Chicken got bit by some other animal - maybe even our dog, what to do? :(

[marypeepins]

we recently adopted a dog/puppy. he is 8 mos and very excited about the girls in the backyard. he is part lab and i know he has some poodle in him, both bird dogs our old lab LOVED the chickens and never harmed them. so, this is a new situation and not sure what to do? our new dog is fast and has caught a few chickens (we didn't give him this opportunity, he got out accidently) the chickens have played dead and he tossed them around (like he would a sutffed toy) but he has not killed them. LUCKY! and we are VERY careful to not let them in the backyard together...but it has happened...evidently
last noght, our son let the dog out and he chased 2 chickens. we caught one and put her safely back in the coop-no harm. we couldn't find the other one after 2 hours of searching and it got dark. we left the gate open so she could get close to her coop if she came back. she came back this morning. she ran into the coop when i opened the door but i noticed that she has a pretty significant bite on her butt whether it's from our dog or something in the woods last night, we will never know. so upset. she seems fine otherwise, but not sure what to do., i dont want her to suffer or it to get infected.
ideas? for both problems....more importantly/urgent, our injured girl.
and how to acclimate the dog and chickens...

 

[3chickchicks]

To treat the chicken, the wounds need to be rinsed for 5-10 minutes with tap water. Then clean again with diluted betadine (dilute with water until it is about the color of tea). Then apply Blu-Kote to the wound. Do this (betadine and blu-kote) twice a day for 5 days. Then do this about once a day for another 5 days.
If the others peck at her then you must remove her.
When one of mine was bitten, I put her in a dog crate in one of our bathrooms. I gave her clean shredded paper to lay on, water and food then draped a blanket over the crate to keep her in the dark. She was traumatized enough that I had to encourage her to eat by putting yogurt in her mouth. I would let her with the others, supervised by me, for half an hour to an hour once or twice a day. When she seemed to get tired, I would put her back in the crate. That small amount of time with them made them remember her so she didn't need to be integrated back in.

The issue with training the dogs may be complicated. When you let him out, is he excited and ready to chase something? He needs to be calm. I have an italian greyhound (extremely high prey drive) that I managed to train. I don't trust him by himself with the chickens yet. But what I did was went out with him on a leash and martingale collar. Every time he showed interest in the chickens, I corrected him with the leash. One time the chickens got spooked by something and ran. My dog tried to give chase but hit the end of the leash. Since then he's thought about things and we've progressed to letting him off leash with the chickens as long as I'm with him. At first I had a water hose ready and sprayed him a few times when he showed interest. Now I can snap and redirect his attention from the chickens.
Now, when they're out and I let him out, I go out first then call him out. I make sure he is walking, not running out of the door. So far so good.
You have to watch the body language. There's looking at the chickens and then there's looking as in stalking the chickens. It's a more intense stare and needs to be corrected then before he even chases. I can tell on mine because wrinkles show up on top of his head because his ears are just a little farther up. His eyes get wide and dilated, etc. He may lift a foot, ready to run. I correct that interest, which happens before he is chasing, so he learns interest like that is unacceptable. It's a subtle change so you have to pay attention.