Generally, these pooches live between 8 and 10 years. This is not an impressive lifespan if we take into consideration that some large hybrids live up to 12 or 13 years. Still, this is not a surprise as its Bullmastiff and Rottie parents live up to 9 years. In order to keep your dog healthy, you need to take into consideration its daily exercise needs and its feeding chart as well. Both of the Bull Mastweiler’s parents need a well-organized feeding chart as they have a tendency to gain weight. This especially related to Rotties, which is why the Rottie’s feeding chart needs careful consideration!