thanks everyone for all the feedback
i read that yorkie puppies can be separated from the mom+litter mates btwn 8-12 weeks. ill check with the breeder and see if the puppy is indeed ready to be separated.
yes, def nutra cal! i've heard nothing but good reviews on it.
i understand that i should just keep the puppy on its current food the breeder is feeding. thing is, the breeder is currently using Black Gold Puppy Food and i read some not so great reviews on it. i think i'll eventually wean the puppy off of that (gradually, of course) and switch to a better food brand.