Table 10. Effect of energy feeding levels on fatty acid of longissimus lumborum muscle in Holstein steers

Item	22 month		24 month		SEM	p-value1)
Fatty acid (%)	T12)	T2	T3	T4
C14:0	3.42	3.32	3.23	3.11	0.14	0.1534
C14:1	0.81	1.11	0.93	0.97	0.13	0.5112
C15:0	0.31	0.3	0.29	0.27	0.02	0.8123
C15:1	0.07	0.08	0.08	0.08	0.01	0.8452
C16:0	27.01	26.11	27.34	26.81	1.12	0.2125
C16:1	4.99	5.23	4.98	4.6	0.28	0.3879
C17:0	0.74	0.87	0.79	0.78	0.05	0.4321
C17:1	0.07	0.08	0.08	0.07	0.01	0.8491
C18:0	12.92	11.87	11.1	9.41	0.89	0.0842
C18:1	47.71	49.14	47.67	50.02	1.52	0.1854
C18:2	2.17b	2.88ab	2.23b	3.27a	0.22	0.0977
C18:3	0.06	0.07	0.07	0.07	0.01	0.2717
C20:0	0.18	0.15	0.14	0.15	0.02	0.7813
C20:3	0.15	0.14	0.12	0.13	0.02	0.5218
C20:4	0.2	0.21	0.21	0.22	0.05	0.2987
SFA	44.58	42.62	42.89	40.53	2.14	0.1432
MUFA	53.65	55.64	53.74	55.74	1.21	0.5157
UFA	56.23	58.94	56.37	59.43	1.87	0.1021

Probability of the F test.
Each group were set to 70% (T1) and 72% (T2) during fattening phase and 74% (T3) and 76% (T4) for the finishing phase, respectively.
Means in the same row with different superscripts are significantly (p < 0.05) different.
SFA, saturated fatty acid; MUFA, monounsaturated fatty acid; UFA, unsaturated fatty acid.