Frozen rodents have spoiled?

Does anyone know how to tell if frozen rodents have gone bad? The freezer that I had all my rodents in stopped working sometime within the last week, and although the rodents stayed at refrigeration temperature, I don't know how long they were dethawed for. So how do I know if they've gone bad?

After 24 hours I will throw mine out. Not sure if you have to but with a smell like that, I wouldn't want to keep them any longer. Smell is a good determination on whether they are good or not. A fresh thawed rat will still have a smell but as the body begins decomposing the smell will get stronger and more gross. And rodents decompose quickly.