Yukkuri can ususally adapt, so if he feeds it little in the first few weeks he has it, it shouldn't require enormous amounts to keep it sustained. Like the way the human body will slow the metabolic process when starved, and will burn calories faster when provided with more.
^ They'll whine and demand food. Even with a gold badge it'll complain. I suppose this owner can handle that period. But whine every single meal time, which could be once a day, to five times a day, and in between too.
I think it's impossible to grow a DOS since very few yukkuris grow that big and you can't tell which ones will. You've heard on the news about those animals that are much larger than average but they're rarities. Most animals grow and die at normal size.
But we still don't know if this is the artist's interpretation of a normal adult yukkuri or not. Most of use think that average yukkuris are about the size of basketballs- this one is around that size.
Assuming he's trying to raise a dosuyukkuri, he'd need to give it lots of food to get it big enough. And even if he then cut down on the food he gave it to the minimum needed to sustain it, because it would be that big, that would still be a lot of food a day. Or many gallons of orange juice.
i always assumed a yukkuri grew to fit its food supply. Lots of food == big yukkuri. Not much food == small yukkuri. I imagine there would be all sorts of problems reducing in size though, possibly the process is even simply a one way deal - yukkuri can get bigger but not smaller again.
I think trying to make one smaller would make it not fit its form as well, but the amount of surface would be roughly the same. If a human gets fat they can get stretch marks, and then if they become thinner their skin becomes looser, because the outer layer is expecting to hold more than is contained.
That could explain the grandma yukkuri in that one pic a while ago, the inside reduced with age, but the outer skin didn't - thus wrinkled old yukkuri.
Yukkuri Management CenterAh, it's here.Yupi?Reimu, get down. yupi- Delivery!