Diet composition of steers grazing adjacent monocultures of tall fescue and alfalfa using different combinations of n-alkanes (ALK) and long chain fatty alcohols (LCOH) as markers. Angular transformed standard error of the mean = 3.3. †Nontransformed percentage units. ‡Four ALK plus three LCOH (ALK: C27, C29, C31, and C33 and LCOH: C26, C28, and C30), two ALK plus three LCOH (ALK: C29 and C31 and LCOH: C26, C28, and C30), four ALK (C27, C29, C31, and C33), and two ALK (C29 and C31). Within forage type, means followed by the same letter are not different at P < 0.05.