Humane culling of embryos before incubation and one-day-old chicks in the first days of incubation is the most important unsolved problem in the production of poultry products. A number of European countries have laws prohibiting the destruction of one-day-old male chicks and are developing restrictions to limit the destruction of live embryos in avian eggs after 6 days of incubation.... https://www.ealisboa.com/