Can I ask why you'd like to know? A puppy has no need to be fed any milk at all when it comes home after 8 weeks. As a species dogs would have no access to milk after being weaned and so have no nutritional need for it. Puppy food can be soaked in boiled, cooled water (allowing the water to cool for 10 mins after boiling means it won't destroy the nutrients in the kibble) and they will happily drink water. Apart from what they got from mum as tiny babies, or the odd stolen slurp neither of mine have ever had milk of any kind and I don't think they are aware they are missing out!
Cara and Mo, two black mini's and Molly a black & white Heinz 57 all served by Elaine, the cook, poop picker, and chief toy thrower.
I live by the Mini Schnauzer code; when in danger or in doubt, run in circles, scream and shout!