Vitamin B2 supplementation for laying and parent hens in organic poultry systems (RELACS Practice abstract)

This practice abstract provides recommendations for organic poultry systems to meet the Vitamin B2 needs of the animals. Data from project experiments indicate that hens in or- ganic systems can be supplemented with a maximum level of 4.0 mg/kg feed without impacting the performance and animal health of the hens and their offspring. This level of supplementation is lower than the 5-7mg/kg feed recom- mended by Blum et al. (2015). This tool is recommended for organic poultry farmers across Europe.