Yes, it says so on the directions. However, both a friend of mine and I have used the 5% at 6ml per gallon of water and confirmed by fecal exam both before and after that the cocci was eliminated.
I guess this is the one I should have bought. https://www.growsolutions.com.au/en/products/products-details.php?id=679&fbclid=IwAR2BNSaq-L-z0WeP5m80ywn4h7-BbvBb_CUkcS_DujwDuNEAldTkcDxnj0M
There is nothing wrong with feeding chicken starter, it is the only choice my feed mill offers. It is a 23% protein and has amprolium, we have used it for years.
Well, if you read it on the internet it MUST be true, right?
My vet recommends giving a round of treatment proactively every two weeks but certainly not every day. I have moved on to Toltrazuril as it is safer than Sulfadimetoxine and more effective than corrid.