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CO2 to sedate animals - (May/22/2013 )

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Hallo all,

I was wondering how CO2 works to sedate animals?

I can imagine that the lack of oxygen (or the fact you have more CO2 in your body than needed) can have an influence , but how exactely does this work?

-lyok-

oxygen starvation

-mdfenko-

mdfenko on Thu May 23 11:59:01 2013 said:


oxygen starvation

Ok, but thats pretty straight forward.
But whats the effect then? How come you get sedated? its just because of the lack of oxygen? And how come the animals dont die? Its just because you remove the CO2 fast enough or?

-lyok-

it will kill the animal. one of my neighbors used to use co2 to sacrifice his animals so that there would be no drug induced alterations to the brain.

the animal pants then falls asleep. if you don't take it from the co2 chamber, it will die.

-mdfenko-

No, CO2 cannot be used to sedate animal, is used to euthanize animals and can cause pain and stress before they die. Take a look here http://www.slideshare.net/guest48f481/pain-and-distress-during-co2-euthanasia-357399

-pcrman-

pcrman on Thu May 23 19:10:00 2013 said:


No, CO2 cannot be used to sedate animal, is used to euthanize animals and can cause pain and stress before they die. Take a look here http://www.slideshar...thanasia-357399

for arthropods CO2 works quite well for sedation and is used commonly...but they have a quite different physiology and less complex nervous system...So for some animals it is usable...

-hobglobin-

lyok on Wed May 22 19:12:10 2013 said:


Hallo all,

I was wondering how CO2 works to sedate animals?

I can imagine that the lack of oxygen (or the fact you have more CO2 in your body than needed) can have an influence , but how exactely does this work?


CO2 in inhaled and replaces oxygen in the bloodstream, resulting in loss of consciousness.

Here's my question: are you intending to revive these animals? In which case you need isoflurane....

-Fungus_Dreams-

pcrman on Thu May 23 19:10:00 2013 said:


No, CO2 cannot be used to sedate animal, is used to euthanize animals and can cause pain and stress before they die. Take a look here http://www.slideshar...thanasia-357399

Yes and know: I did read some papers where they stated that CO2 sedation for pigs (castration) is a pretty good option...


hobglobin on Thu May 23 19:13:20 2013 said:


for arthropods CO2 works quite well for sedation and is used commonly...but they have a quite different physiology and less complex nervous system...So for some animals it is usable...

Can you give some more details about this? How come its better/ok for insects (or arthropods in general).


Fungus_Dreams on Fri May 24 02:37:45 2013 said:



CO2 in inhaled and replaces oxygen in the bloodstream, resulting in loss of consciousness.

Here's my question: are you intending to revive these animals? In which case you need isoflurane....


Eum, we used it on arthropods, but also on mice.. and I didnt really use isoflurane to revive the mice.. But to be honest: we only "sedated" them a bit to handle them a bit easier...

-lyok-

lyok on Fri May 24 09:42:11 2013 said:



Eum, we used it on arthropods, but also on mice.. and I didnt really use isoflurane to revive the mice.. But to be honest: we only "sedated" them a bit to handle them a bit easier...


You have ethics approval to use CO2 as a sedative for mice, to aid with handling them?

-leelee-

leelee on Fri May 24 17:02:39 2013 said:


lyok on Fri May 24 09:42:11 2013 said:


Eum, we used it on arthropods, but also on mice.. and I didnt really use isoflurane to revive the mice.. But to be honest: we only "sedated" them a bit to handle them a bit easier...


You have ethics approval to use CO2 as a sedative for mice, to aid with handling them?

Well for the arthropods: I am 100% sure its CO2
But for the mice: I am not sure (I dont really work with them, I did it once and I just assumed they used CO2 too.)

-lyok-
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