Table 6.
Effect of supplementing selenium (Se) and linseed (LO) to the chicken feed on product/precursor ratios between fatty acids; indices for Delta-9 desaturase ( D-9d ), Delta-6 desaturase ( D-6d ), Delta-5 desaturase ( D-5d ), Elongase and combined effects of desaturases and elongases ( Comb DE )
| |
Selenium |
|
Linseed oil |
|
Low Se without LO |
High Se with LO |
|
||
|---|---|---|---|---|---|---|---|---|---|
| |
Low |
High |
|
Without |
With |
|
|
||
| Product/precursor indices | n = 33 | n = 32 | p | n = 32 | n = 33 | p | n = 16 | n = 16 | p |
|
D-9d 16:1n-7/16:0 |
0.10 |
0.11 |
0.169 |
0.10 |
0.11 |
0.041 |
0.09 |
0.12 |
0.017 |
|
D-9d 18:1n-9/18:0 |
2.07 |
2.28 |
0.103 |
2.14 |
2.20 |
0.637 |
2.05 |
2.33 |
0.108 |
|
D-6d 18:3n-6/18:2n-6 |
0.006 |
0.006 |
0.747 |
0.006 |
0.005 |
<0.001 |
0.007 |
0.005 |
0.008 |
|
D-5d 20:4n-6/20:3n-6 |
6.00 |
6.09 |
0.883 |
8.15 |
4.06 |
<0.001 |
8.08 |
4.09 |
<0.001 |
|
Elongase 20:3n-6/18:3n-6 |
10.52 |
9.38 |
0.320 |
6.89 |
12.86 |
<0.001 |
7.08 |
11.89 |
<0.001 |
|
Comb DE 20:3n-6/18:2n-6 |
0.06 |
0.05 |
0.086 |
0.04 |
0.07 |
<0.001 |
0.05 |
0.06 |
<0.001 |
|
Comb DE 20:4n-6/18:2n-6 |
0.32 |
0.28 |
0.087 |
0.34 |
0.26 |
<0.001 |
0.36 |
0.25 |
<0.001 |
|
Elongase 22:5n-3/20:5n-3 |
2.88 |
2.78 |
0.768 |
4.10 |
1.64 |
<0.001 |
4.16 |
1.60 |
<0.001 |
|
Comb DE 20:5n-3/18:3n-3 |
0.47 |
0.40 |
0.212 |
0.33 |
0.54 |
<0.001 |
0.36 |
0.50 |
0.042 |
|
Comb DE 22:5n-3/18:3n-3 |
1.23 |
1.01 |
0.181 |
1.36 |
0.90 |
0.003 |
1.49 |
0.81 |
0.005 |
|
Comb DE 22:6n-3/18:3n-3 |
1.03 |
0.83 |
0.256 |
1.32 |
0.57 |
<0.001 |
1.43 |
0.48 |
<0.001 |
|
Comb DE 22:6n-3/20:5n-3 |
2.55 |
2.27 |
0.499 |
3.90 |
1.03 |
<0.001 |
4.08 |
0.93 |
<0.001 |
|
Comb DE 22:6n-3/22:5n-3 |
0.81 |
0.75 |
0.275 |
0.95 |
0.62 |
<0.001 |
0.97 |
0.59 |
<0.001 |
| 20:5 + 22:5 + 22:6/18:3n-3 | 2.73 | 2.24 | 0.175 | 3.01 | 2.01 | 0.004 | 3.27 | 1.79 | 0.003 |