Table 5.

Fatty acid profile of the LM of beef heifers fed 10% barley straw (BS) or 19% alfalfa hay (AH)

	Diet
Item	BS	AH	SEM	P- value
Gram per 100 g total fatty acids
C14:0	2.29	2.57	0.151	0.199
C14:1	0.43	0.54	0.061	0.284
C15:0	0.44	0.39	0.030	0.355
C16:0	23.83	25.50	0.551	0.124
C16:1	2.92	3.16	0.145	0.283
C17:0	1.92	1.45	0.353	0.100
C17:1	1.04	0.89	0.066	0.210
C18:0	16.78	16.58	0.543	0.797
C18:1 trans-9	0.94	0.94	0.015	0.951
C18:1 trans-11	2.50	2.06	0.307	0.333
C18:1 n-9	38.04	36.89	0.689	0.257
C18:1 n-7	2.28	2.07	0.055	0.016
C18:2 n-6	4.54	4.75	0.269	0.638
C18:3 n-6	0.12	0.12	0.029	0.814
C18:3 n-3	0.23	0.28	0.017	0.090
C20:0	0.24	0.25	0.015	0.678
CLA cis-9 trans-11	0.22	0.23	0.022	0.920
C20:3 n-6	0.41	0.43	0.036	0.641
C20:4 n-6	1.09	1.03	0.111	0.724
C22:2	0.26	0.11	0.092	0.280
SFA1	44.54	46.12	0.777	0.170
MUFA2	44.71	45.55	0.728	0.275
PUFA3	6.53	6.59	0.386	0.908
PUFA:SFA	0.15	0.14	0.009	0.755
n-6:n-3	27.93	24.63	2.260	0.314

¹SFA = ∑ C14:0, C15:0, C16:0, C17:00, C18:0, C20:0.

²MUFA = ∑ C14:1, C16:1, C17:1, C18:1 trans-9, C18:1 trans-11, C18:1 n-9, C18:1 n-7.

³PUFA = ∑ CLA cis-9 trans-11, C22:2; n-6 = C18:2 n-6, C18:3 n-6, C20:3 n-6, C20:4 n-6; n-3 = C18:3 n-3.