Allometric relationships between the length of pregnancy and body parameters in mammals Available to Purchase

In this manuscript we investigated the presence of allometric relationships between the length of pregnancy and the body parameters in mammals. The relationships between the length of pregnancy T (d) and the square of body length H² (m²), body surface S (m²), body mass to surface ratio M/S (kg/m²) and body-mass index (BMI) (M/H²) were investigated in mammals: Metatheria and Placentalia, including animals with body mass ranging from 8g in Common shrew to 15t in Killer whale. In result, the found power equations are: T = 114.3 (H²)^0.352; T= 120.4 S^0.38; T = 9.147 (M/S)^0.757 and T = 17.6 BMI^0.605. The study showed that the M/S ratio and BMI are nearly equivalent characteristics in relation to length of pregnancy.