Carmspack can give you advice on raw for puppies, supplements when feeding raw, etc.
I hope she will comment.
I think asking is best, because blindly giving calcium, especially in the form of a supplement can actually cause issues in the joints.
Usually calcium/phosphorous ratio will be proper if you are feeding a proper MM/OR/RMB amounts. If you are feeding bones, you do not need to supplement calcium -- dried ground egg shells. But that may depend on whether you are feeding enough RMB with respect to MM and OR. I do not feed raw, so someone else needs to address this -- I am just recounting what I have read in various places.
Good luck. PM Carmspack, this is right down her alley.
Heidi Ho, Odie
Joy-Joy, Bear Cub, Hepsi-Pepsi
Cujo2, Karma Chameleon
Ramona the Pest, Kojak -- who loves you baby?
Tiny Tinnie, Susie's Uzzi, Kaiah -- The Baby Monster.