A system and method for delivering a water supply to a poultry flock includes a water supply line including at least one perforation； a nipple drinker connected with the water supply line at each perforation； a water flow delivered from the nipple drinker； and a pathogen inhibiting material associated with at least one wetted component of at least one of the water supply line and the nipple drinker, whereby delivery of water through the system reduces flock exposure to water borne pathogens.
