So my favorite chicken was free ranging with her 2 sisters today in the front yard. Well my dad happen to hear her screaming and a coyote hade bit into her butt. Ripped 2 good chunks out of her i have cleaned and sprayed the wound with that blue stuff i forgot the name of it. Well i have penicillin and clean needles i was wondering if i should start her on that for about 4-6 days for precaution so no infection hopefully sets in? If so my syringe is messure in ml how much should i give her and how do i safely administer it to her?