Larger breeds age faster than smaller dogs so a Doberman would be considered a senior dog at the age of 6 or 7, while a Pug would be considered an older dog at the age of 10-11.
The most common problems that older dogs experience are bone degeneration of some sort, such as arthritis, and kidney problems. Some dogs will develop other conditions, including heart disease and liver disease.
Senior dogs need to have regular vet visits where the pet’s body condition will be assessed to determine whether its weight is at a proper level. Obesity is another issue senior dogs face, while others start to lose weight as a result of dental issues and inability to chew their food.
Older dogs require different diets than younger dogs so make sure you accommodate your pooch’s nutritional needs accordingly. Take good care of its mouth and try to get the dog as much exercise as possible at its age.