Table 7.
Effects of dietary fat source and essential fatty acid intake on colostrum composition1
| Trait | Control | CWG | SO | Combination | SEM | P |
|---|---|---|---|---|---|---|
| Crude protein, % | 16.8 | 16.6 | 17.1 | 18.2 | 0.95 | 0.584 |
| Crude fat, % | 4.2 | 4.4 | 4.5 | 3.9 | 0.46 | 0.697 |
| Fatty acid profile, %2 | ||||||
| 14:0 | 1.35 | 1.28 | 1.22 | 1.29 | 0.065 | 0.590 |
| 16:0 | 21.74 | 21.19 | 20.93 | 20.80 | 0.373 | 0.287 |
| 16:1n-9 | 2.90 | 3.03 | 2.63 | 2.55 | 0.183 | 0.227 |
| 18:0 | 5.43 | 5.35 | 5.21 | 5.07 | 0.234 | 0.704 |
| 18:1n-9 | 33.00a | 33.08a | 31.18a | 28.78b | 0.836 | < 0.001 |
| 18:2n-6 | 23.06b | 23.29b | 26.04ab | 28.45a | 1.176 | 0.003 |
| 18:3n-3 | 1.02b | 1.13b | 1.69a | 1.91a | 0.143 | < 0.001 |
| 20:4n-6 | 1.13 | 1.10 | 1.19 | 1.13 | 0.057 | 0.720 |
| 20:5n-3 | 0.056c | 0.068bc | 0.080a | 0.077ab | 0.005 | 0.004 |
| 22:6n-3 | 0.047 | 0.049 | 0.045 | 0.049 | 0.003 | 0.678 |
| Other3 | 8.01 | 8.18 | 7.64 | 7.68 | 0.193 | 0.140 |
Means within row with different superscripts differ (P < 0.05).
A total of 3,451 sows and their litters were used over 28-d experimental periods with 850 to 874 sows per treatment. Experimental treatments contained supplemental fat at 0.5% (Control), 3% (CWG or SO), or 5% (Combination). A subset of 10 sows per treatment were randomly selected for analysis of colostrum composition.
Represented as a percentage of total colostrum fat.
Contains 2% or less of the following: 14:1, 15:0, 17:0, 17:1, 18:1t, 18:2t, 18:3n-6, 20:0, 20:2, 21:0, 22:0, 23:0, 24:0, and unidentifiable fatty acids.