Effects of Fermentation Product of S. cerevisiae XPC™ in Chicken Diets on Resistance against Infectious Bronchitis Virus

How to control secondary colibacillosis after IB, Became more of an issue than the IB itself. I am Badly Suffering due to secondary infection this 4th broiler flock hit by IB. IB is cure but secondary colibacillosis make my bird crazier, specially suffering due to e-coli and bird reduce the feed intake Please advise me how to treat Boiler Bird.
Regards
Aftab Anwar.

Secondary colibacillosis due to primary viral respiratory infection generally sets in about 10 days after primary viral infection and once you see the symptoms at post-mortem, treatment can only be with antibiotic, but recovery may not be 100% as severity in each bird varies. Doing a sensitivity test on culture can better allow the selection of an effective antibiotic. Meanwhile if possible add vit B12 in water to stimulate intake.
Using vaccines to control IB is a better solution for future flocks.