Bacteria that make chickens sick can come from many sources. Bringing in new flock members, wearing shoes to another poultry farm and then into your coop,
Chicken waterers, how often should you clean them?
How often should you clean chicken waterers? If your chickens water container has a slimy film in the bottom or on the inside, then you're not cleaning it enough. The coating inside a poultry waterer is called biofilm and it contains lots of bacteria that can make your chickens sick.
Giving Chickens Bacteria ... To Keep Them Antibiotic-Free