In the production of layer hens, male chicks are killed directly after hatching. A number of potential alternatives for this killing have been preliminary assessed as to public acceptation and feasibility. These alternatives are:
- the screening of male eggs by looking at the freshly laid egg,
- influencing the sex by changing the environment for the chicken
- the screening of male eggs using genetic modification. The aim of this project is to obtain the biological knowledge necessary for proof of principle and future development of such alternatives, and to assess cost and animal welfare issues. The focus in this AIO project is on alternatives number one and two.