You are correct. 4.5cc/100 lb cattle. I was actually using the 0.5cc/10 lb swine. (I stated cattle in error)
I decided to use swine because it was closer to chicken size then a cow. The label also says "At the first signs of pneumonia or pinkeye*, administer a single dose of Liquamycin LA-200...
Thank you, good info. Do you have links to any papers or just a phone call.
The dosage you listed is 4 times higher then the labeled dosage -- but that is listed for cattle. I also think it is used every day for cattle, so that brings it back closer to the same dosage over three days...