As much as it takes to keep the pup at the correct weight.
I know 2 people that have littermate brothers. One feeds 3/4 cup 3 times a day. The other feeds 1 1/2 cups 2 times a day. The pups just turned 3 months old. It also REALLY depends on WHAT you feed. With some kibble, you have to feed twice as much to get the same result as another brand.
I know 2 people that have littermate brothers. One feeds 3/4 cup 3 times a day. The other feeds 1 1/2 cups 2 times a day. The pups just turned 3 months old. It also REALLY depends on WHAT you feed. With some kibble, you have to feed twice as much to get the same result as another brand.