Originally posted by 76561199241361747:

If you use portals, keep your breeders remote. Don't add more than 2 base items, portal +1. This should avoid all raids but "being hunted" that is focused on you and should not be an issue with farm animals. Or don't kill Bonemass and prospect silver with an AOE sledge.

You know that tamed animals dont breed if you are not in a 64m area near from them , right ?
Or you say to make a couple of animals for a backup ?