Chullin 74 - Calf of a Slaughtered Cow
If the nine-month fetus was alive, then it is an independent animal and requires shechitah; additionally, it cannot be killed today, on the same day as its mother - these are the words of Rabbi Meir, but the Sages disagree. For animals other than cows the law is the same, only the gestation term is adjusted accordingly.
A firstborn donkey cannot be used by its owner, until he redeems it with a lamb or a young goat, which he gives to a priest. Can the calf of a slaughtered cow be used for this redemption? Is it considered an independent animal, and then it could be used for redemption, or since it does not need a shechitah, is it considered like meat in a pot, and then it can't be used for redemption?
Art: Pieter Aertsen - The Cook
