Table 1 Summary of descriptive statistics on the FA composition traits and FA metabolic indices in the LD muscle from BC1_DU pigs.

From: Global analysis of the association between pig muscle fatty acid composition and gene expression using RNA-Seq

Trait

Name

Mean

SD

Min

Max

SEM

CV

C14:0

Myristic acid

1.27

0.23

0.73

1.78

0.02

17.95

C16:0

Palmitic acid

23.91

1.65

18.69

27.59

0.15

6.90

C17:0

Margaric acid

0.25

0.11

0.12

0.90

0.01

42.27

C18:0

Stearic acid

14.38

1.69

8.81

19.90

0.15

11.78

C20:0

Arachidic acid

0.23

0.08

0.08

0.71

0.01

33.94

C16:1n-7

Palmitoleic acid

2.79

0.53

1.24

4.08

0.05

18.83

C16:1n-9

9-Hexadecenoic acid

0.30

0.12

0.16

0.92

0.01

38.62

C17:1

Heptadecenoic acid

0.19

0.09

0.10

0.71

0.01

46.53

C18:1n-9

Oleic acid

35.93

5.71

19.99

44.15

0.50

15.88

C18:1n-7

Vaccenic acid

3.82

0.30

3.02

4.83

0.03

7.97

C20:1n-9

Gondoic acid

0.73

0.16

0.35

1.48

0.01

22.38

C18:2n-6

Linoleic acid

12.13

5.82

4.81

29.34

0.51

48.01

C18:3n-3

α-Linolenic acid

0.40

0.13

0.15

0.89

0.01

32.77

C20:2n-6

Eicosadienoic acid

0.43

0.12

0.14

0.91

0.01

28.61

C20:3n-3

Eicosatrienoic acid

0.18

0.10

0.02

0.65

0.01

54.98

C20:3n-6

Dihomo-gamma-linolenic acid

0.45

0.29

0.09

1.49

0.03

63.29

C20:4n-6

Arachidonic acid

2.58

1.94

0.47

10.51

0.17

75.01

SFA

Saturated FAs

40.04

3.05

29.11

46.11

0.27

7.61

MUFA

Monounsaturated FAs

43.47

6.13

26.17

52.30

0.54

14.11

PUFA

Polyunsaturated FAs

16.00

8.11

6.00

38.62

0.71

50.71

ACL

Average chain length

17.50

0.09

17.33

17.79

0.01

0.49

MUFA/SFA

Ratio of MUFA to SFA

1.09

0.13

0.62

1.36

0.01

11.84

MUFA/PUFA

Ratio of MUFA to PUFA

3.54

1.85

0.71

8.54

0.16

52.32

PUFA/SFA

Ratio of PUFA to SFA

0.42

0.25

0.14

1.24

0.02

61.27

C16:1n-7/C16:0

Ratio of palmitoleic to palmitic

0.12

0.02

0.05

0.16

0.001

16.11

C18:1n-9/C18:0

Ratio of oleic to stearic

2.51

0.37

1.22

3.39

0.03

14.87

C20:1n-9/C20:0

Ratio of gondoic to arachidic

3.49

1.30

1.07

10.84

0.11

37.30

C20:4n-6/C20:3n-6

Ratio of arachidonic to dihomo-gamma-linolenic

5.37

1.11

2.62

8.66

0.10

20.65

C18:1n-7/C16:1n-7

Ratio of vaccenic to palmitoleic

1.41

0.29

1.02

3.37

0.03

20.46

C20:3n-6/C18:2n-6

Ratio of dihomo-gamma-linolenic to linoleic

0.04

0.01

0.02

0.08

0.0007

25.52

C20:4n-6/C18:2n6

Ratio of arachidonic to linoleic

0.19

0.06

0.06

0.41

0.01

33.07

C18:2n-6/C18:3n-3

Ratio of linoleic to α-linolenic

30.23

10.25

12.15

73.65

0.90

33.92

ω6/ω3

Ratio of omega-6 to omega-3

26.46

8.07

14.33

49.78

0.71

30.48

PI

Peroxidability index

26.06

14.19

9.48

73.21

1.25

54.44

DBI

Double-bond index

0.82

0.15

0.63

1.31

0.01

18.14

UI

Unsaturated index

2.10

0.58

1.39

4.18

0.05

27.72

  1. Fatty acid composition is expressed as percentage of total fatty acids. SEM—standard error of the mean. CV—coefficient of variation (in percentage). The following sums of fatty acids, ratios and indexes were calculated: SFA = C14:0 + C16:0 + C17:0 + C18:0 + C20:0; MUFA = C16:1n-7 + C17:1 + C18:1n-7 + C18:1n-9 + C20:1n-9; PUFA = C18:2n-6 + C18:3n-3 + C20:2n-6 + C20:3n-6 + C20:4n-6; ω6/ω3 = (C18:2n-6 + C20:2n-6 + C20:3n-6 + C20:4n-6)/(C18:3n-3 + C20:3n-3); Average Chain Length (ACL) = (C14:0) × 14 + (C16:0 + C16:1n-9 + C16:1n-7) × 16 + (C17:0 + C17:1) × 17 + (C18:0 + C18:1n-9 + C18:1n-7 + C18:2n-6 + C18:3n-3) × 18 + (C20:0 + C20:1n-9 + C20:2n-6 + C20:3n-6 + C20:4n-6 + C20:3n-3) × 20)/100; Double Bond Index (DBI) = (C16:1n-9 + C16:1n-7 + C17:1 + C18:1n-9 + C18:1n-7 + C20:1n-9) × 1 + (C18:2n-6 + C20:2n-6) × 2 + (C18:3n-3 + C20:3n-6 + C20:3n-3) × 3 + (C20:4n-6) × 4)/100; and Peroxidability Index (PI) = (C16:1n-9 + C16:1n-7 + C17:1 + C18:1n-9 + C18:1n-7 + C20:1n-9) × 0.025 + (C18:2n-6 + C202n-6) × 1 + (C18:3n-3 + C20:3n-6 + C20:3n-3) × 2 + (C20:4n-6) × 4.
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