This is what I found in the archives posted by Bill S. This is what he said.............
: How long do frozen rodents last in the freezer? Should vitamins or calcium be added.
: Thanks for the help, in advance.
"""Hi Jacey,
Here is a c, c & p of my response to someone else with the same Question:
: I have raised rodents for many years. I owned and operated a Rodent Ranch for about 5 years. I can tell you this:
: 1) I have kept rodents (rats & mice) in the freezer for slighty over a year with no ill effects.
: 2) Make sure they are "wrapped" in ziploc (not name brand, but type) FREEZER bags. Regular refrigerator/sandwhich bags are not the same. The chemical composition is different between freezer bags and "sandwhich" bags. Sandwhich bags allow much greater transfer of air and moisture causing freezer burn. Use Freezer bags!
: 3) Pinkies will freezer burn quickly (3-4months tops) even packaged properly. This includes fuzzies, but to a lesser degree. "Haired" rodents (jumpers, weaned, adult, old breeders) will last quite some time (properly packaged 1 year).
: 4) buying Vaccuum-packed rodents is a waste of money. If You can buy them vaccuum-packed at no extra charge and at a competitive price then go for it. Otherwise its a waste. Vaccuum-packing is only valuable if you are actually going to buy a 2 or more years supply of rodents (who does that?). The money You saved by making that vaccuum-packed quantity purchase is going to be burned up by your freezer, and if your freezer goes on the blink your SOL, vaccuum-packed or not!
: Use Freezer bags and haired rodents at 0ºF should easily last one Year."""""
Hope this Helps!