Table 5.

Fatty acid groups, sums (Ʃ), ratios, and nutritional quality of lipid fraction (mg/kg of meat) of the Longissimus lumborum muscle of feedlot lambs fed diets with whole corn germ (WCG).

Item 1	Inclusion Level of WCG (g/kg DM)					SEM	p-Value 2
	0	30	60	90	120		L	Q
SFA	13,552	12,352	14,454	12,204	12,926	1114	0.70	0.90
MUFA	14,714	12,835	14,277	11,365	13,014	1592	0.36	0.66
PUFA	1824	1768	2263	1982	1933	92.04	0.17	0.04
BCFA	146	107	158	132	120	16.52	0.63	0.74
MUFA:SFA	1.1	1.0	0.9	0.9	1.0	0.05	0.15	0.27
PUFA:SFA	0.13	0.15	0.16	0.17	0.15	0.01	0.31	0.27
DFA	21,637	19,256	22,694	18,300	19,987	1847	0.49	0.96
Neutral	5165	4713	6202	5018	5106	375	0.88	0.28
Total	32,576	29,229	33,464	27,733	30,206	2800	0.51	0.87
Ʃ-6	385	378	472	413	398	30.40	0.55	0.17
Ʃ-3	158	131	169	138	112	17.17	0.15	0.32
omega-6:omega-3	2.5	3.1	2.9	3.1	3.6	0.30	0.03	0.90
Atherogenicity index	0.6	0.6	0.5	0.6	0.6	0.02	0.54	0.19
Thrombogenicity index	1.6	1.7	1.7	1.8	1.7	0.07	0.15	0.40
Hypocholesterolemic (h)	14,738	12,950	14,620	11,752	13,073	1454	0.35	0.76
Hypercholesterolemic (H)	8319	8238	8101	7009	7736	977	0.43	0.85
h:H index	1.9	1.8	1.9	1.8	1.8	0.05	0.26	0.63
Δ9-desaturase C16	7.8	7.1	7.0	7.1	7.0	0.37	0.14	0.42
Δ9-desaturase C18	71.3	70.0	66.8	67.0	68.6	2.07	0.24	0.26
Elongase	70.6	70.1	71.6	70.7	70.0	0.74	0.77	0.28

¹ SFA, saturated fatty acid; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid; DFA, desirable fatty acids; Ʃ-6, sum of omega-6 fatty acids; Ʃ-3, sum of omega-3 fatty acids; h:H, hypocholesterolemic to hypercholesterolemic FA ratio (h:H) index; ² L = linear; Q = quadratic; significant at p < 0.05.