Table 2 Effects of different breeds on fatty acid proportion (%) in subcutaneous tissues of beef cattle.

From: Breed dependent regulatory mechanisms of beneficial and non-beneficial fatty acid profiles in subcutaneous adipose tissue in cattle with divergent feed efficiency

Trait*

ANG

(n = 47)

CHAR

(n = 48)

KC

(n = 48)

SEM

p value

14:0

3.78b

4.16a

3.90ab

0.056

0.017

16:0

28.39a

26.56b

27.11b

0.172

 < 0.0001

18:0

11.80

11.70

11.11

0.024

0.307

SFA

46.03a

44.36b

43.91b

0.277

0.004

BCFA

1.35b

1.65a

1.39b

0.024

 < 0.0001

SFA + BCFA

47.38a

46.01b

45.30b

0.286

0.010

c9-16:1

4.84b

5.61a

5.40a

0.095

0.002

c9-18:1

37.71ab

36.88b

38.46a

0.224

0.014

c11-18:1

1.72b

2.01a

1.90ab

0.040

0.010

t10-18:1

1.17b

1.47a

1.01b

0.053

0.001

trans-18:1

2.53b

3.22a

2.54b

0.067

 < 0.0001

MUFA

50.72b

51.66ab

52.47a

0.281

0.038

ADFA

0.44b

0.54a

0.53a

0.009

 < 0.0001

CLA

0.28b

0.28b

0.43a

0.011

 < 0.0001

n-6

1.03c

1.35a

1.11b

0.019

 < 0.0001

18:3n-3

0.11b

0.13a

0.12b

0.003

0.002

PUFA

1.14c

1.48a

1.24b

0.021

 < 0.0001

PUFA/SFA

0.025c

0.034a

0.028b

0.001

 < 0.0001

FA ratio

0.025c

0.029b

0.033a

0.001

 < 0.0001

SCD proxy

0.27b

0.26b

0.30a

0.004

0.008

  1. *The concentrations of fatty acids were expressed as a percentage of fatty acid methyl esters (FAME) quantified. Significant effects (p < 0.05) of breed on fatty acid are presented. c = cis; t = trans; SFA (sum of saturated fatty acid) = 10:0 + 12:0 + 14:0 + 15:0 + 16:0 + 17:0 + 18:0 + 19:0 + 20:0; BCFA (sum of branched chain fatty acid) = iso−14:0 + iso-15:0 + anteiso-15:0 + iso-16:0 + iso-17:0 + anteiso-17:0 + iso-18:0; SFA + BCFA = sum of SFA and BCFA; trans-18:1 (sum of trans-18:1) = t6-18:1 + t9-18:1 + t10-18:1 + t11-18:1 + t12-18:1 + t13-/t14-18:1; MUFA (sum of monounsaturated fatty acid) = c9-14:1 + c7-16:1 + c9-16:1 + c11-16:1 + c9-17:1 + c9-18:1 + c11-18:1 + c12-18:1 + c13-18:1 + c14-18:1 + t6-18:1 + t9-18:1 + t10-18:1 + t11-18:1 + t12-18:1 + t13-/t14-18:1 + c9-20:1 + c11-20:1; ADFA (sum of atypical dienes fatty acid) = c9,t14-/c9,t13-18:2 + c9,t15-18:2 + c9,t12-18:2 + t11,c15-18:2 + c9,c15-18:2; CLA (sum of conjugated linoleic acid) = t7,c9-18:2 + c9,t11-18:2 + t9,c11-18:2 + t11,t13-18:2 + t7,t9-/t10,t12-18:2; n-6 (sum of omega 6 fatty acids) = 18:2n-6 + 20:3n-6 + 20:4n-6; n-3 (sum of omega 3 fatty acids) = 18:3n-3; PUFA (sum of polyunsaturated fatty acid) = 18:2n-6 + 20:3n-6 + 20:4n-6 + 18:3n-3; PUFA/SFA = ratio of PUFA to SFA; n-6/n-3 = ratio of n − 6 to n − 3 PUFA; FA ratio = (18:3n-3 + c9,t11-18:2 + t11-18:1)/(14:0 + 16:0 + t10-18:1); SCD proxy (stearoyl-CoA desaturase proxy) = c9-14:1/(c9-14:1 + 14:0).
  2. Means in the same row with different superscripts (a, b, c) indicate significance (p < 0.05).
  3. Only major FAs/FA groups are listed in this table. Detailed proportions of the FAs of individual samples are listed in Supplementary Table S6.