Pen-G dosage?

[jaxmarblebuns]

We are going to be treating for what we believe to be vent disease. I believe I found a reputable source on how much Pen-G to give them but just wanted to double check on here. If you can give the amount as ml/lb that would be best, but if not its ok.
source Procaine Penicillin G for Animal Use (Canada) - Drugs.com