Crazy Idea for a Calmer Death

So, this may be a crazy idea.  No wait, it *is* a crazy idea. 

Say you raised up some meaties, and culling time approached.  That night, you put them in a special room that had low wattage red lights in it (supposedly calming for chickens).  Perhaps you've had them sleep in there for a few nights here and there so the room is not new and strange to them.  For dinner, they had some food with kava kava added, a natural herb sedative that is both muscle relaxer and sleep aid.  It has been shown to work in chickens.  http://www.ncbi.nlm.nih.gov/pubmed/12672148  Once the chickens are sleeping in their dark little room, you go around and cut their heads off cleanly.  The muscle relaxant properties may make the meat more tender (artificial muscle relaxers used to be used:   http://www.independent.co.uk/life-style/food-and-drink/are-you-a-soft-touch-for-tender-meat-butchers-are-falling-for-the-tenderiser-but-consumers-shouldnt-1465360.html ).  The process may be less...disturbing to those who are not at ease with the killing process, and may be more calm for the chickens.  Heat seems to detroy all the active constituents of kava at 140 degrees, so a normally cooked chicken (160-ish degrees) should be well safe from any lingering side effects of the kava, such as drowsiness.  Perhaps not so with chickens meant to raw feed dogs.  Has anyone tried a process similar to this?  Was the process any easier for you than traditional methods?  Did it seem easier on the chickens?  Do you see any possible health issues with this process?  Would you be concerned about eating meat killed in this way?

Thanks.

Should have specified.  Specialty room with a drain.  Hose that sucker down. 

http://www.shamansgarden.com/p-208-capsules-kavalactone-84.aspx There are different forms and percentages available, some stronger than others.  Ie. extracts, oils, powders, injectables, etc.  But no, it is a sedative, not an anesthetic.  I did not mean to imply otherwise.

Placing calm or sedated chickens into killing cones are looking really attractive to me, galanie.  The flapping (even with the head cut off) seems to be the most disturbing part for people, even when their brains know the chickens are already dead.  I know it really gets my stomach churning jut watching videos.  XP

That's what I'm really worried about with any sedation technique for meat animals.  The lingering kava.  Will the cooking process get rid of chances of side effects?  Or would long term eating of kava-laced chickens be an issue?  The only serious side effect I know of is liver damage, but how often that happens and why seems unclear still.

Bigred, from what I understand, some like a speedier tenderizing process, which is why the machines in the link were made.  For me personally, letting them sit sounds good enough for me!

Silkie, aye, the herb would be a one-dose thing for the chicken, so no long-term use issues to worry about as far as the chickens go.  Wondering if heating means that the kava has any health effects to worry about in humans, or if everthing, good and and bad, is destroyed through heating?