Talking Talmud

To close the 3rd chapter: What if wool were plucked from an unblemished burnt-offering? What would the halakhah be regarding benefiting from that detached wool? The sacrifice might be postponed because of this question, and that can really complicate matters. And the new chapter begins -- with a new mishnah, and some basic questions about when the first-born is given the the kohen. "Small" animals should be given with a 30-day limit (or 3 months, depending on whom you ask) - sheep and goats. "Large" animals - that's cattle - have a 50-day limit.

If you're slaughtering the first-born, you can part the hair and even pluck a hair for the sake of smoother slaughtering. That is, plucking is not considered to be shearing. This might complicate matters for a red heifer -- if one trimmed red hair that had some black, which is allowed, in this case, without actually shearing. So that task is also unintended beyond its actually purpose. Note that cows are not considered "shorn," because their hairs are not wool. Plus, a historical account of 9 red heifers. Also, a new mishnah! A blemished first-born, who has shed hair, and then the animal is slaughtered (or it dies), can that hair be used in the way the body would be allowed for use after the slaughtering? It's a machloket.

One who purchases a nursing female animal from a non-Jew - and the question is whether that animal can conclusively be said to have born progeny before, or perhaps the animal was nursing another animal's offspring, without having borne any herself. Also, what if the first-born has a blemish? What about the slaughtering of the first-born? How one finds the best place for the slaughtering - moving/parting/plucking hair without shearing it. Maybe plucking IS the same as shearing... but it's allowed because the goal is dramatically different (moving the hair or fur aside vs. shearing it).

Coming in the middle of a long discussion with a focus on a mix of sacred and regular ashes -- where impurity would be nullified via the mixture. Also, a new mishnah! If one purchases an animal from a non-Jew, and it is nursing, we don't worry that the nursing animal had a different mother. Which leads into a discussion about the opinions represented in the mishnah here, in terms of anonymity.

NOTE: This daf talks about animal miscarriage and extends the conversation to human miscarriage. Please be forewarned.
A new mishnah! With various status questions regarding the first-born. Even when the mother has conceived and had a miscarriage before carrying the animal that becomes her first-born to term. Also, if you buy fish brine from someone who is not reliable with issues of purity and impurity, then you have to purify the fish brine. Which is a different process of purification than that of a vessel, for example, because it's liquid to begin with.