I recently took a chicken to vet(big $ for me,big $ to call to ask this ?) I am getting ready to deworm my flock and was given ivermectin injectable(was told can be used orally, I know how to do that) my ? IS, and I saw dosages before but don't know where i saw if before,(ramble ramble) how do I apply the safeguard and at what dosage for chickens?? oral/topical????? this is a big shot vet(IMO) as he treats the exotics,etc at the columbus zoo(OHIO)and I trust him just don't want to take forever with a call/? to him.