Table 5.
Effects of different ratios of n-6:n-3 PUFA in the sow diet on the fatty acid composition of milk at d 21 of lactation
|
Item |
Dietary n-6:n-3 PUFA ratio |
SEM |
P |
||
|---|---|---|---|---|---|
| 3:1 | 9:1 | 13:1 | |||
| Fatty acid composition (mg/g) |
|
|
|
|
|
| C14:0 |
1.86 |
2.04 |
1.93 |
0.25 |
0.88 |
| C16:0 |
17.30 |
18.39 |
17.25 |
2.22 |
0.92 |
| C18:0 |
2.77 |
2.55 |
2.34 |
0.30 |
0.60 |
| SFA |
21.94 |
22.98 |
21.53 |
2.66 |
0.92 |
| C16:1n-7 |
4.46 |
4.40 |
3.64 |
0.67 |
0.64 |
| C18:1n-9 |
15.82a |
15.83a |
11.89b |
1.05 |
0.03 |
| C18:1n-7 |
0.92ab |
1.04aa |
0.62bb |
0.10 |
0.04 |
| MUFA |
21.20 |
21.26 |
16.16 |
1.58 |
0.07 |
| C18:2n-6 |
12.84 |
11.60 |
12.06 |
1.65 |
0.87 |
| C20:4n-6 |
0.24 |
0.27 |
0.24 |
0.03 |
0.78 |
| N-6 PUFA |
13.08 |
11.87 |
12.30 |
1.68 |
0.88 |
| C18:3n-3 |
3.97a |
1.08b |
1.00b |
0.58 |
< 0.01 |
| C20:5n-3 |
0.07a |
0.03b |
0.04b |
0.01 |
0.02 |
| C22:6n-3 |
0.04 |
0.04 |
0.04 |
0.01 |
0.74 |
| N-3 PUFA |
4.08a |
1.15b |
1.07b |
0.58 |
< 0.01 |
| Ratio of n-6:n-3 PUFA | 3.21a | 10.33b | 11.48c | 0.33 | < 0.01 |
*Within a row, treatments with unlike superscripts are different (P < 0.05).