Figure 5.

Masses of the regional muscle groups, normalized to body mass and tibiotarsus length cubed. (a) Muscle group mass normalized by total body mass for wild (filled bars, n = 6) and domestic (white bars, n = 6) turkeys. While all muscle groups increase in size with total body mass, the trunk group (driven by pectoralis muscle mass) makes up a larger proportion of the overall body mass in the domestic turkey. (b) Muscle group mass normalized by tibiotarsus length³ for wild and domestic turkeys. All body regions are significantly larger in the domestic turkey with respect to length of the long bones