Significant differences in amino acid and acylcarnitine reference values in blood samples of free-ranging <i>U</i>. <i>americanus</i> Pallas.

Comparative analysis between different ages of bears. The column on the left gives the abbreviations of the metabolites analyzed; comparisons between cub (1–2 years), juvenile (3–4 years) and adult (8 years) bears are shown. A significant difference was indicated by p <0.05.