These mishnayot discuss the identifying signs and practical criteria for permitted species, including defects that affect kashrut status. They serve as an early halakhic framework for how kosher status is assessed.
אֵלּוּ טְרֵפוֹת בַּבְּהֵמָה. נְקוּבַת הַוֶּשֶׁט, וּפְסוּקַת הַגַּרְגֶּרֶת, נִקַּב קְרוּם שֶׁל מֹחַ, נִקַּב הַלֵּב לְבֵית חֲלָלוֹ, נִשְׁבְּרָה הַשִּׁדְרָה וְנִפְסַק הַחוּט שֶׁלָּהּ, נִטַּל הַכָּבֵד וְלֹא נִשְׁתַּיֵּר הֵימֶנּוּ כְלוּם, הָרֵאָה שֶׁנִּקְּבָה, אוֹ שֶׁחָסְרָה, רַבִּי שִׁמְעוֹן אוֹמֵר, עַד שֶׁתִּנָּקֵב לְבֵית הַסִּמְפּוֹנוֹת. נִקְּבָה הַקֵּבָה, נִקְּבָה הַמָּרָה, נִקְּבוּ הַדַּקִּין, הַכֶּרֶס הַפְּנִימִית שֶׁנִּקְּבָה, אוֹ שֶׁנִּקְרַע רֹב הַחִיצוֹנָה, רַבִּי יְהוּדָה אוֹמֵר, הַגְּדוֹלָה טֶפַח, וְהַקְּטַנָּה בְּרֻבָּהּ. הַמְסֵס וּבֵית הַכּוֹסוֹת שֶׁנִּקְּבוּ לַחוּץ, נָפְלָה מִן הַגַּג, נִשְׁתַּבְּרוּ רֹב צַלְעוֹתֶיהָ, וּדְרוּסַת הַזְּאֵב. רַבִּי יְהוּדָה אוֹמֵר, דְּרוּסַת הַזְּאֵב בַּדַּקָּה, וּדְרוּסַת אֲרִי בַּגַּסָּה, דְּרוּסַת הַנֵּץ בָּעוֹף הַדַּק, וּדְרוּסַת הַגַּס בָּעוֹף הַגָּס. זֶה הַכְּלָל, כֹּל שֶׁאֵין כָּמוֹהָ חַיָּה, טְרֵפָה: וְאֵלּוּ כְשֵׁרוֹת בַּבְּהֵמָה. נִקְּבָה הַגַּרְגֶּרֶת אוֹ שֶׁנִּסְדְּקָה. עַד כַּמָּה תֶּחְסַר. רַבָּן שִׁמְעוֹן בֶּן גַּמְלִיאֵל אוֹמֵר, עַד כָּאִסָּר הָאִיטַלְקִי. נִפְחֲתָה הַגֻּלְגֹּלֶת וְלֹא נִקַּב קְרוּם שֶׁל מֹחַ, נִקַּב הַלֵּב וְלֹא לְבֵית חֲלָלוֹ, נִשְׁבְּרָה הַשִּׁדְרָה וְלֹא נִפְסַק הַחוּט שֶׁלָּהּ, נִטְּלָה הַכָּבֵד וְנִשְׁתַּיֵּר הֵימֶנָּה כַזָּיִת, הַמְסֵס וּבֵית הַכּוֹסוֹת שֶׁנִּקְּבוּ זֶה לְתוֹךְ זֶה, נִטַּל הַטְּחוֹל, נִטְּלוּ הַכְּלָיוֹת, נִטַּל לְחִי הַתַּחְתּוֹן, נִטַּל הָאֵם שֶׁלָּהּ, וַחֲרוּתָה בִידֵי שָׁמָיִם. הַגְּלוּדָה, רַבִּי מֵאִיר מַכְשִׁיר, וַחֲכָמִים פּוֹסְלִין:
These wounds constitute tereifot in an animal, rendering them prohibited for consumption: A perforated gullet, where the perforation goes through the wall of the gullet, or a cut windpipe. If the membrane of the brain was perforated, or if the heart was perforated to its chamber; if the spinal column was broken and its cord was cut; if the liver was removed and nothing remained of it, any of these render the animal a tereifa. Additionally, a lung that was perforated or that was missing a piece renders the animal a tereifa. Rabbi Shimon says: It is not a tereifa unless it is perforated through to the bronchi. If the abomasum was perforated, or the gallbladder was perforated, or the small intestines were perforated, it is a tereifa. It is also a tereifa in a case where the internal rumen was perforated or where the majority of the external rumen was torn. Rabbi Yehuda says: For a large animal, a tear of one handbreadth renders it a tereifa, while for a small animal, it is a tereifa only if the majority of it was torn. And it is a tereifa where the omasum [hemses] or the reticulum was perforated to the outside, i.e., to the abdominal cavity, but not if the perforation was between the two. Likewise, if an animal fell from the roof, or if the majority of its ribs were fractured, or if it was clawed by a wolf, it is a tereifa. Rabbi Yehuda says: If it was clawed by a wolf in the case of a small animal, i.e., a sheep or goat; or clawed by a lion in the case of a large animal, i.e., cattle; or if it was clawed by a hawk in the case of a small bird; or if it was clawed by a large bird of prey in the case of a large bird, then it is a tereifa. This is the principle: Any animal that was injured such that an animal in a similar condition could not live for an extended period is a tereifa, the consumption of which is forbidden by Torah law. And these, despite their condition, are kosher in an animal: If its windpipe was perforated or cracked lengthwise. How much can the windpipe be missing and still be kosher? Rabban Shimon ben Gamliel says: Until the perforation is the same size as the Italian issar. If the skull was fractured but the membrane of the brain was not perforated, it is kosher. If the heart was perforated and the perforation did not reach its chamber, or if the spinal column was broken but its cord was not cut, or if the liver was removed and an olive-bulk of it remained, it is kosher. Additionally, it is kosher if the omasum or the reticulum was perforated one into the other. If the spleen was removed, or the kidneys were removed, or if its lower jaw was removed, or if its womb was removed, or if its lung shriveled by the hand of Heaven, the animal is kosher. In the case of an animal whose hide was removed, Rabbi Meir deems it kosher, and the Rabbis deem it a tereifa and unfit for consumption.