Diagnosis of fake hens

It is not easy to distinguish fake hens from laying hens in clinic, and the following can be used as a basis for diagnosis:

The first layer had infectious bronchitis in the chicken stage, especially before the age of 2 weeks, and the hens with lower laying rate after entering the laying period could be suspected to have fake hens.

Second, rectal touch examination was carried out before laying eggs in the morning. Three fingers of the pubic bone were opened but the chickens with no eggs were found to be fake hens.