Neion Bio is advancing an avian bioreactor concept designed to manufacture proteins using genetically engineered chickens that produce target proteins in eggs. The company positions the approach as a way to reduce dependence on CHO-based, facility-heavy manufacturing by replacing major components of bioprocessing with an “egg-laying” production system. While early-stage, the model targets a core bottleneck for biologics supply and cost, especially as next-generation modalities demand faster and more scalable protein production.