I'm considering breeding and freezing my own mice?

[Navy]

How exactly do you kill them? I don't think I could break their necks or anything, and just shoving them in the freezer seems way too cruel.
I know this sounds stupid, but I've never done with before.

[Pythongloves]

The most humane way to kill a mouse is to make a Co2 chamber. they cost less then $50 to make all you need is a rubber made box, a paintball Co2 tank with a remote connecting them. If you go by youtube they have tons of videos on how to make them. Good luck!

[Dwish]

I used to briefly work in a lab at a medical school, when I was an undergraduate. The most humane way is definitely a CO2 chamber (sounds kinda...genocidal, but you can do this to groups at a time). Years prior, they would break necks...but this was later deemed to be a less humane technique and was consequently banned. The CO2 technique is actually very quick.

[wolfy-hound]

CO2 is definitely the best way. Done right, they just go to sleep then die peacefully.

[Sita]

CO2 is the most humane way to euthanize them and have them safe for consumption. All you need is a plastic box, a CO2 canister from a paintball gun, and an adapter. Oh, and a way to make 2 holes in the box.

You are correct about putting them in the freezer as cruel. It is a long and painful death to be frozen.

[Bellabob]

Like everyone else has said, CO2 is the way to go. You don't have to have a fancy set up either (they can be very expensive). I use dry ice and water. I have a small cooler that I put the mice/rats in, and a container with dry ice inside with wire mesh on top so the rodents don't walk in it. Pour water on the ice, close the lid, and wait.

[doganddisc]

I use cervical dislocation when I kill my mice. The moment of panic they experience with C02 seems downright cruel to me. I have never had an issue with CD though. Always died instantly and since my mice are so used to being handled anyway, they had no idea what was coming. It's a matter of personal preference in some cases though and you absolutely NEED to know how to perform CD correctly in order for it to work.