Tylan is basically for respiratory ailments. I doubt a 10 week old chick has enough worms to cause a problem, but do check for mites. I personally would treat them all with sulmet for a few days. Cocci would be my best guess not knowing all the details.
Any new chickens recently?'
Are you seeing bright green poo?
Any moldy food?
Sorry, I just read that you treated with Sulmet.
Were they vaccinated for Marek's?
Any new chickens recently?'
Are you seeing bright green poo?
Any moldy food?
Sorry, I just read that you treated with Sulmet.
Were they vaccinated for Marek's?
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