F. Frank LeFever
flefever at ix.netcom.com
Wed Oct 21 20:17:48 EST 1998
In <70kje7$ln0$2 at due.unit.no> Sturla Molden <stumol at stud.ntnu.no>
>F. Frank LeFever <flefever at ix.netcom.com> wrote:
>: Dislocation of neck AFTER perfusion? a bit redundant? ("overkill"?)
>: When the returning fluid begins to run clear, isn't it pretty much
>: over? If not, wouldn't the first jolt of formalin do it?
>It is indeed "overkill". Here in Norway researchers are
>required to ensure death of a cadaver after it has been
>killed the fist time. This is because there have been
>some unfortunate incidences were rats that have been
>"euthanised" have "woken up from the dead" just before
>they were to be destructed in a crematorium. :(
>Hence, the rats are first killed by an overdose and then
>decapitated or dislocated in the spinal cord.
IF you rely only on a big dose of anesthetic, yes, a rare one might
wake up; but surely not after you have REPLACED ALL OF ITS BLOOD WITH
NORMAL SALINE, the excess of which is pouring out of a hole in the
right atrium! When THIS is followed with an infusion of formalin, can
there be any doubt the rat is dead? (albeit the naive might
misinterpret the muscle twitches when the formalin hits).
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