Best Diet for aging stud dog?

and how much exercise?

The best diet would have to be some form of raw diet without any question. As for exercise, I would do whatever it is the dog enjoys doing. I try to allow my studs to exercise some on the mills or maybe the springpole or maybe both depending on how they feel after one or the other. Any form of exercise for older dogs is nothing but beneficial for their health.

Agreed.

I personally do exactly as the above, though I admit I have been slacking in the exercise department. I really like the springpole alot (and so do my dogs), but have been using the flirtpole mostly, when I do exercise them.