Before you learn Bekhorot 41

Where we left off

The previous daf analyzed leg blemishes, distinguishing between limb defects and fatal injuries. No sugya continues onto this daf.

Which physical defects permit slaughtering a firstborn outside the Temple? How does gender ambiguity disqualify or sanctify an animal?

אַנְדְּרוֹגִינוֹס (hermaphrodite): This animal possesses both male and female reproductive organs. The Sages debate whether it is treated as a male, female, or distinct creature.
טוּמְטוּם (animal with concealed genitalia): A טוּמְטוּם is an animal whose reproductive organs are covered by skin. Its gender remains an unresolved doubt between male and female.
גָּרָב וַחֲזָזִית (skin eruptions): These are types of boils mentioned in the Torah as altar blemishes. Whether they permit local slaughter depends on whether they are dry and permanent.

Abaye (אַבַּיֵי, Amora): He argues that a bodily crack constitutes a blemish only on bone, not on flesh.
Rava (רָבָא, Amora): He investigates whether Rabbi Yishmael views an אַנְדְּרוֹגִינוֹס (hermaphrodite) as a definite firstborn or a doubt.
Rav Chisda (רַב חִסְדָּא, Amora): He rules that all agree a טוּמְטוּם (concealed genitalia) is sanctified out of סָפֵק (doubt).
Rabbi Yishmael (רַבִּי יִשְׁמָעֵאל, Tanna): He maintains that an אַנְדְּרוֹגִינוֹס (hermaphrodite) has a major blemish and may be slaughtered.