One of my young chickens managed to escape the chicken yard and my dog got a hold of her. He tore her neck and exposed her crop. I brought her inside and tried to keep the crop covered and cleaned, but she kept picking at it and managed to rip it open. I tried so hard to keep her from bothering it, but last night she picked it completely off!! I have done plenty of research and am positive I know the answer, but is there any way to save her? If not, what is the best/quickest way to put her down? I have had chickens for 5 years now and have never had to put one down on my own. I feel bad for her since she is so young still. Any advice will be greatly appreciated.