Chullin 72 - Kosher Slaughter Makes the Meat Ritually Pure
If one first slaughtered its mother and then severed the foreleg, then the flesh of the fetus is impure because it touched the limb - so says Rabbi Meir. However, the Sages say that flesh is impure with a special light impurity decreed by the Sages, which would only make a difference in the case of sacrifices.
All agree that kosher slaughter makes the meat ritually pure. Why? Logically, one could even argue that should be impure, like non-kosher animals. However, since a kosher animal was fit for food when it was young, its slaughter purifies the meat even if it later became a terefah (sick), whereas non-kosher ones were never fit.
Art: Frans Snyders : The market game
