You know those scary-looking electric stun bolts that PETA misrepresents as cruel? Those are anesthetics. Anesthetics need not be chemical! Look it up in a resource about animal husbandry, not a PETA pamphlet.
Oh I hate peta too, their ads suck. And I wouldn't take my info from a animal husbandry organization either, conflict of interest.
Given the choice between being killed while conscious, versus being zapped into instant unconsciousness and then killed, I am guessing that you would probably prefer to be zapped.
Ofcourse! But I'd rather not be killed at all.