About two/three days ago my neighbor's dog came racing to our house and caught one of my chickens. Neighbor came over and dragged him off and I found the injured chicken an hour later (I'd thought she had crawled into the bushes and died until then, I was looking for a body to bury). She was responsive when I picked her up, screamed like I was killing her, and then was unresponsive when I had her in the bathroom to seal up her wounds. She's got a chunk missing on her underside, above the legs but close to them, and I only know because it fell into my hand when I was putting neosporin(original, not with the pain relief stuff) and petroleum jelly on her. Other than putting goop on I haven't been handling her wounds to avoid stressing her out and hurting her more. She perked up a bit when I moved her outside into a separate coop that's set up for brooding hens. She has food and water that I've checked on, but hasn't eaten the food at least for a few days. I'm not certain on the water, she has spilled it a few times so I assume she's going to it. She's one of my less socialized hens, there was a rooster in the batch that we took a bit to remove and he wouldn't let us near the hens. I've seen someone on here that said they tube fed their hen, what would I feed her and how to do that? Also how long can she go without food before it'll be a big issue since I'm not sure she'll let me hand feed her? She's been pooping regularly and laid two eggs since the attack (I suspect just because she'd already had them ready though). Her poop this morning was green and runny.