Table 3.
Placenta fatty acid profile from cows supplemented with saturated fat, flaxseed oil, or fish oil
| FA, % | Treatment1 | SEM | P-value | ||
|---|---|---|---|---|---|
| CTL | FLX | FO | |||
| C14:02 | 1.40 | 1.22 | 1.37 | 0.06 | 0.15 |
| C16:02 | 27.43 | 25.31 | 26.84 | 1.53 | 0.62 |
| C16:12 | 0.84b | 2.71ab | 3.83a | 0.58 | 0.03 |
| C16:22 | 6.68a | 1.53b | 0.85b | 1.02 | 0.0002 |
| C16:32 | 0.08 | 0.14 | 0.04 | 0.05 | 0.52 |
| C18:02 | 9.78 | 14.89 | 12.72 | 2.80 | 0.48 |
| C18:1n-92 | 37.10 | 33.53 | 35.39 | 2.71 | 0.67 |
| C18:1n-72 | 0.26 | 0.22 | 0.16 | 0.04 | 0.33 |
| C18:2n-62 | 7.25 | 8.75 | 8.96 | 1.43 | 0.67 |
| C18:3n-3 (ALA)2 | 4.66 | 5.52 | 4.75 | 0.40 | 0.32 |
| C20:4n-62 | 4.22 | 4.28 | 3.17 | 0.91 | 0.64 |
| C20:5n-3 (EPA)2 | 0.79 | 0.87 | 0.57 | 0.13 | 0.31 |
| C22:5n-32 | 0.03 | 0.04 | 0.05 | 0.01 | 0.45 |
| C22:6n-3 (DHA)2 | 1.16 | 0.98 | 1.30 | 0.17 | 0.47 |
| SFA | 38.62 | 41.42 | 40.94 | 1.53 | 0.43 |
| MUFA | 38.20 | 36.46 | 39.37 | 2.29 | 0.68 |
| PUFA | 23.18 | 22.12 | 19.69 | 1.19 | 0.18 |
| Total n-3 FAs | 6.64 | 7.41 | 6.66 | 0.60 | 0.61 |
| Total n-6 FAs | 11.48 | 13.03 | 12.13 | 1.87 | 0.84 |
| n-6:n-3 FAs ratio | 1.71 | 1.76 | 1.94 | 0.36 | 0.89 |
1Dairy cows at d 257 of pregnancy were divided into three nutritional groups supplemented with (i) CTL – encapsulated saturated fat, (ii) FLX – encapsulated flaxseed oil providing ALA, or (iii) FO – encapsulated fish oil providing EPA and DHA
2C14:0 to C22:6n-3: % of total FAs identified
ALA Alpha-linolenic acid, DHA Docosahexaenoic acid, EPA Eicosapentaenoic acid, FAs Fatty acids, SFA Saturated FA, MUFA Monounsaturated FA, PUFA Polyunsaturated FA
a,bValues with different superscript letters in a row are significantly different at P ≤ 0.05