Supplementation of vitamin B2 (ribofavin) in poultry feeding is essential. For economic and environmental reasons, ribofavin is now produced biotechnologically, which, in most industrial production, is based on genetically modifed organisms (GMOs). Due to legislation, organic animals must be fed with GMO-free feeds, which also applies to the production processes of vitamin additives in the feed.

RELACS - Improving inputs for organic farming - Data from breeder hens and chicks are particularly critical for the development of vitamin B2 recommendations for organic poultry.