Table 3.
n -6 and n-3 profile in total lipids of fillet and liver of Antlantic salmon fed fish oil (FO) and soyabean oil (SO)
(Meanvalues with their standard errors n 3 from pooled samples)
| Tissue | Diet | LA
|
AA
|
Sum n-6
|
EPA
|
DHA
|
Sum n-3
|
n-6 HUFA†
|
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SEM | Mean | SEM | Mean | SUM | Mean | SEM | Mean | SEM | Mean | SEM | Mean | SEM | ||
| Fillet‡ (mg/g) | FO | 3·9* | 0·3 | 3·5* | 0·0 | 5·2* | 0·4 | 6·5*- | 0·2 | 11·2* | 0·8 | 24·1* | 1·3 | 5* | 0 |
| SO | 24·6 | 5·0 | 0·3 | 0·0 | 27·7 | 5·7 | 1·9 | 0·1 | 4·9 | 0·4 | 11·3 | 0·9 | 23 | 4 | |
| Liver§ (mg/g) | FO | 0·5** | 0·0 | 0·9** | 0·0 | 1·6* | 0·0 | 3 ·4** | 0·2 | 9·2* | 0·1 | 14·0** | 0·2 | 7* | 0 |
| SO | 9·5 | 1·4 | 1·7 | 0·1 | 14·5 | 0·0 | 1·4 | 0·0 | 5·8 | 0·1 | 8·6 | 0·2 | 39 | 1 | |
LA, linolic acid AA arachidonic acid; HUFA, highly unsaturated fatty acids.
Mean values were significantly different from those of SO-fed salmon:
*
P<0·04,
**
P<0·01.
†
n-6 HUFA is calculated from the Lands equation(4): (20: 3n-6 + 20: 4n-6 + 22: 5n-6)/(20: 3n-6 + 20: 4n-6 + 22: 5n-6 + 20: 5n-3 + 22: 5n-3 + 22: 6n-3) × 100.
‡
Pooled samples; three fish three tanks.
§
Pooled samples; six fish from three tanks; n 3