Brain fatty acid and transcriptome profiles of pig fed diets with different levels of soybean oil

BMC Genomics

Table 1 Total lipid content and FA profile in brain tissue of pigs fed diets containing different levels of soybean oil

Fatty acid, %	Dietary treatment¹		Pooled SEM²	p-value
Fatty acid, %	SOY1.5	SOY3.0	Pooled SEM²	p-value
Total lipids	9.928	10.292	0.113	0.199
Saturated fatty acid (SFA)
Myristic acid (C14:0)	0.522	0.521	0.006	0.927
Palmitic acid (C16:0)	26.848	27.037	0.189	0.709
Stearic acid (C18:0)	29.131	28.371	0.208	0.110
Monounsaturated fatty acid (MUFA)
Palmitoleic acid (C16:1)	0.494	0.462	0.015	0.387
Oleic acid (C18:1 n-9)	30.071	29.955	0.143	0.678
Eicosenoic acid (C20:1 n-9)	1.897	1.898	0.024	0.967
Polyunsaturated fatty acid (PUFA)
Linoleic acid (C18:2 n-6)	2.321	2.309	0.262	0.984
Alpha-linolenic acid (C18:3 n-3)	ND³	ND	-	-
Eicosapentaenoic acid (C20:5 n-3, EPA)	0.141	0.135	0.006	0.759
Docosahexaenoic acid (C22:6 n-3, DHA)	8.781	8.926	0.151	0.620
Total SFA	56.584	55.925	0.277	0.396
Total MUFA	32.494	32.501	0.192	0.987
Total PUFA	10.852	11.685	0.240	0.062
Total n-3 PUFA⁴	8.705	9.014	0.125	0.136
Total n-6 PUFA⁵	1.806	1.768	0.097	0.901
PUFA:SFA ratio⁶	0.192	0.207	0.005	0.134
n-6:n-3 PUFA ratio⁷	0.210	0.231	0.018	0.607
Atherogenic index⁸	0.664	0.661	0.008	0.921

¹Pigs (n = 36; 18 pigs/treatment) were fed either a corn-soybean meal diet containing 1.5% soybean oil (SOY1.5) or diets containing with 3.0% soybean oil (SOY3.0). Values represent the least square means. ²SEM = standard error of the least square means. ³ND = not detected. ⁴Total n-3 PUFA = {[C18:3 n-3] + [C20:5 n-3] + [C22:6 n-3]}. ⁵Total n-6 PUFA = C18:2 n-6. ⁶PUFA:SFA ratio = total PUFA/total SFA. ⁷Σ n-6/Σ n-3 PUFA ratio. ⁸Atherogenic index = (4 × [C14:0]) + (C16:0)/(total MUFA] + [total PUFA]), where brackets indicate concentrations [17].

ISSN: 1471-2164