@rufasim I would def increase amount at least up to 3/4 cups 3 times a day. Up until a month ago I fed my pup 1 cup 3 times a day. We now give him 1 1/2 cups twice a day, still getting 3 cups a day. We've had him on this amount since we bought him home at 8 wks of age. He is now 8 months old and according to our vet he is at a good weight.
Hope this helps!