The number of years a dog can live is related to breed, gender, size, breeding conditions, exercise, disease, etc. In general, mutts live longer than purebred dogs, males live longer than females, and small dogs live longer than large dogs. Large dogs have a short life span, averaging 9-12 years; small dogs have a long life span, averaging 12-15 years, and some individual dogs have a life span of 20 years, with the longest life span recorded at 34 years. 2-5 years is the prime of the dog’s life, and after 7 years it starts to age, losing its reproductive capacity in about 10 years. The lifespan of dogs is closely related to the conditions of feeding and management, dogs kept indoors live longer than those outdoors, and dogs with moderate exercise live longer. Many diseases are the main factors that lead to shortened life span of dogs, especially viral infectious diseases have a greater impact on the life span of dogs. Dog life expectancy calculation method: the age of the dog compared to the human life expectancy calculation method, in the dog one year after birth is equivalent to 17 years old, two years after birth is 23 years old, three years after birth is equivalent to 28 years old. After this, each year after the increase of 4 years to convert. So 10 years of dogs converted to human age is 55 years, recently because of improved nutrition, the life expectancy of dogs has also been extended, there are some dogs will live up to 20 years. Dogs often have different life expectancy because of different dog breeds, and different results. The difference between dogs and people is that the time after old age is very short, and before the six months of death, dogs can still live a very healthy life.
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