Assuming that you are feeding the same food the breeder gave you, then just a little more than you were feeding her at 8 weeks. If he's a bit tubby, don't give too much more. If a bit skinny then increase a little. What are you feeding him? The amount of food will depend on lots of factors, but mainly on the quality of food and the individual puppy.
Thank you he was on Asda puppy hero when we brought him home but I have now brought wainwright’s puppy food gradually adding it to his normal feed
