A bird flu outbreak at a laying hen farm in Wielkopolska has led to the decision to cull nearly 1.4 million hens, resulting in a loss of one million eggs per day to the market. The National Federation of Poultry Breeders and Egg Producers expects it will take at least 20 weeks to restore the lost production. The incident is causing disruptions in the egg supply chain, with large retail chains setting purchase prices. The federation is calling for a reasonable approach to egg pricing from these retail chains to stabilize the market.