Hi ScottsMomma-
At 9 weeks old the itching is extremely unlikely to be a food sensitivity. Don’t forget, dogs get itches like we do and it does not mean they are having an allergic reaction.
Raw diets are challenging to do correctly and especially with a puppy who needs optimized vitamins and minerals for proper bone development etc, the risk of a deficient diet outweighs any perceived benefit. Start the puppy off on a very simple food with the least amount of ingredients. Chicken and rice for example. Do not jump all over the place to exotic proteins.
If you want to do raw wait until after the critical growth period and use a commercial product like Natures Variety.
