What are the prevention and control measures for prolapse of the cloaca in caged laying hens?

For growing pullets, restricted feeding should be implemented to maintain good body condition and prevent excessive fatness, thereby reducing the incidence of dystocia-related prolapse. Lighting should be appropriate and stable. During the peak laying period, the diet formula should be prepared according to the flock's laying level to avoid causing reduced egg production, feather loss, and prolapse in laying hens.

Provide a quiet living environment for laying. Various external stress factors should be reduced and eliminated. For chickens with feather-pecking vice, they should be raised separately or culled. Once a chicken with prolapse is found, it should be isolated immediately. For chickens with mild symptoms, the prolapsed part can be washed clean with a 1% potassium permanganate solution, then coated with gentian violet, sprinkled with anti-inflammatory powder or oxytetracycline powder, and pushed back into place by hand with kneading.