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Table 3 Fatty acid composition (percentage of weight) of total lipid from livers of Atlantic salmon (Salmo salar) fed different dietary oils

From: Functional genomics reveals increases in cholesterol biosynthetic genes and highly unsaturated fatty acid biosynthesis after dietary substitution of fish oil with vegetable oils in Atlantic salmon (Salmo salar)

 

FO

LO

RO

SO

14:0

2.7 ± 0.4a

0.6 ± 0.0b

1.0 ± 0.1b

0.6 ± 0.0b

16:0

16.7 ± 0.8a

10.0 ± 0.8b

12.1 ± 1.0b

11.4 ± 1.3b

18:0

5.9 ± 0.4a

6.0 ± 0.4a

4.4 ± 0.2b

6.1 ± 0.4a

Total saturated1

25.8 ± 0.5a

16.9 ± 1.0b

17.9 ± 0.9b

18.4 ± 1.2b

16:12

3.7 ± 0.6a

1.0 ± 0.1c

1.8 ± 0.1b

0.9 ± 0.1c

18:1n-9

9.3 ± 1.1c

18.4 ± 1.7b

29.1 ± 2.0a

18.4 ± 2.2b

18:1n-7

2.9 ± 0.1a

1.1 ± 0.1d

2.4 ± 0.1b

1.6 ± 0.1c

20:13

2.5 ± 0.4b

2.0 ± 0.1b

3.8 ± 0.4a

2.2 ± 0.2b

22:14

1.0 ± 0.4

0.8 ± 0.1

1.0 ± 0.2

0.6 ± 0.1

24:1n-9

1.0 ± 0.1a

0.6 ± 0.1b

0.8 ± 0.1ab

0.6 ± 0.1b

Total monoenes

20.3 ± 2.6b

24.0 ± 1.9b

39.0 ± 2.5a

24.3 ± 2.4b

18:2n-6

1.9 ± 0.4c

9.6 ± 0.3b

8.6 ± 0.3b

26.4 ± 1.8a

20:2n-6

0.5 ± 0.0c

1.4 ± 0.1b

1.6 ± 0.1b

4.3 ± 0.2a

20:3n-6

0.3 ± 0.1d

0.6 ± 0.1c

1.1 ± 0.1b

2.5 ± 0.1a

20:4n-6

2.8 ± 0.4a

0.7 ± 0.1c

1.4 ± 0.2b

1.6 ± 0.2b

Total n-6 PUFA5

6.4 ± 0.1c

12.5 ± 0.3b

13.1 ± 0.1b

35.3 ± 1.7a

18:3n-3

0.6 ± 0.2c

20.3 ± 0.9a

2.4 ± 0.2b

2.3 ± 0.1b

18:4n-3

0.6 ± 0.3a

0.8 ± 0.1a

0.3 ± 0.1b

0.2 ± 0.0b

20:3n-3

0.2 ± 0.1b

3.2 ± 0.3a

0.4 ± 0.1b

0.3 ± 0.0b

20:4n-3

1.2 ± 0.3b

3.0 ± 0.0a

1.0 ± 0.1b

0.6 ± 0.1c

20:5n-3

10.7 ± 0.3a

4.0 ± 0.4b

4.8 ± 0.4b

2.6 ± 0.6c

22:5n-3

3.6 ± 0.0a

1.0 ± 0.1c

1.4 ± 0.1b

0.8 ± 0.2c

22:6n-3

30.0 ± 2.7a

14.3 ± 1.6c

19.6 ± 1.8b

15.2 ± 2.3c

Total n-3 PUFA

46.9 ± 2.2a

46.6 ± 1.7a

30.0 ± 1.8b

22.0 ± 3.0c

Total PUFA

54.0 ± 2.2b

59.1 ± 1.6a

43.1 ± 1.7c

57.3 ± 1.5ab

  1. Values are means ± SD of 4 samples each of tissue pooled from 3 fish. Significance of differences between means were determined by one-way ANOVA followed, where appropriate, by Tukey's multiple comparison test as described in the Materials and Methods. Values within a row with a different superscript letter are significantly different (P ≤ 0.05). 1, contains 15:0, 20:0 and 22:0, present in some samples at up to 0.4%; 2, predominantly n-7 isomer; 3, predominantly n-9 isomer; 4, predominantly n-11 isomer; 5, totals include 18:3n-6, 22:4n-6 and 22:5n-6 present in some samples at up to 0.5%.