Highly unlikely. Mayday were avaliable where they were created, I'm pretty sure
Just do regular starter until they start getting all their feathers in. They need the protien for the tail feathers mainly, so they don't need them for like 6 weeks at least
Will do! That means more meat for the aseel. As for the Malay thing, my very brief research says that the Onagadori were originally crossed with Malay (among other things), granted it's just a quick Google search and a skimming over some articles. My last question (for now) is, do they feather out quicker than most breeds?