Aging is supposed to be more graceful, and it's awesome to watch a dog pulverize bone.
Did I mention that my pair of Great Danes (actually crossed with MastiffXPit Bull) are now 16 years old? The male was 160 pounds at 10 years old but we now keep him down about 130 as his muscle atrophies in old age. I had to take him to a vet to get flea crap and the vet was blown away, having never seen a large breed at that age and so healthy. In case you are wondering what this has to do with the thread > this diet and the acquisition of a non-spayed Jack Russell is essential to having the correct type of horny poo. It is best if you can collect the horny poo and place it in a steer's horn and say American Native chants over it for a year prior to use. This makes it 'double horny poo' and you can just use a pinch mixed into 1000 gallons of water (pool water of course) stirred counter clockwise to supply your nutrients.