Wounded hens - all I have is Bio-mycin 200

[HighSpringsChix]

I have two hens with severe wounds under their wings. (It's amazing what happens when you leave for 2 days

)
I have cleaned the wounds, and applied antibiotic ointment. There was a lot of dirt in the wounds, so I think I should give them an antibiotic.
The only one I have on hand is Bio-mycin 200. What would be the dosage and how should I give it? I would assume injecting it into the breast or thigh muscle if it can't be given orally.
The feed stores are closed for the weekend, so I can't get anything else.

Any advice will be appreciated. They are 2 of my Delaware breeding hens.

Thanks.

 

[jenjscott]

Oxytetracycline dosage for adult chickens is 100 milligrams per day not to exceed 4 days. Info states not to use in chickens laying eggs for human consumption, so that is up for consideration.

Edited to add: in liquamycin injectable form, it is given subcutaneous to chickens.

 

[HighSpringsChix]

Thanks for the info!