I think this question has been raised a few times, but I haven't been able to get a satisfactory answer so i want to ask...
I've got a few captured mounts from goblin sieges. Now, I hate goblins and I absolutely want to rip them apart with their own war animals, even as I'm devising a trap of fire breathing creatures to roast them to ashes.
For some reason, an enemy giant war mongoose and badger gave birth in their cages, and I was apparently able to tame the pups in one go. No problems there. No hostilities, I got about 40 giant badgers and counting. Heck, I even managed to get a group of Tigermen going. Don't ask how, I don't know either.
Now, I'm pretty sure I heard animals can't be impregnated while in cages, but I'll chalk it up to good luck that they were impregnated before hand. Either way I'm not complaining.
But this time I want to try to get captured mounts to breed. I got some giant dingos and porcupines and I really want to create an apocalypse based on multiple furious giant animals.
So the question is...how do I get to that? Chaining them would be the obvious answer, but as far as I know, taming enemy mounts do not remove their hostilities, and I don't know if the same applies to their young. Do they continue to be hostile? Will they be ripped to shreds by their own mother? How can I force a working breeding program?