The Cane Corso is considered a large breed dog because it will grow to 80lbs or larger. You should be feeding a food that is appropriate for a large breed puppy. They need to grow slow so they don’t develop bone problems. I would suggest you go to the Diet and Heath Issues forum and read through the Large and Giant Breed Puppy Nutrition thread for more info. See here: /forums/topic/large-and-giant-breed-puppy-nutrition/
A member, Hound Dog Mom, took a lot of time and effort to create a list of appropriate foods for large breed puppy growth. I would look through the list and see what is available to you. You may want to choose a food that is very different to what you are currently feeding (different protein, different carbs, etc).
Here is the list: https://docs.google.com/file/d/0BwApI_dhlbnFTXhUdi1KazFzSUk/edit?pli=1
It starts with grain-inclusive foods, then grain-free foods, and raw foods last.
I have a Great Dane (aka German Mastiff). He has done well on Annamaet, Earthborn Holistic, The Honest Kitchen (a dehydrated food, not kibble), Primal (raw), and Stella & Chewy’s (raw). You can’t go wrong if you pick anything from the list I provided. I would get small bags to see if he likes it first. You can also buy food online at places like chewy.com or petflow.com if you can’t find what you want locally.
I hope this is helpful Good luck!
