networks controlling growth rate, body composition and feed intake in broiler chickens. Dr. Porter is the author of 101 refereed scientific papers, 22 book chapters or reviews, and 155 abstracts. His publications have been cited more than 2,000 times. Dr. Porter was named Fellow of the Poultry Science Association in 2016.


In 1995, Dr. Velleman accepted an assistant professor position with The Ohio State University Animal Sciences Department to study the role of the extracellular matrix in muscle development and growth in poultry. Her research at Ohio State has focused on the molecular and cellular mechanisms regulating muscle growth in chickens and turkeys with an emphasis on extracellular matrix gene expression. Her studies have included: 1) the regulation of muscle growth and structure by the differential expression of extracellular matrix genes; 2) identification of maternal inheritance of breast muscle structure; 3) the involvement of the extracellular matrix in meat tenderness; 4) the effects of thermal stress and nutritional regime on muscle growth mechanisms mediated by avian adult myoblasts and how to mitigate adverse effects of climate change on meat quality; and 5) the association of breast muscle myopathies to muscle growth. Dr. Velleman’s research has been recognized by her receiving the Poultry Science Association Inc., Research Award in 1998, 2006 the National Turkey Federation Research Award, 2008 the Embrex Fundamental Science Award, 2009 the Evonik Degussa Achievement Award, 2009 The Ohio State University Gamma Sigma Delta Research Award, 2009 the Ohio Poultry Association Service Award, ranking of #1 globally in turkey avian physiology since 2013, and in 2014 The OSU/OARDC Distinguished Senior Faculty Research Award. In addition to Dr. Velleman’s scientific achievements, she is active in helping females and minorities succeed in the agricultural sciences. To this end, she developed and led the Gender Initiative for the College of Food and Agricultural and Environmental Sciences at The Ohio State University.


Senior scientist at Wageningen Livestock Research in Wageningen, The Netherlands. After graduating from the Wageningen University in 1987, he obtained his PhD at the same university in 1993 on a thesis entitled “Tannins in feedstuffs for simple-stomached animals”. He was employed from 1993 till 2003 by TNO (Netherlands Organization for Applied Scientific Research) as scientist animal nutrition. Since 2003 he is working at Wageningen Livestock Research, The Netherlands as senior scientist animal nutrition (pigs and poultry). His main areas of expertise are the nutritional evaluation of feed ingredients, digestive physiology, amino acid requirements and metabolism, and nutrition and health in pigs and poultry.


I'm research director and co-leader of the team "Egg defenses, enhancement, evolution". My research focuses on table eggs. We are studying its characteristics to meet the needs of consumers and producers and also to enhance the constituents of the egg for food and non-food purposes. I work more particularly on biochemistry and molecular biology related to the formation of eggs and their qualities. I have studied the formation of shells and the identification of proteins from its organic matrix, involved in the calcification process. I participated and coordinated several national and international research programs. My research is also focused on the high throughput methodologies used to identify and characterize the biological activities linked to the egg's natural defenses. I have published more than 70 publications in international scientific journals, 12 book chapters, and have been invited to present my results at more than 30 congresses and I count about 120 papers at conferences.


Dr Moss is a postdoctoral fellow researching nutritional strategies to improve the efficiency and sustainability of chicken-meat production. Dr Moss’ current research projects include assessing the impact of variability in feed ingredients on diet formulation and profits, building a database of nutrient specifications for Australian feed ingredients, and exploring the precision feeding of broilers including feed efficiency, gut integrity, digestibility, and gut health.


Following graduation with a Master’s Degree in Agricultural Science in 1974, Alan’s career in poultry has spanned 45 years during which he has served on NZ Poultry Industry Education and Research Committees, has worked in the commercial sector as a Director of a Poultry Cooperative, has operated his own commercial egg business and has had a long-time involvement with the World’s Poultry Science Association. He has been President of his local WPSA branch and served for 16 years as President of the Asia Pacific Federation of WPSA branches. He has a special interest in village poultry and is currently Chairman of the Working Group on Small-Scale Family Poultry Farming.


My research in the last five years has been focussed on improving quality and welfare traits related to reproduction in chickens. I work closely with the breeding industry and use genetics, genomics and physiology and cross disciplinary approaches to understand these traits and develop new selection tools. I have three key priorities; 1) The control of feed intake in broiler parents, 2) Osteoporosis in layers, 3) Egg Quality, and a spin off 4) Novel Antimicrobial peptides from eggs. Additionally, I am generally interested in the control of avian reproduction. The most important results have been in the understanding of the central and peripheral control of food intake and metabolism in birds, the genetic architecture of osteoporosis and getting near implementation of cuticle deposition as a trait in breeding.