What if the animal may not have been the true bechor: Bava Metzia 6b
What if the mother produces two males and we cannot discern which was first: Bechorot 9a-b, 17a-b, 18a
What if the mother produces a male and female, and we cannot discern which was first: Bechorot 17a-b
What if two mothers produce their first-born, but the young are two males and a female and we cannot determine whether the males were the first-born of each mother: Bechorot 18b
What if two mothers produce two males, but for one of the mothers it was not the first-born: Bechorot 18b Verbally declaring its sanctification before it is born: Nedarim 13a
How do we know this only applies to male first-born animals: Bechorot 19a-b
Attempting to sanctify a bechor for an offering: Bechorot 15b; Temurah 25a
Status of an animal if its mother had been sanctified for Temple use, and then the mother had become blemished and been redeemed: Temurah 10b, 33b
Declaring a first-born kosher animal to be a burnt offering while it is in utero, as a clever method to prevent it from gaining the status of a regular first-born kosher animal: Temurah 10b, 24b-25a
Counting an animal for the animal tithe if it might be a bechor: Bava Metzia 7a
Use of a bechor for the korban tamid: Pesachim 47b
Incinerating an entity woven of the hair of a bechor: Temurah 34a
Status of a bechor if its mother was to be taken as part of the king's tithe: Pesachim 6a
The shelamim is considered holier than the bechor and maaser beheimah offerings, because of the way it is processed: Zevachim 11b; Rashi Zevachim 2a "Bechor"
Status of a first-born Kosher animal which is more than a year old: Temurah 21b
Divine Punishment for making an arrangement which avoids a first-born animal gaining sanctity: Bechorot 3b
A bechor which is brought from outside Israel: Bava Kama 12b; Temurah 8b, 21a-b
Rights of the Kohen to a bechor: Bava Kama 12b-13a; Temurah 7b-9a
Selling a bechor, before or after it is slaughtered: Bava Kama 12b-13a; Temurah 7b-9a
Not allowing a Kohen to sell an unblemished bechor to a non-Kohen, lest he appear to be doing so in order to receive later such animals from this person, which would be disgraceful, turning it into a business: Temurah 8b
Status of a Bechor when there is no Temple
Conducting the service for a First Born animal in the post-Temple era: Makkot 19a; Temurah 21a
Rights of the Kohen to a First-Born Kosher Animal: Bava Kama 12b-13a; Temurah 7b-9a
Selling a First-Born [Un-]blemished Kosher Animal, before or after it is slaughtered: Bava Kama 12b-13a; Temurah 7b-9a
What to do with a First-Born animal which had its blood sprinkled before the destruction of the Temple, but was not brought on the altar before the Temple was destroyed: Makkot 19a; Temurah 21a-b
Procedure in the Temple
The period of time for which the offering may be consumed: Temurah 21b
Pouring the Blood on the Base of the Altar: Pesachim 64b; Zevachim 37a
Burning of some sections of the animal on the Altar: Pesachim 64b; Zevachim 37a; Keritot 4a
Sprinkling its blood, if it gets mixed in with blood from other offerings: Temurah 5b
Punishment for eating from the meat of the bechor, if one is not a Kohen: Makkot 17a
How we know which parts of an ox, a sheep and a goat bechor are placed on the altar: Bechorot 5b
Lineage of the bechor
A bechor sheep that has features of a goat, or a bechor goat that has features of a sheep: Bechorot 3b, 5b, 6a, 6b-7a, 16b, 17a
A bechor sheep born to a ewe that was born to a ewe that was born to a goat: Bechorot 17a
A bechor sheep born to a ewe that was born to a goat that was born to a ewe: Bechorot 17a
A bechor cow that has features of a donkey: Bechorot 6a
A bechor cow that has features of a horse: Bechorot 6a
An animal which has a pig-like feature: Bechorot 3b
A Blemish
An animal which has eyes of different sizes: Bechorot 3b
Whether an expert may examine a blemish without the kohen who received the animal present: Temurah 8b
People are [not] naturally careful about avoiding making a blemish: Pesachim 11a-b
Allowing blood-letting for a sick animal in a way which will not cause a blemish, because otherwise he will make a blemish: Pesachim 11a-b
Allowing Hearsay Testimony that the Kohen didn't make the blemish himself: Shabbat 145b
Who is credible to testify that the blemish wasn't made by the kohen: Shabbat 145b
Blemishing the first-born animal while it is still in utero: Bechorot 3b; Temurah 24b
Uses of a blemished bechor animal
Does the animal retain its sanctity even after it becomes blemished: Temurah 24a
The right of a kohen to a blemished bechor: Zevachim 37a-b
Skinning the animal as one would for a merchant [Margilin]: Temurah 24a
Whether the offering must be eaten within the walls of Jerusalem: Temurah 21b
Having a non-Kohen take part in consuming a blemished first-born Kosher animal, with a Kohen: Temurah 24a
Ownership of a bechor with a nochri
Status of the animal if a nochri is a joint owner, or if there is an investing/managing partnership with a nochri: Pesachim 6a; Bechorot 2a-3b, 9b, 13a, 16a-17a
A fine for entering a partnership with a nochri on an animal which is pregnant with a Bechor: Bechorot 2a-3a
Status of the animal of the owner is a nochri, but it is raised by a Jew who is [not] responsible for any depreciation: Bava Metzia 70b
Benefit from a bechor owned in partnership with a nochri: Bechorot 9b
The bechor and the laws of Temurah [illegal sanctification of another animal in place of an offering]
Status of the temurah of a bechor: Zevachim 37b; Bechorot 16a; Temurah 5b, 8b, 13b, 21a
Whether one may sell or redeem such a substitute animal for money: Temurah 5a-b, 8a, 21a
What happens to children of an animal which is substituted for a first-born Kosher animal: Temurah 21a-b
What happens if someone blemishes an animal which has been substituted [temurah] for a bechor: Temurah 21a
Whether a thief must pay an extra one-fifth if he first swears falsely that he did not steal an animal which has been substituted for a first-born animal: Temurah 8a-b
Other items
Linking the laws of the animal-tithe and the first-born animal, such that rules for one will apply to the other as well: Bechorot 14b
