My silkie rooster was attacked by a fox at dusk last night around 8pm. He was just going into the coop when he charged at a fox to protect his hens. The fox snagged him and took off with him in the woods. My partner screamed that a fox took off with the rooster and we let the dogs out and took off after him. We followed the trail of feathers through all the thorns, the dogs blew way ahead of us, scaring the fox enough to where he dropped the rooster on the trail. We approached the roo and he was limp, seemingly dead but we believe it was shock. He opened his eyes and responded to our voices so we picked him up and ran with him back to the house, wrapped him up, cleaned his wounds and dressed them and placed him in a box in a warm, dark room in the house. I immediately administered electrolytes and continued to do so every 30 min until around 2 am. When I woke this morning, he was responsive to the light coming on and to my voice but he really cant hold his head up much. I'm hoping it's just swelling causing him to keep his head low. He will hold his head up and look around when startled so I do not think his neck is severely injured (at least I hope not). He had a pretty severe gash on his back, wide open that I cleaned out... skin was ripped open, showing the tissue. It wasnt bleeding too bad. Also appears to have another bite near his breast but no deep puncture wound there. Lots of feathers missing. No wheezing or trouble breathing although it was rapid last night. He is pooping normal poops and today I gave him a little sugar water and pumpkin baby food because he cant really eat due to not having strength to hold his neck up, but hes willingly taking water and soft food from the syringe. I want to redress the wounds today and double check them. I tried calling vets but no one takes in chickens or knows anything about them in my area. The feed store is closed today and the only antibiotic I have on hand is Penicillin VK 500mg for humans, which is supposedly good for animal bites or skin infections. Could this be crushed and added to water? And if so, does anyone know the dosage? Thanks in advance for any info. I'll try to get pics when I redress the wound today.