I need to treat 2 young showgirls, 1 marans Pullet and 1 buff orpington pullet with antibiotic. They have CRD. Am always out of luck getting some Tylan. A good friend from Mexico send me this antibiotic. It contains tilosin 200mg/1ml. I need the conversion as to how much to dose each chicken. I will inject them rather than doing orally. Instruction says 1ML per 20kg of poultry weight. I would say my bigger pullets weight around 5-7lbs each and my showgirls I would say around 1-3lbs each. That's the trickiest part my math is not good. I would say .10 cc?? For 3 days. Please Help