Xiaobai, Zaizai, Diudiu, and Lulu. Young chickens can be called Xiaobai, Zaizai, Diudiu, Lulu, Doudou, preserved egg, Maomao, etc. Young chickens refer to hens between 7 and 20 weeks old. Immature chickens raised after being removed from the temperature until they reach sexual maturity. Growth and development are relatively rapid and are the main stages of bone growth and development.