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deborahbroadus Moderator

Joined: 16 Jul 2006 Posts: 6679 Location: Baltimore, MD
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Posted: Thu Nov 15, 2007 10:25 pm Post subject: |
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Here's another!
Feeder Euthanasia the Easy Way, and Humane too... courtesy of another forum (yes I have permission)
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...and also because the current sticky's link doesn't seem to go to the article that's off-site anymore. I figured I'd post an on-site write up for everyone.
Let's face it...the paintball equipment gas chamber setup is pretty elaborate and possibly expensive. This way uses dry ice in a sealed container and is far simpler. Dry Ice is actually nothing more than the solid form of carbon dioxide, and it becomes CO2 gas through sublimination at room temperature, I think. (maybe Mendel can answer that one)
Disclaimer: Dry Ice is extremely volatile and should only be used by adults or under the supervision of one. You do not need to add water to dry ice to increase the rate of sublimination, doing so can result in explosive boiling of the water. Do not come into direct contact with the dry ice. Use tongs to handle it, and if you need to break it up, make sure it is in a bag so debris doesn't go flying into your eyes. Use common sense.
List of supplies:
- Dry Ice, about 1 lb (depending upon the size of your chamber), readily available at most grocery stores (Kroger in my case)
- a cooler or similar container than can be made air-tight
- A small container, such as a kritter keeper, or something that can be sealed so the rats can't access but gas can flow out)
- Rats!
Step 1 - Get your cooler ready. I put down paper towels to catch anything gross and make cleaning easier.
Step 2 - Put your rats in the cooler. I had 10 medium sized rats.
Step 3 - Break off the right size piece. I had a 5 lb block, and used maybe 1 lb of it. This stuff will freeze your fingers instantly so please use tongs to handle it.
Step 4 - Place it inside some kind of container where the gas can get out but the rats can't get in. This stuff is really cold and I picture a bunch of rats with their tounge frozen to the block (like the kid who licked the ski chair lift, ok nevermind).
Step 5 - Place the container in with the rats, and close the lid.
Step 6 - After about 5 mins, you've got a bunch of clean, humanely euthanized rats, ready for the freezer.
Hope that helps!
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*V|o|D*Blood corps
Joined: 20 Jun 2007 Posts: 90
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Posted: Sat Dec 01, 2007 4:38 am Post subject: |
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I have no clue where to get dry ice where i live...this seems like a very easy to do it yourself project but no grocer in my area has dry ice that i know of
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Buck_99 Moderator

Joined: 03 Nov 2006 Posts: 1307 Location: Midlothian, VA
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Posted: Sat Dec 01, 2007 7:34 pm Post subject: |
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| *V|o|D*Blood corps wrote: | | I have no clue where to get dry ice where i live...this seems like a very easy to do it yourself project but no grocer in my area has dry ice that i know of |
If you haven't already, try calling your grocers. I didn't think any of the grocery stores near me had it either, but it turns out that nearly all of them do. I just had to ask. They keep it stashed in small freezers tucked away in inconspicuous corners of the stores. The place I buy it keeps the freezer in plain view in the last place I expected it: right next to the door.
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ZePythonLover
Joined: 08 Nov 2007 Posts: 95 Location: Houston, TX
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Posted: Thu Dec 06, 2007 12:13 am Post subject: |
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wow.. that's just awesome. Yeah almost all grocery stores carry it! Kroger keeps dry ice right in front
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deborahbroadus Moderator

Joined: 16 Jul 2006 Posts: 6679 Location: Baltimore, MD
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Posted: Thu Dec 06, 2007 9:22 am Post subject: |
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Just a FYI....
Dry ice evaporates really fast, it's best to get no more than you will use in a day. It is uncommon for it to last more than 48 hours (depending on the quantity).
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Herphero
Joined: 07 Nov 2007 Posts: 137
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Posted: Tue Jan 22, 2008 2:33 pm Post subject: |
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How much dry ice do you think is needed for about 15 rat pups (fur coats, eye open, fat bellies)
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Buck_99 Moderator

Joined: 03 Nov 2006 Posts: 1307 Location: Midlothian, VA
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Posted: Tue Jan 22, 2008 2:40 pm Post subject: |
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Just a few chunks. About the size of a taco, maybe a hair more to be certain. It sells by the pound, and comes in big 5 lb. or 10 lb. bags. You won't need that much. I always look for a bag where most of it has already evaporated, so I get charged less.
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Herphero
Joined: 07 Nov 2007 Posts: 137
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Posted: Tue Jan 22, 2008 4:12 pm Post subject: |
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How much does dry ice usually cost you?
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deborahbroadus Moderator

Joined: 16 Jul 2006 Posts: 6679 Location: Baltimore, MD
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Posted: Tue Jul 15, 2008 4:48 pm Post subject: |
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| Herphero wrote: | | How much does dry ice usually cost you? |
Costs me 10.00 for a 15lb bag. Check around in your area.
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RonCrawford Site Admin

Joined: 04 May 2006 Posts: 2008 Location: Pottsville, PA (USA)
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Posted: Tue Jul 15, 2008 5:12 pm Post subject: |
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I can't believe I missed your original post back in 2007!
I've never handled dry ice before. Is it advisable to use a pair of goggles to protect ones eyes?
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TeaTime
Joined: 02 Jun 2008 Posts: 60 Location: Puerto Rico
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Posted: Wed Jul 16, 2008 9:31 am Post subject: |
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Tad of necropostage >_>
Sweet idea! All the CO2 chambers I've found are made really complicated and stuff. So since my local market handles dry-ice, now I can kill rodents without having to pop their spines. 
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deborahbroadus Moderator

Joined: 16 Jul 2006 Posts: 6679 Location: Baltimore, MD
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Posted: Wed Jul 16, 2008 11:19 am Post subject: |
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| RonCrawford wrote: | I can't believe I missed your original post back in 2007!
I've never handled dry ice before. Is it advisable to use a pair of goggles to protect ones eyes? |
I haven't had to use any, but gloves (heavy ones) are definitely advisable.
There are no warnings that I know of for working under normal usage with plenty of ventilation (unless working under pressurized conditions) that would require goggles.
p.s I do add water to mine..but the container that's pictured has plenty of ventilation.
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arlynos
Joined: 10 Mar 2008 Posts: 700 Location: whitney point, ny
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Posted: Wed Jul 16, 2008 3:08 pm Post subject: |
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Interesting concept and never thought to ask my local grocer about dry ice for some reason I dont think mine will, but if I do want to go to frozen thaw and kill my own rodents I will try this thanks Deb.
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