Talmud for Chullin 6:2
הַשּׁוֹחֵט וְנִמְצָא טְרֵפָה, וְהַשּׁוֹחֵט לַעֲבוֹדָה זָרָה, וְהַשּׁוֹחֵט חֻלִּין בִּפְנִים, וְקָדָשִׁים בַּחוּץ, חַיָּה וָעוֹף הַנִּסְקָלִים, רַבִּי מֵאִיר מְחַיֵּב, וַחֲכָמִים פּוֹטְרִין. הַשׁוֹחֵט וְנִתְנַבְּלָה בְיָדוֹ, הַנּוֹחֵר, וְהַמְעַקֵּר, פָּטוּר מִלְּכַסּוֹת:
When an animal was slaughtered and found to be Terefá, or if it was slaughtered for idolatrous purposes, or as חולין within, or as consecrated offerings without the temple-court; or a bird or wild animal condemned to lapidation, R. Meir considers it obligatory [to cover the blood], but the sages hold, "It is not obligatory to do so." When it became Nebelah by being slaughtered, or when it was killed by a knife being thrust up its nostrils, or that the trachea and œsophagus were forcibly torn off, it is not obligatory to cover the blood.
Jerusalem Talmud Sotah
The Babli, Zebaḥim 70b, argues that the dead calf must be pure since “purification is written there as for sacrifices” (Note 110).?