Raw (and canned) food appear to have a lower protein value but when converted to dry matter (moisture removed) the protein level goes WAY up.
However, I did consider Raw for a short time and I know there are others who feed Raw with MVD dogs, I chose not to because the risk of bacteria did concern me since liver compromised dogs can be pre disposed to a suppressed immune system.
If you are comfortable you could try it and see how your baby does on it, but I would stick with the chicken formula.