Reference for Shabbat 271:9

וכ"ת טרפה מבטן מאי איכא למימר התם יש במינה שחיטה הכא אין במינה שחיטה

does not render it clean.<span class="x" onmousemove="('comment',' For even if ritually slaughtered, it may not be eaten, since it was non-viable (v. p. 679, n. 5; the same applies to animals), and therefore it is the same as though it had died of itself. ');"><sup>9</sup></span>