
Hi Bouncya,
how much food is a little like "how long is a piece of string" ;) All dogs, even littermates, are quite individual in their requirments as their metabolism will be different as will their lifestyles.
IMO the best measure of whether the correct diet in amount and content is being fed or not is more to do with the "feel" and "look" of a dog - even pups. You should be able to see his waist and
just feel his last ribs. If he's too well "covered" in these departments, i.e. no visible waist and can't find a rib to save yourself LOL) then he's having too much. If his ribs are too noticeable or pin bones (hip bones found at the end of his back before it slopes down to the root of his tail) then he needs a little more added to his daily ration.
His over all condition should be bright eyes, shiny coat, springy skin, good solid regular poos, and of course his demeanour upbeat and active as would be expected for a puppy.
HTH a little - it's so easy to be over anxious (and experience doesn't necessarily make that go away ;) )
regards Teri