Table 3.
Chemical and fatty acid composition (%) of goat milk *.
| Item | Diet 1 | SEM 2 | p-Value | ||
|---|---|---|---|---|---|
| C | L | L + O | |||
| Dry matter | 11.67 A | 11.00 B | 10.09 B | 0.336 | 0.005 |
| Protein | 3.57 | 3.50 | 3.57 | 0.116 | 0.376 |
| Fat | 2.66 | 2.55 | 1.95 | 0.325 | 0.143 |
| Ash | 0.77 | 0.78 | 0.78 | 0.0.12 | 0.829 |
| Lactose | 4.67 | 4.17 | 3.78 | 0.350 | 0.057 |
| C4:0 | 0.78 B | 1.15 A | 1.11 A | 0.082 | 0.007 |
| C6:0 | 1.12 b | 1.58 a | 1.40 a | 1.114 | 0.014 |
| C8:0 | 1.80 | 2.25 | 2.02 | 0.166 | 0.354 |
| SCFA 3 | 3.70 | 4.98 | 4.53 | 0.076 | 0.214 |
| C10:0 (capric) | 8.20 | 8.35 | 8.51 | 0.882 | 0.526 |
| C11:0 | 0.06 | 0.08 | 0.06 | 0.014 | 0.192 |
| C12:0 (lauric) | 3.59 | 3.55 | 3.32 | 0.286 | 0.503 |
| C13:0 | 0.08 | 0.09 | 0.08 | 0.011 | 0.294 |
| C14:0 (myristic) | 9.38 | 8.87 | 9.13 | 0.431 | 0.429 |
| C15:0 | 1.07 | 0.88 | 0.96 | 0.139 | 0.370 |
| C16:0 (palmitic) | 25.19 | 24.93 | 24.28 | 0.716 | 0.136 |
| C17:0 | 0.64 | 0.60 | 0.66 | 0.049 | 0.370 |
| MCFA 4 | 48.21 | 48.35 | 46.00 | 0.074 | 0.163 |
| C18:0 (stearic) | 12.31 a | 11.10 b | 11.87 b | 0.793 | 0.0296 |
| C20:0 | 0.46 b | 0.69 a | 0.78 a, b | 0.057 | 0.016 |
| C21:0 | 0.18 a, b | 0.19 a | 0.14 b | 0.013 | 0.023 |
| LCFA 5 | 12.95 | 10.98 | 13.79 | 0.742 | 0.087 |
| ∑ SFA 6 | 64.86 | 64.37 | 64.40 | 1.837 | 0.812 |
| C14:1 | 0.35 a, b | 0.23 b | 0.42 a | 0.057 | 0.035 |
| C15:1 | 0.29 a | 0.22 b | 0.28 a | 0.019 | 0.040 |
| C16:1 trans (palmitoleic) | 0.27 | 0.26 | 0.24 | 0.022 | 0.347 |
| C16:1 cis | 0.40 | 0.41 | 0.32 | 0.056 | 0.333 |
| C17:1 | 0.16 | 0.16 | 0.20 | 0.022 | 0.282 |
| C18:1 n9 (oleic) | 23.55 | 23.51 | 23.63 | 1.392 | 0.747 |
| C20:1 n9 | 0.15 a | 0.12 a, b | 0.06 b | 0.03 | 0.046 |
| ∑ MUFA 7 | 25.17 | 24.91 | 25.16 | 1.433 | 0.902 |
| C18:2 n6 (linoleic) | 3.78 | 3.96 | 3.23 | 0.326 | 0.177 |
| C18:2 trans10,cis12 | 0.05 | 0.08 | 0.09 | 0.007 | 0.060 |
| C18:2 cis9,trans11 | 0.10 | 0.12 | 0.13 | 0.012 | 0.664 |
| Total Conjugated Linoleic Acid (CLA) | 0.15 b | 0.20 a | 0.22 a | 0.060 | 0.050 |
| C18:3 n6 (γ-linolenic) | 0.51 | 0.72 | 0.66 | 0.090 | 0.147 |
| C18:3 n3 (α-linolenic) | 0.04 B | 0.10 A | 0.10 A | 0.008 | 0.001 |
| C20:2 n6 | 0.07 | 0.07 | 0.18 | 0.069 | 0.247 |
| C20:3 n6 | 0.04 | 0.04 | 0.04 | 0.002 | 0.055 |
| ∑ PUFA 8 | 4.44 | 4.59 | 4.22 | 0.356 | 0.493 |
| ∑ UFA 9 | 29.61 | 29.48 | 29.46 | 1.683 | 0.945 |
* Results are reported as least square means; 1 C, control feed; L, feed containing 3% extruded linseed; L + O, feed containing 3% extruded linseed + 0,6% oregano; 2 SEM: Standard error of means; 3 SCFA: Short Chain Fatty Acids; 4 MCFA: Medium Chain Fatty Acids; 5 LCFA: Long Chain Fatty Acids; 6 SFA: Saturated Fatty Acids (sum of C4:0 + C6:0 + C8:0 + C10:0 + C12:0 + C13:0 + C14:0 + C15:0 + C16:0 + C17:0 + C18:0 + C20:0 + C21:0); 7 MUFA: Mono Unsaturated Fatty Acids (sum of C14:1 + C15:1 + C16:1 c + C16:1 t + C17:1 + C18:1 n9 + C20:1 n9); 8 PUFA: Poly Unsaturated Fatty Acids (sum of C18:2 n6 + C18:2 c12;t10 + C18:2 c9;t11 + C18:3 n6 + C18:3 n3 + C20:2 n6 + C20:3 n6); 9 UFA: Unsaturated Fatty Acids (sum of MUFA + PUFA). Means with different letters within each row significantly differ: a, b: p < 0.05; A, B: p < 0.01.