I don't know, Im not 100% sure that Doomsday is Kryptonian, in the comics Bertron (The man whom created Doomsday) says that he is a humanoid of sorts perhaps even human emphasis on the Perhaps, so I'm not 100% sure wd can go either way because there is many, many different versions of Doomsday.

Edit: Anywho I'm going to sleep, it's already 10:30 over here and I'm falling asleep.