The fatty acid composition of the corn-based feed and the alfalfa-based pasture is shown in Table 5.Linoleic acid (C18:2n-6) and linolenic acid (C18:3n-3)were the major fatty acids in the corn-based feed and the alfalfa-based pasture, respectively. The predominant fatty acids in corn-based feed or alfalfa-based pasture were palmitic acid (C16:0) as SFA and oleic acid
(C18:1n-9) as MUFA. The corn-based feed contained greater percentages of oleic acid and linoleic
acid and lower percentages of myristic acid (C14:0; P < 0.01) and linolenic acid (P < 0.01) than the alfalfa-based pasture. Compared with the cornbased feed, the alfalfa-based pasture contained greater percentages of total PUFA and n-3 PUFA and lower percentages of total MUFA and n-6 PUFA .