This is my first time to raise baby chicks and on the 3rd day home I think I may be looking at a dying chick. I had to be away from the house this evening so my daughter called me and was crying because one of the chicks was being attacked by another. It was breathing but very listless in her hand. When I got home I discovered that it had pasty butt so I cleaned it up best I could and tried to get it to drink. It tilted its head back as if to swallow then drooped again. I have it separated from the other chicks but it is breathing really fast and lays there lethargic. Is there any hope for my poor chick? Advice? Have I done all I can do?