Table 1.
Mean, standard deviation (SD) of the mean, coefficient of variation (CV) of the mean, median, genomic heritability estimate (hg 2), posterior standard deviation (Psd), and Phenotypic variation (Pvar) for the content of fat (g/100 g milk) and fatty acids (g/100 g fat)
| Trait | Mean | SD | CV | Median | hg2 | Psd | Pvar |
|---|---|---|---|---|---|---|---|
| Fat |
3.99 |
0.78 |
19.64 |
3.96 |
0.24 |
0.13 |
0.67 |
|
Fatty acids |
|
|
|
|
|
|
|
| C6:0 |
2.69 |
0.35 |
12.97 |
2.72 |
0.24 |
0.13 |
0.12 |
| C8:0 |
1.47 |
0.23 |
15.37 |
1.48 |
0.34 |
0.15 |
0.05 |
| C10:0 |
3.16 |
0.56 |
17.87 |
3.17 |
0.34 |
0.16 |
0.32 |
| C12:0 |
3.57 |
0.65 |
18.14 |
3.55 |
0.27 |
0.15 |
0.43 |
| C13:0 |
0.10 |
0.03 |
30.27 |
0.10 |
0.19 |
0.13 |
0.001 |
| C14:0 |
11.29 |
1.30 |
11.49 |
11.36 |
0.25 |
0.17 |
1.66 |
| C15:0 |
1.10 |
0.20 |
17.89 |
1.09 |
0.13 |
0.10 |
0.04 |
| C16:0 |
28.95 |
3.25 |
11.23 |
28.84 |
0.14 |
0.11 |
0.34 |
| C17:0 |
0.53 |
0.15 |
28.45 |
0.53 |
0.07 |
0.06 |
0.02 |
| C18:0 |
10.54 |
2.20 |
20.89 |
10.26 |
0.19 |
0.13 |
4.15 |
| C14:1 cis-9 |
0.97 |
0.28 |
29.03 |
0.94 |
0.26 |
0.14 |
0.07 |
| C16:1 cis-9 |
1.50 |
0.38 |
25.14 |
1.46 |
0.16 |
0.11 |
0.15 |
| C18:1 trans-11 |
1.70 |
0.56 |
33.27 |
1.62 |
0.09 |
0.08 |
0.27 |
| C18:1 cis-9 |
19.78 |
3.62 |
18.29 |
19.83 |
0.11 |
0.10 |
8.46 |
| C18:2 n-6 |
1.69 |
0.30 |
18.04 |
1.65 |
0.17 |
0.11 |
0.08 |
| C18:3 n-3 |
0.49 |
0.10 |
20.46 |
0.49 |
0.30 |
0.15 |
0.01 |
| CLA cis-9. trans-111 |
0.63 |
0.16 |
26.22 |
0.60 |
0.19 |
0.13 |
0.02 |
|
Groups of fatty acids |
|
|
|
|
|
|
|
| SFA2 |
63.40 |
3.81 |
6.00 |
63.51 |
0.09 |
0.08 |
11.97 |
| UFA3 |
26.76 |
3.87 |
14.46 |
26.54 |
0.33 |
0.19 |
11.33 |
| MUFA4 |
23.95 |
3.72 |
15.52 |
23.84 |
0.34 |
0.20 |
9.85 |
| PUFA5 |
2.81 |
0.45 |
15.93 |
2.76 |
0.28 |
0.15 |
0.19 |
| C6:0 to C14:06 |
22.18 |
2.80 |
12.63 |
22.26 |
0.28 |
0.17 |
7.94 |
|
Fatty acids indices |
|
|
|
|
|
|
|
| C14 index7 |
0.08 |
0.02 |
25.02 |
0.08 |
0.31 |
0.16 |
0.002 |
| C16 index8 |
0.05 |
0.01 |
21.53 |
0.05 |
0.19 |
0.12 |
3.80 |
| C18 index9 |
0.65 |
0.08 |
12.24 |
0.66 |
0.35 |
0.19 |
1.12 |
| CLA index1.10 | 0.28 | 0.06 | 22.21 | 0.27 | 0.16 | 0.12 | 18.55 |
1CLA = conjugated linoleic acid.
2Saturated fatty acids: C6:0, C8:0, C10:0, C12:0, C13:0, C14:0, C15:0, C16:0, C17:0, and C18:0.
3Unsaturated fatty acids: C14:1, C16:1, C18:1 trans-11, C18:1 cis-9, C18:2 n-6, C18:3 n-3, and CLA cis-9, trans-11.
4Monounsaturated fatty acids: C14:1, C16:1, C18:1t11, and C18:1 cis-9.
5Polyunsaturated fatty acids: C18:2 n-6, C18:3 n-3, and CLA cis-9, trans-11.
6C6:0, C8:0, C10:0, C12:0, and C14:0.
7C14:1 cis-9/(C14:0 + C14:1 cis-9).
8C16:1 cis-9/(C16:0 + C16:1 cis-9).
9C18:1 cis-9/(C18:0 + C18:1 cis-9).
10 CLA cis-9, trans-11/(C18:1 trans-11+ CLA cis-9, trans-11).
The estimates of the hg 2 are based on a univariate model.