First, you need to know that while your puppy is growing is not a good time to experiment with whether or not you got the diet balanced right, so I always suggest commercial raw meals or using a premix to which you just add the correct amount of boneless meat.
I don’t think there is really and argument about whether or not veggies are necessary. It is known that they are NOT necessary, but that isn’t the same thing as beneficial. Some dogs have constipation issues on a raw diet and veggies add fiber to help with regularity. Veggies also offer different antioxidants that may help if your meat source is not as pure as you could wish. Veggie have micronutrients in them that may be missing from over grazed soil and so missing from meat animals. Adding veggies make up for some of what would be missing if you don’t feed tripe.
Bone, meat, and organs are supposed to be specific amounts of the diet, and you can do that feeding organs a few times a week, but organs are rich and in some dogs cause stomach upset if too much is given at one time.
