Table 3.
Fatty acid profile (mg g−1 DM) of ruminal digesta from steers fed grass and sugar beet (GS), and GS with the addition of flax (GSF) or echium oil (GSE).*
Fatty acid | Diets | SED | P | ||
---|---|---|---|---|---|
GS | GSF | GSE | |||
Branched and odd chain fatty acids (BOC) | 1.437a | 1.450a | 1.547a | 0.060 | 0.231 |
12:0 | 0.612a | 0.651a | 0.653a | 0.03 | 0.350 |
14:0 | 0.312a | 0.336b | 0.334b | 0.007 | 0.016 |
16:0 | 3.207a | 4.251b | 4.980c | 0.140 | < 0.001 |
18:0 | 4.193a | 9.783b | 11.061b | 0.580 | < 0.001 |
18:1 trans-6,-7,-8 | 0.024a | 0.246b | 0.253b | 0.009 | < 0.001 |
18:1 trans-9 | 0.019a | 0.166b | 0.217c | 0.006 | < 0.001 |
18:1 trans-10 | 0.030a | 0.201b | 0.246c | 0.001 | < 0.001 |
18:1 trans-11 | 0.555a | 2.999b | 4.797c | 0.320 | < 0.001 |
18:1 trans-12 | 0.034a | 0.231b | 0.291c | 0.013 | < 0.001 |
Sum 18:1 trans | 0.850a | 4.926b | 6.832c | 0.352 | < 0.001 |
18:1 cis-9 | 0.606a | 3.423b | 3.419b | 0.176 | < 0.001 |
18:1 cis-11 | 0.089a | 0.120b | 0.221c | 0.008 | < 0.001 |
18:1 cis-12 | 0.010a | 0.082b | 0.051c | 0.008 | < 0.001 |
18:1 cis-13 | 0.011a | 0.027b | 0.030b | 0.003 | < 0.001 |
Sum 18:1 cis | 0.126a | 0.378b | 0.388b | 0.021 | < 0.001 |
18:2 cis-9, trans-11 | 0.029a | 0.274b | 0.332c | 0.022 | < 0.001 |
18:2 trans-9, trans-12 | 0.009a | 0.054b | 0.029c | 0.006 | < 0.001 |
18:2 cis-9, cis-12 | 1.429a | 2.162b | 2.331b | 0.238 | 0.015 |
18:2 trans-10, cis-12 | 0.018a | 0.019a | 0.021a | 0.003 | 0.538 |
18:2 trans-11, trans-13 | 0.016a | 0.124b | 0.125b | 0.011 | < 0.001 |
Sum 18:2 Conjugated linoleic acid | 0.081a | 0.470b | 0.579c | 0.033 | < 0.001 |
18:2n-6 | 1.429a | 2.162b | 2.331b | 0.240 | 0.020 |
18:3n-3 | 1.104a | 3.670b | 2.970b | 0.374 | < 0.001 |
18:4n-3 | 0.049a | 0.041a | 1.261b | 0.170 | < 0.001 |
20:0 | 0.190a | 0.248b | 0.257b | 0.011 | < 0.001 |
20:4 | ND | ND | ND | NA | NA |
20:5 | 0.000a | 0.008b | 0.013c | 0.000 | < 0.001 |
22:5 | ND | ND | ND | NA | NA |
22:6 | ND | ND | ND | NA | NA |
Sum LCPUFA (C20 and above) | 0.681a | 0.921b | 1.166c | 0.082 | 0.001 |
Total fatty acids | 13.72a | 35.75b | 38.97b | 2.145 | < 0.001 |
Values are means; n ≥ 5.
Numbers with a different superscript vary significantly (P < 0.05) from each other. ND, not detectable; SED, standard deviation.