Table 6.
Fatty acid composition (g/100 g fat) and fatty acid indices in meat (M. longissimus dorsi) and subcutaneous fat from pigs fed either a control diet (Contr) (n = 15) or a diet supplemented with rapeseed products (RS) (n = 15). The mean, SEM and t-test (P) in the meat and backfat in the two treatment groups are shown
| Meat | Backfat | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Control | RS | Control | RS | |||||||
| Mean | SEM | Mean | SEM | P | Mean | SEM | Mean | SEM | P | |
| C14:0 | 1.12 | 0.054 | 1.02 | 0.045 | 0.171 | 1.31 | 0.036 | 1.14 | 0.024 | 0.001 |
| C16:0 | 21.8 | 0.306 | 20.7 | 0.388 | 0.030 | 24.7 | 0.253 | 20.7 | 0.303 | <0.001 |
| C16:1n7 | 3.04 | 0.131 | 2.48 | 0.145 | 0.008 | 2.28 | 0.101 | 1.67 | 0.070 | <0.001 |
| C18:0 | 11.8 | 0.145 | 11.4 | 0.174 | 0.111 | 14.1 | 0.426 | 10.8 | 0.290 | <0.001 |
| C18:1c9 | 32.5 | 0.720 | 32.9 | 0.909 | 0.698 | 38.6 | 0.417 | 41.0 | 0.368 | <0.001 |
| C18:2n6 (LA) | 11.8 | 0.529 | 13.1 | 0.684 | 0.153 | 10.1 | 0.389 | 13.6 | 0.496 | <0.001 |
| C18:3n6 | 0.17 | 0.013 | 0.13 | 0.009 | 0.017 | 0.02 | 0.001 | 0.03 | 0.002 | 0.034 |
| C18:3n3 (ALA) | 0.50 | 0.015 | 1.21 | 0.047 | <0.001 | 1.03 | 0.041 | 3.06 | 0.094 | <0.001 |
| C20:2n6 | 0.30 | 0.009 | 0.35 | 0.013 | 0.007 | 0.59 | 0.014 | 0.69 | 0.011 | <0.001 |
| C20:3n6 | 0.57 | 0.031 | 0.52 | 0.032 | 0.303 | 0.09 | 0.004 | 0.09 | 0.004 | 0.935 |
| C20:3n3 | 0.06 | 0.003 | 0.15 | 0.007 | <0.001 | 0.16 | 0.006 | 0.37 | 0.007 | <0.001 |
| C20:4n6 (AA) | 3.27 | 0.228 | 3.00 | 0.202 | 0.400 | 0.18 | 0.008 | 0.18 | 0.007 | 0.697 |
| C20:5n3 (EPA) | 0.43 | 0.034 | 0.67 | 0.041 | <0.001 | 0.03 | 0.003 | 0.06 | 0.004 | <0.001 |
| C22:5n3 (DPA) | 0.83 | 0.052 | 1.03 | 0.063 | 0.024 | 0.15 | 0.007 | 0.23 | 0.008 | <0.001 |
| C22:6n3 (DHA) | 0.55 | 0.059 | 0.48 | 0.036 | 0.287 | 0.10 | 0.010 | 0.11 | 0.011 | 0.726 |
| AA/EPA | 7.77 | 0.369 | 4.47 | 0.097 | <0.001 | 6.49 | 0.437 | 3.192 | 0.100 | <0.001 |
| n-6/n-3 | 6.60 | 0.144 | 4.73 | 0.056 | <0.001 | 7.97 | 0.107 | 3.99 | 0.047 | <0.001 |
| 16:1n7/16:0 | 0.14 | 0.004 | 0.12 | 0.006 | 0.009 | 0.09 | 0.004 | 0.08 | 0.004 | 0.055 |
| 18:1c9/18:0 | 2.76 | 0.073 | 2.90 | 0.110 | 0.294 | 2.77 | 0.102 | 3.85 | 0.124 | <0.001 |
| EPA/ALA | 0.85 | 0.051 | 0.55 | 0.024 | <0.001 | 0.03 | 0.002 | 0.02 | 0.001 | <0.001 |
| DPA/ALA | 1.63 | 0.068 | 0.85 | 0.039 | <0.001 | 0.14 | 0.004 | 0.08 | 0.002 | <0.001 |
| DHA/ALA | 1.08 | 0.096 | 0.39 | 0.024 | <0.001 | 0.10 | 0.008 | 0.03 | 0.003 | <0.001 |
| DPA/EPA | 1.97 | 0.065 | 1.53 | 0.039 | <0.001 | 5.23 | 0.231 | 3.98 | 0.134 | <0.001 |
| DHA/DPA | 0.65 | 0.037 | 0.47 | 0.023 | <0.001 | 0.66 | 0.041 | 0.45 | 0.034 | 0.001 |
| AA/LA | 0.28 | 0.010 | 0.23 | 0.006 | 0.001 | 0.02 | 0.001 | 0.01 | 0.000 | <0.001 |
| EPA+DPA+DHA/ALA | 3.56 | 0.200 | 1.79 | 0.074 | 0.000 | 0.27 | 0.012 | 0.13 | 0.005 | <0.001 |
n6/n3 = (18:2n6 + 20:4n6)/(18:3n3 + 20:5n3 + 22:5n3 + 22:6n3).
P < 0.05 was used as a significant difference between the groups.