Growing GSD things not to feed?

i have a 5 and a half month gsd, from mainly police linesand a few show lines in there! anyway her parents were hip and elbow scored before i got her etc and she seems to be growing well, she's being spayed today. i'm just worried that im not giving her the right food. right now she ona high quality aussie brand of food called supercoat puppy. she also gets brisket bones and chiken neck and chicken mince, mixed with her kibble. she goes for weekly runs on the beach and a ten minute walk daily, an dplays with the other dogs teh rest of the time on our 20 acres. she is up to date and is C5 vaccinated. does that sound ok for good growth ?