Research Paper Volume 8, Issue 12 pp 3209—3222

Birth mass is the key to understanding the negative correlation between lifespan and body size in dogs


Figure 2. Calculated cellular damage increases as a function of age in two dog breeds. (physiological parameters in Eq. 1 required to produce this figure: B0 = 3158 Joules/(day.gram0.69) [7,8], Em = 5000 Joules/gram, and ε = 0.999) [34,40,53]. The solid and dashed arrows indicate the ages at which ~ 90% of the adult masses are reached in two dog breeds. These ages were estimated from the growth equation, E m dm/dt=Brest-Bmaint and the birth and adult masses of both dog breeds.