Individual fatty-acid apparent digestibility coefficients in the (A) jejunum, and (B) ileum for the four different dietary free-fatty-acid percentages (5%, 15%, 35%, and 50%) in 37-day-old broiler chickens. Values are means ± SE of 12 replicates per each dietary FFA percentage (with 3 chickens/replicate). Palmitic (C16:0), stearic (C18:0), oleic (C18:1n9), and linoleic (C18:2n6) acids. Abbreviation: FFA, free fatty acids.