There is no specific number. I think it would depend on what you feed. If I could feed only one protein source it would definately be deer. Feeding nothing but chicken would be much better than feeding kibble but not the ideal. Would he be missing any nutrients if you fed nothing but chicken? I don't know what they would be. I do know there is no specific number of protein sources that I have ever seen named.If you had to give a number that represented the amount of different proteins in a month that you try to reach in your dogs diet what would it be? Basically, what is the appropriate amount of variety in a dogs diet?
i know the staples will be chicken, turkey, beef, fish, lamb, pork and eggs.I feed as many protein sources as I can lay my hands on. When you start to raw feed your dogs it becomes a hobby to explore all the options you have to getting meat that you would never have thought of before. Even if you can only feed a few of the mainstream proteins on a regular basis doesn't mean you can't add some more of the expensive or exotic meats in once a month. If you're not a member of a co-op I highly suggest that you do. We get all kinds of cool stuff for our kids from them and can also be a good resource for information.