Outbreaks of bacterial coldwater disease (BCWD) caused by Flavobacterium psychrophilum have resulted in significant losses of salmonids produced in hatcheries. Ovarian fluid contaminated with F. psychrophilum is a potential source of infection from parent to offspring, and previous work using iodine and Chloramine-T to disinfect unfertilized eggs have shown promise in lab settings. However comparatively few studies have been conducted at a production scale. Over several hatchery spawning events UDWR has been evaluating the effectiveness of iodine and Chloramine-T both at reducing rates of BCWD infection, and the feasibility of integrating new disinfection procedures into existing hatchery protocol. Current results indicate Chloramine-T to be well suited for hatchery scale production, showing no negative effects on sperm motility, eye-up rates, or labor time.