Table 3

Fatty Acid Composition of Rat Soleus After Dietary Supplementation with 22:6n-3 and 22:5n-6*



Artificially reared


Dam reared (n = 7)
AR-LA (n = 7)
AR-DPAn-6 (n = 7)
AR-DHA+DPAn-6 (n = 8)
AR-DHA (n = 7)

Fatty acids
(weight % of total fatty acids)
12:0
6.3 ± 2.2a
2.55 ± 0.46b
2.53 ± 0.45b
2.55 ± 0.70b
2.63 ± 0.73b
14:0
5.1 ± 1.1a
3.02 ± 0.27b
3.03 ± 0.25b
3.12 ± 0.40b
3.07 ± 0.51b
16:0 DMA
0.93 ± 0.42
0.75 ± 0.25
0.77 ± 0.37
0.66 ± 0.25
0.67 ± 0.36
16:0
20.1 ± 2.0
20.6 ± 1.6
20.8 ± 0.9
21.6 ± 1.0
20.3 ± 0.6
18:0 DMA
0.54 ± 0.27
0.26 ± 0.12
0.30 ± 0.17
0.28 ± 0.15
0.27 ± 0.15
18:0
8.4 ± 2.2
6.7 ± 1.7
6.6 ± 1.7
5.6 ± 1.4
6.4 ± 2.6
20:0
0.10 ± 0.02a
0.05 ± 0.02b
0.05 ± 0.01b
0.05 ± 0.02b
0.06 ± 0.03b
22:0
0.11 ± 0.08
0.04 ± 0.02
0.05 ± 0.02
0.05 ± 0.05
0.05 ± 0.03
24:0
0.15 ± 0.09a
0.06 ± 0.02b
0.07 ± 0.03ab
0.08 ± 0.06ab
0.09 ± 0.05ab
Total saturates
41.6 ± 0.8a
34.0 ± 2.1b
34.2 ± 2.4b
34.0 ± 1.6b
33.5 ± 2.1b






16:1 n-7
7.3 ± 1.6
7.8 ± 1.4
7.6 ± 1.0
8.3 ± 1.8
7.5 ± 2.3
18:1 DMA
0.08 ± 0.06
0.07 ± 0.02
0.08 ± 0.04
0.10 ± 0.11
0.08 ± 0.05
18:1 n-9
17.3 ± 2.5a
31.2 ± 3.7b
31.6 ± 4.2b
32.8 ± 3.8b
32.1 ± 5.5b
18:1 n-7
3.93 ± 0.36
4.55 ± 0.61
4.40 ± 0.50
4.27 ± 0.45
4.38 ± 0.33
20:1 n-9
0.09 ± 0.02a
0.19 ± 0.03b
0.18 ± 0.05b
0.20 ± 0.04b
0.20 ± 0.05b
24:1 n-9
0.13 ± 0.04
0.12 ± 0.04
0.11 ± 0.04
0.12 ± 0.05
0.14 ± 0.07
Total monounsaturates
28.8 ± 4.2a
44.0 ± 5.2b
44.0 ± 5.1b
45.8 ± 5.3b
44.4 ± 7.9b






18:2 n-6
13.1 ± 1.9a
8.4 ± 1.0b
8.24 ± 0.77b
7.82 ± 0.52b
8.4 ± 1.2b
18:3 n-6
0.03 ± 0.01a
0.03 ± 0.01b
0.024 ± 0.004b
0.022 ± 0.004ab
0.022 ± 0.004ab
20:2 n-6
0.06 ± 0.01a
0.04 ± 0.01b
0.04 ± 0.01b
0.04 ± 0.01b
0.05 ± 0.01ab
20:3 n-6
0.27 ± 0.06
0.22 ± 0.06
0.23 ± 0.07
0.20 ± 0.05
0.20 ± 0.07
20:4 n-6
5.8 ± 1.7
6.2 ± 1.8
5.4 ± 1.7
4.2 ± 1.4
4.9 ± 2.4
22:4 n-6
0.40 ± 0.09ab
0.56 ± 0.14a
0.41 ± 0.11ab
0.27 ± 0.03b
0.31 ± 0.14b
22:5 n-6
0.27 ± 0.10a
2.26 ± 0.73b
3.03 ± 0.99b
0.78 ± 0.29a
0.56 ± 0.32a
Total n-6 PUFA
19.9 ± 3.5a
17.7 ± 3.5ab
17.3 ± 3.2ab
13.3 ± 1.9b
14.4 ± 3.7b






18:3 n-3
0.78 ± 0.23a
0.03 ± 0.01b
0.023 ± 0.003b
0.03 ± 0.01b
0.04 ± 0.04b
20:5 n-3
0.08 ± 0.02a
-
-
0.02 ± 0.01b
0.025 ± 0.003b
22:5 n-3
0.59 ± 0.19a
0.04 ± 0.02b
0.04 ± 0.01b
0.06 ± 0.03b
0.08 ± 0.03b
22:6 n-3
4.3 ± 1.7a
0.32 ± 0.14b
0.44 ± 0.32b
3.2 ± 2.0a
3.7 ± 2.1a
Total n-3 PUFA
5.7 ± 1.7a
0.40 ± 0.16b
0.50 ± 0.32b
3.3 ± 2.0c
3.8 ± 2.1ac






Total PUFA
25.6 ± 4.5a
18.1 ± 3.7b
17.8 ± 3.4b
16.6 ± 3.9b
18.3 ± 5.7b
Total HUFA
11.7 ± 3.6
9.6 ± 2.8
9.5 ± 3.0
8.7 ± 3.6
9.8 ± 5.0
% of n-3 HUFA in HUFA
41.3 ± 6.3a
3.8 ± 0.6b
4.9 ± 2.7b
35.0 ± 6.9a
38.2 ± 3.12a
Total FA (mg/g)
26.1 ± 8.5
34.5 ± 10.6
37.4 ± 15.6
43.2 ± 17.2
40.0 ± 19.5

*Values are mean ± SD. Values in a row not sharing a roman superscript are significantly different at P < 0.05 by Tukey's honestly significantly difference test after a significant F-value (P < 0.05) by one-way ANOVA. AR-LA, 18:2n-6 artificial reared diet; AR-DPAn-6, 22:5n-6 artificial reared diet; AR-DHA+DPAn-6, 22:6n-3 + 22:5n-6 artificial reared diet; AR-DHA, 22:6n-3 artificial reared diet; DMA, dimethyl acetal; PUFA, polyunsaturated fatty acids; HUFA, highly unsaturated fatty acids (≥ 20 carbons, ≥ 3 carbon-carbon double bonds).

Stark et al. Lipids in Health and Disease 2007 6:13   doi:10.1186/1476-511X-6-13