On 21th February at Agricultural Technology Institute of Castilla y León (ITACyL) a workshop dedicated to the agrotechnology day took place, “Alternative raw materials in Feeds for Aquaculture”. The objective of this workshop was to present the latest research on protein sources alternative to fish meal in fish feeds, the use of ingredients with functional properties in aquaculture feeds; the use of raw materials for organic feed for aquaculture; and the availability of raw materials for its preparation. BDi biotechnology attended to the event to share with others the LIFE YEAST project.