I doubt the ice caused the dog to bloat, as there were so many other factors going on. That said, I rarely feed ice to my dogs. Of all the Dobermans we've had, they all throw up almost immediately after drinking cold water or eating an ice cube, so since getting them I barely give my dogs ice. I used to all the time as treats, and those dogs were fine, but now I'm a bit more cautious. I wouldn't give a dog ice to cool them off though.