Table 1.
Total lipids and fatty acid composition of subcutaneous adipose tissue from Alentejana and Barrosã breeds fed either high or low silage-based diets1-3
| |
Alentejana |
Barrosã |
P |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |
HS |
LS |
HS |
LS |
Breed |
Diet |
Breed × Diet |
||||
| Mean | SE | Mean | SE | Mean | SE | Mean | SE | ||||
| Total lipids |
58.44 |
1.748 |
59.67 |
1.063 |
63.89 |
1.729 |
65.17 |
1.689 |
0.002 |
0.434 |
0.987 |
|
Main individual fatty acids |
|
|
|
|
|
|
|
|
|
|
|
| 14:0§ |
3.50 |
0.198 |
3.52 |
0.189 |
2.98 |
0.130 |
3.23 |
0.164 |
0.024 |
0.426 |
0.517 |
| 16:0§ |
27.24 |
0.429 |
26.57 |
0.552 |
23.63 |
0.444 |
25.11 |
0.659 |
<0.001 |
0.449 |
0.051 |
| 16:1c9§ |
4.03 |
0.380 |
3.83 |
0.242 |
4.89 |
0.263 |
5.41 |
0.248 |
<0.001 |
0.590 |
0.218 |
| a-17:0§ |
1.30 |
0.026 |
1.13 |
0.031 |
1.45 |
0.035 |
1.35 |
0.038 |
<0.001 |
<0.001 |
0.315 |
| 18:0 |
14.53 |
0.776 |
12.94 |
0.804 |
11.44 |
0.713 |
9.75 |
0.658 |
<0.001 |
0.034 |
0.946 |
| 18:1t11 |
1.41 |
0.123 |
1.36 |
0.129 |
1.88 |
0.125 |
1.74 |
0.113 |
0.002 |
0.456 |
0.705 |
| 18:1c9§ |
33.5 |
1.019 |
34.65 |
0.835 |
37.43 |
0.752 |
37.18 |
0.872 |
<0.001 |
0.610 |
0.431 |
| 18:1c11 |
4.13 |
0.396 |
3.7 |
0.367 |
4.32 |
0.144 |
4.53 |
0.142 |
0.093 |
0.692 |
0.279 |
| CLA(c9t11) |
0.40 |
0.034 |
0.34 |
0.026 |
0.80 |
0.041 |
0.81 |
0.041 |
<0.001 |
0.504 |
0.324 |
| 18:2n-6 |
1.49b |
0.030 |
2.29c |
0.141 |
1.70a |
0.050 |
1.82a |
0.064 |
0.181 |
<0.001 |
0.002 |
|
Partial sums |
|
|
|
|
|
|
|
|
|
|
|
| Σ SFA |
46.89 |
1.000 |
44.76 |
1.303 |
39.61 |
1.035 |
39.21 |
1.184 |
<0.001 |
0.273 |
0.453 |
| Σ MUFA |
44.89 |
1.034 |
46.00 |
1.323 |
50.62 |
1.092 |
51.54 |
1.223 |
<0.001 |
0.395 |
0.933 |
| Σ TFA |
2.73 |
0.181 |
3.57 |
0.277 |
3.75 |
0.176 |
3.79 |
0.145 |
0.004 |
0.037 |
0.057 |
| Σ PUFA |
1.80a |
0.101 |
2.58c |
0.144 |
2.07b |
0.055 |
2.11b |
0.067 |
0.347 |
<0.001 |
0.001 |
| Σ n-3 PUFA |
0.27a |
0.012 |
0.26a |
0.016 |
0.32b |
0.008 |
0.25a |
0.005 |
0.081 |
<0.001 |
0.012 |
| Σ n-6 PUFA |
1.53a |
0.090 |
2.32c |
0.134 |
1.75b |
0.049 |
1.86b |
0.065 |
0.216 |
<0.001 |
0.001 |
| Σ BCFA | 2.69 | 0.085 | 2.06 | 0.051 | 2.77 | 0.068 | 2.25 | 0.060 | 0.051 | <0.001 | 0.411 |
1Different superscripts differ at least P < 0.05. SFA, sum of 12:0,14:0, 15:0, 16:0, 17:0, 18:0 and 20:0; MUFA, sum of 14:1c9, 16:1c7, 16:1c9, 17:1c9, 18:1c9, 18:1c11, 18:1c12, 18:1c13, 18:1c15, 19:1 and 20:1c11; TFA, sum of 18:1t6-t8, 18:1t9, 18:1t10, 18:1t11, 18:1t12, 18:1t16 + c14, 18:2c9t11 and 18:2t11c15; PUFA, sum of 18:2n-6, 18:3n-3, 20:3n-6 and 20:4n-6; BCFA, sum of i-14:0, i-15:0, a-15:0, i-16:0, i-17:0, a-17:0 and i-18:0.
2Total lipids are expressed as g/100 g muscle; fatty acid composition is expressed as g/100 g fatty acids.
3HS, High silage; LS, Low silage.
§Variable adjusted for total lipids.