During DuPont’s recent Phytase 101 workshop in Prague, Dr Peter Plumstead, associate professor, Monogastric Nutrition at the University of Pretoria demonstrated how improved performance and profitability can be achieved through a greater understanding of the action of different types and doses of phytase on phytate at different stages of digestion. World Poultry editor Fabian Brockötter spoke to him about his presentation.