If an animal that you are permitted to eat dies by any means other than proper ritual slaughter, one who touches its carcass will be ritually defiled until he immerses himself in a mikveh and then waits until evening, just as in the case of one who touches the carcass of a forbidden animal. In contrast, touching such an animal’s bones, sinews, horns, hooves, or hide does not render a person ritually defiled. If the animal was properly ritually slaughtered, its carcass does not impart ritually defilement, even if the animal is found to have been suffering from a fatal disease or injury.
One who carries a part of the carcass of a permitted animal whose volume is equivalent to the volume that one who eats of the same carcass would have to ingest in order to be culpable for punishment for doing so, i.e., the volume of an egg (approximately 57 ml or 2 oz) or more, must immerse his garments in a mikveh, besides being ritually defiled himself until he immerses himself in a mikveh and waits until evening. Thus, one who carries the carcass of a permitted animal must purify himself exactly as one who carries the carcass of a forbidden animal: he must immerse his garments in a mikveh, and he himself will remain ritually defiled until he immerses himself in a mikveh and then waits until evening.
