Fig. 4

Various plant phenolic compounds, particularly those related to benzoate metabolism, were higher in pasture-finished (Bi_pasture) vs. pen-finished bison (Bi_pen). Homostachydrine and stachydrine, two compounds known to be rich in alfalfa, were higher in pen-finished samples. Dark green colors indicate compounds were higher in pasture-finished bison, while red colors indicate compounds were higher in pen-finished bison. Yellow numbers indicate a significant difference (P < 0.05)