If an animal is dangerously ill, one may not slaughter [it], unless there is [enough] time — during the day — to eat an olive-sized [piece of its meat] roasted. Rabbi Akiva says: Even an olive-sized [piece of] raw [meat] from the place of the incision. If he slaughtered it in the field, he may not bring it [from the field to his house] on a pole or on a litter, but he may bring it in his hand, limb by limb.

If a firstborn fell into a pit, R’ Yehudah says: An expert may go down and look [at the blemish]. If [the expert finds that] it has a blemish, he may bring it up and slaughter [it]. But if not, he may not slaughter [it]. R’ Shimon says: In any case where the blemish was not detected before Yom Tov, it is not considered to be prepared.

If an animal died, one may not move it from its place. There was an incident and they asked R’ Tarfon about this matter and about challah which had contracted tumah-contamination. He entered the house of study and asked. They said to him, ‘‘He may not move them from their place.’’

We may not be counted initially for [the meat of] an animal on Yom Tov, but we may be counted for it[s meat] prior to Yom Tov, and slaughter and apportion [it] among ourselves. R’ Yehudah says: A person may weigh meat against a utensil or against a chopper. But the Sages say: We may not use a scale at all.