Hi bob D-
Congratulations on your new puppies! It sounds like they are most likely going to be large breed puppies. There are specific calcium guidelines that you want to make sure to follow to ensure that their joints grow properly to help eliminate any issues down the road. Especially hip dysplasia and torn ligaments in the knees and elbows.
You may be surprised, but Purina or Royal Canin would be your best bet while they are growing puppies. Both companies have done extensive research and feeding trials. Make sure you pick a formula that specifically states it is for large breed puppies in the AAFCO statement.
Here is a helpful link with more information: https://skeptvet.com/Blog/2010/01/nutrition-in-large-breed-puppies/
Good luck and have fun!
