Increased capacity for circulatory fatty acid transport in a highly aerobic mammal

Plasma fatty acid (FA) and albumin concentrations, cardiac output, and hematocrit of dogs and goats [dog-to-goat ratio of maximal oxygen consumption (VO2max) = 2.2] were measured to determine rates of circulatory FA delivery during exercise. Our goals were 1) to characterize the mechanism(s) used by the endurance-adapted species (dog) to support higher rates of FA delivery to working muscles than the sedentary species (goat) and 2) to determine …