"Intended" for Cattle, and sheep, swine, and horses, but we use it sometimes in poultry.
You will find different dosages, but in Plumb's veterinary handbook, and in clinical avian medicine, the chicken dose is 100mg/kg IM once a day or every two days. Since Pen G is in IU not mg, you have to...
I agree, with azygous. You'd be surprised how fast bacteria can multiply and infect a surface. Most bacteria I do cultures, and sensitivities on, have covered the whole plate in as little as twelve hours. Of course, there are a ton of other factors at play, but it gives you an idea.
My first...