Hullin 86: Taking Responsibility for Shechitah

A new mishnah! If a deaf-mute, someone with cognitive impairment, or a minor slaughtered an animal with supervision, then the slaughtering is kosher shechitah - and there's an obligation to cover the blood, if the animal were a non-domesticated animal or a bird. But not if there was no supervisor there. Likewise, when it comes to slaughtering an animal and its offspring on the same day. Also, Rabbi Yehudah HaNasi on covering the blood, and how far the requirement for taking care of this goes -- how did they figure out the halakhah? And another new mishnah! Slaughtering 100 animals in 1 place requires only 1 act of covering the blood.