Most vets are recommending complete dried food. It is really detrimental to add any supplement to dry food. This will create an imbalance in the completed balanced food. Most behavioral problems stem from incorrect feeding. Red meat or any high protein can cause aggressiveness or nervousness.
High protein can increase the scale of aggression, moods, and jumpiness.
I am afraid that I am unable to confirm that it is good to give your dog bones. Your vet will also confirm that this will cause teeth to be broken, and if your pet swallows a lump of bone, he may have to have an operation. I would suggest a Kong stuffed with treats, a platted twisted rope, stuffed in between with liver treats or a few pieces of dried food to make it interesting. Neither, it is better to feed either one hour before a walk or one hour after a walk. I prefer to feed one hour after a walk, now he has something to come home to.