I did find one that I had arranged to order in some turkey starter. I drove there today, a mere hour ride to find was he got in turkey pellets. Can these be ground up and used?
Yes. Ground fine. What is the percent of it though ? You'll need to be about 28(ish) percent protein.
You can bump that up with Soy.....but have never heard anything good about Soy.
Even if you had a Turkey crumble, you would have to grind it for a week or more.
Any water soluble vitamin mix will only be good.