If I understand correctly, the classical Halachic requirements on kosher slaughter only discuss cutting the trachea and esophagus. Is that enough to kill the animal quickly (and painlessly?) What about the blood vessels? Are those usually cut too? Must they be?
1 Answer
It is discussed at length in Siman 20 of Yore De'ah. Essentially the shochet needs to cut through the Trachea, Esophagus, carotid artery and the jugular vein. Both of these shield the esophagus and trachea at the place where the cut is to take place. This would lead to a fairly quick bleed out with the animal becoming nonsensical in a matter of seconds. Siman 24 discusses what happens if the cut wasn't deep enough. Thus only slicing the major blood vessels but not the breathing apparatus.
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1So in order to get to the trachea and esophagus, he'd always have to go through the carotid and jugular?– ShalomCommented Aug 11, 2010 at 14:59
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1As a note this is the oft cited debated about where one can shecht a giraffe. Giraffe is kosher, but the place of where the shchita needs to take place is under some debate on account of strange anatomy of such a long neck. Personally I think anything that can crush a lion's skull with a single kick ought to be left well enough alone, but to each his own. Commented Aug 12, 2010 at 5:08