Male chicks in egg-laying breeds are killed at hatching since they cannot lay eggs; in-ovo sexing technology offers a welfare-positive alternative.
Male chicks of laying breeds are killed within hours of hatching because they cannot produce eggs and are not meat breeds. Gassing with CO2 causes distress before unconsciousness. Maceration is rapid but raises public welfare concerns. In-ovo sexing technology can identify the sex of chick embryos before hatching occurs, eliminating the need for culling.