Table 4.

Selected fatty acids (FA) of heart and liver from piglets fed one of three arachidonic acid (ARA)-rich oils¹

Diet	Control	a1	a2	P
Heart	FA (% total FA)
Σ SFA2	31.92 ± 0.29	32.15 ± 0.49	32.37 ± 0.39	NS
Σ MUFA	18.53 ± 0.75	18.35 ± 0.77	18.09 ± 0.74	NS
ARA	20.67 ± 0.56	19.93 ± 0.79	20.57 ± 0.93	NS
22:4n-6	0.92 ± 0.10	0.86 ± 0.09	0.83 ± 0.13	NS
22:5n-6	tr.	tr.	tr.	n/a
Σ n-6	43.40 ± 0.86	43.44 ± 1.12	43.59 ± 1.00	NS
20:5n-3	0.42 ± 0.04	0.39 ± 0.03	0.39 ± 0.04	NS
22:5n-3	0.76 ± 0.08	0.71 ± 0.04	0.73 ± 0.05	NS
DHA	4.16 ± 0.39	4.04 ± 0.28	3.98 ± 0.35	NS
Σ n-3	6.05 ± 0.40	5.95 ± 0.31	5.85 ± 0.40	NS
ARA/DHA	5.00 ± 0.38	4.96 ± 0.40	5.22 ± 0.63	NS
Σ 22C LCPUFA3	5.84 ± 0.37	5.61 ± 0.34	5.53 ± 0.37	NS
Liver
Σ SFA	42.15 ± 0.91	42.46 ± 0.57	41.89 ± 0.74	NS
Σ MUFA	13.64 ± 1.17	13.50 ± 0.71	13.89 ± 1.24	NS
ARA	17.66 ± 0.49a	17.33 ± 0.78b	17.38 ± 0.57ab	0.01
22:4n-6	0.64 ± 0.07	0.63 ± 0.10	0.65 ± 0.08	NS
22:5n-6	0.06 ± 0.01	0.06 ± 0.01	0.05 ± 0.02	NS
Σ n-6	34.10 ± 0.69	33.49 ± 0.59	34.17 ± 0.55	NS
20:5n-3	0.33 ± 0.04	0.28 ± 0.08	0.31 ± 0.05	NS
22:5n-3	1.03 ± 0.18	1.04 ± 0.13	1.04 ± 0.06	NS
DHA	7.70 ± 0.47b	8.23 ± 0.38a	7.62 ± 0.62b	0.046
Σ n-3	9.80 ± 0.47	10.21 ± 0.43	9.70 ± 0.56	NS
ARA/DHA	2.30 ± 0.12	2.11 ± 0.12	2.29 ± 0.15	NS
Σ 22C LCPUFA	9.43 ± 0.52	9.96 ± 0.33	9.37 ± 0.68	NS

¹Values represent means ± SD, n = 8 per diet. P < 0.05 indicates that all means are not equal; NS, not significant. Pairwise comparisons determined using Student’s t-test; means not sharing a common superscript are significantly different (P < 0.05).

²DHA, docosahexaenoic acid; LCPUFA, long chain polyunsaturated FA; MUFA, monounsaturated FA; tr, trace; SFA, saturated FA.

³Σ n-6 = Σ 18:2n-6, 18:3n-6, 20:2n-6, 20:3n-6, ARA, 22:4n-6, 22:5n-6; Σ n-3 = 18:3n-3, 20:3n-3; 20:5n-3, 22:5n-3, DHA; Σ 22C LCPUFA = Σ 22:4n-6, 22:5n-6, 22:5n-3, DHA.