Turkey Farm - rhinotracheitis virus treadment

I need advise regarding MMS application in poultry farms.

We have small turkey farm.
And we have repetitive problems with rinotracheitis virus.
Since it is winter we have severe infection.

We do multiple disinfections before each batch. Our farms are clean and clear.
We tried antibiotics. But all of these do not solve problem.

At the moment I'm giving my turkeys (about 3500 poults 1-1.5kg each) 180ml (25% certified sodium chlorite solution) + 90g Citric Acid per day (orally through water dosator).

I tried providing them with CDS solution, but it is very time consuming and inprecise also it was ineffective since I can inject only 5% CDS solution to water stream. Also concentration of my CDS solution is unknown.

I know there are commercial chlorination systems for farms, but these are very expensive and they want you to pay them even more by providing their "special" sodium chlorite or other materials.

Thank You for any help