A poultry fold is usually moved from one place to another after some time.Give a reason for this

The main reason for moving a poultry flock from one place to another is to prevent the buildup of waste and disease in the current location. By moving the flock to a new environment, the birds are able to have access to fresh pasture and clean bedding, which helps to prevent health issues and improve overall flock productivity. Additionally, rotating the flock to different areas can also help to prevent overgrazing and maintain the health of the land.