step by step guide to making a c02 gas chamber - Page 7

freekygeeky · #61 (**permalink**) 26-08-2009, 04:43 PM

Quote:

Originally Posted by Issa

5 - 10 mins?? Isn't the idea of humane euthanasia a FAST painless death? I know the way I cull is a bit more hands on (Cervical Dislocation or the "Pencil Method") but at least I can say all of mine are dead within 30 secs, start to finish.

or the swing and wack method, done in seconds.

Issa · #62 (**permalink**) 26-08-2009, 05:04 PM

Quote:

Originally Posted by freekygeeky

or the swing and wack method, done in seconds.

Think I may have put too much "oomph" into it when I tried this method, the results were quite messy and it put me off.

ghostcornsnake · #63 (**permalink**) 03-09-2009, 12:38 PM

i wonder if the co2 makes the mice and rats fizzie lol

ChloEllie · #64 (**permalink**) 03-09-2009, 01:02 PM

i personally prefer this method. i like the idea of going to sleep first.

depending on what the cost of feeding my snakes will be over the next month then im definitly going to consider this.

brilliant and simple way of showing how easy it is...and i happen to have a cylinder place not far from me lol

The_Real_Moreliaman · #65 (**permalink**) 03-09-2009, 01:42 PM

Quote:

Originally Posted by alphakenny1

dont mean to wee on your campfire but that blood is added after they die, to give snakey a scent to go for, most dont need it

LMFAO....thats gold !!!...i can just imagine someone there with a lil paint brush

I wish more people would use this method for killing....its so much more humaine than bashing heads or dislocation.

BluesBoo · #66 (**permalink**) 13-09-2009, 02:06 AM

This looks like a great way to do it..... I shall have to learn about rodent keeping as well though!

JRoss · #67 (**permalink**) 15-09-2009, 03:38 PM

You can use a strong acid, perhaps ethanoic acid( vinegar) or something a little stronger with baking soda. When it is mixed together CO2 is released. I suggest using a large water tight bottle of some sort with a rubber tubing running into the 'euthanasia chamber'. The air in the chamber will quickly be filled with CO2 and this would slowly euthanize the rat/mouse. The smaller the chamber the quicker it will take effect and the less baking soda and acid needed. Also, the stronger the acid the quicker it will occur. Im a biochemist but im not sure on the required amounts needed to euthanize a 'pinkie' or 'juvenile' so that would be found out purely by experiment. If i bred snakes it would be of use to me but i only keep relatively small lizards at the moment so buying pinkies is more cost effective for me. There would be an equation that would tell you how many grams of baking soda and how many litres of vinegar to use based on the weight of the rat/mouse but that would have to be worked out by someone that used the system and timed how long it took for the rat/mouse to die. Either way this would be considerably cheaper than buying a CO2 canister and just as effective.

Ssthisto · #68 (**permalink**) 15-09-2009, 04:00 PM

Quote:

Originally Posted by JRoss

There would be an equation that would tell you how many grams of baking soda and how many litres of vinegar to use based on the weight of the rat/mouse but that would have to be worked out by someone that used the system and timed how long it took for the rat/mouse to die.

Problem is you *need* a two-stage process - first, to fill the chamber with approximately 20% CO2 to anaesthetise the rodents so they feel no pain - and second to flood the chamber to 80% CO2 concentration so that you euthanise them.

Mixing baking soda and vinegar to do this does not allow you a reasonable control over the output and the vinegar smell/bubbling sound may distress the rodents.

Grond · #69 (**permalink**) 15-09-2009, 04:13 PM

Quote:

Originally Posted by Ssthisto

Problem is you *need* a two-stage process - first, to fill the chamber with approximately 20% CO2 to anaesthetise the rodents so they feel no pain - and second to flood the chamber to 80% CO2 concentration so that you euthanise them.

Mixing baking soda and vinegar to do this does not allow you a reasonable control over the output and the vinegar smell/bubbling sound may distress the rodents.

Agreed.

If you just pump CO2 into the chamber then you are asphyxiating the mice which is not terribly humane as it causes them massive respiratory distress and panic, compared to the peacful death that results from a slow/two stage process.

LiamRatSnake · #70 (**permalink**) 15-09-2009, 04:27 PM

Can you combine the methods? Make them fall asleep then bash them on the head or use cervical dislocation? I'm assuming they don't wake easily, I know co2 was used as an anaesthetic a long while ago.

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