Holy rats ?

Hey has anyone come across this i went to get some feeder pinky rats out of the freezer and notice some holes appearing in there skin. Wish i could get a pic but not coming out very well. But was wondering if anybody know what could be causing it thansk ...

Holes as in wounds? If so it's those are injuries caused by mothers fighting over the babies.

Hardly noticeable when frozen more obvious when thawed.

If you are talking about something else than a pic will be needed.

Actually i think it maybe frost bite but unsure ....See what i can do about a pic ...

It's freezer burn. Safe to still feed. It's just dehydration. :)