it certainly cant hurt to make sure he grows at a slow steady pace, no matter what breed he is. the foods labeled large breed puppy will accomplish that, but as MRL stated, many adult foods will accomplish the same thing as long as the maximum Ca isnt too high (such as it is in most grainless foods). the main things id stay away from for our pups are most of the grainless foods and foods just labeled "puppy."
Kimba (gsd) 5/9/07
Saby the mutt~1/15/01
Frisco (gsd) 6/21/02
RIP-canines-Buddy, Roxy, Kujo, Kato, Pierre
felines-Chanel, Panther, TJ