One thing I will say about the suggested feeding amounts on the back of dog food bags is they are not accurate for all dogs. I always tell people to feed what the dog needs, and to do that you have to check their body condition. You should be able to feel the ribs but not feel each vertabrae easily, and if the hip bones are strongly prominent, the dog is too skinny. If there is a fat layer over the ribs and it's hard to feel them, the dog is too fat.
Something else to consider is with a dog that will get this big, you want to keep her lean as she grows. Feeding an overly rich food and letting her get fat can be hard on her joints too. There is a happy medium, keeping a growing puppy lean and fit, not to fat or too thin, and that will help her grow as soundly as possible.
There are many foods out there that are better quality than Purina One. I like the Eagle Pack line of dry food and I also feed raw food (meat/bones/organs.)
Answered by paws4hisglory - 11/15/2011 1:49:42 PM