Table 1 Chemical, fatty acid and antioxidant composition of dietary treatments
| Â | Levels of CPOBa (% ) | SE | P value | ||
|---|---|---|---|---|---|
Chemical composition, g/kg DM | 0 | 4 | 8 | Â | Â |
 Dry matter | 676.96 | 678.99 | 680.73 | 32.00 | 0.56 |
 Crude Protein | 142.72 | 143.73 | 143.92 | 14.23 | 0.11 |
 Ether extract | 23.00 | 63.50 | 111.10 | 2.19 | 0.01 |
 Ash | 68.40 | 65.80 | 62.60 | 4.11 | 0.17 |
 Organic matter | 931.60 | 934.20 | 935.50 | 44.22 | 0.65 |
 Nitrogen free extract | 165.56 | 139.67 | 124.51 | 15.06 | 0.17 |
 Acid detergent fibre | 350.40 | 332.80 | 325.20 | 18.99 | 0.26 |
 Neutral detergent fibre | 635.24 | 626.72 | 620.60 | 27.12 | 0.80 |
 Metabolizable energy, MJ/Kg DM | 11.59 | 11.61 | 11.62 | 0.78 | 0.10 |
 Ca % | 1.02 | 1.05 | 1.04 | 0.02 | 0.18 |
 P % | 0.52 | 0.54 | 0.54 | 0.01 | 0.12 |
Fatty acid (g/100Â g total FA) | Â | ||||
 C12:0 | 0.07 | 0.07 | 0.08 | 0.01 | 0.45 |
 C14:0 | 3.35 | 1.38 | 0.99 | 0.05 | 0.04 |
 C16:0 | 17.64 | 16.14 | 14.90 | 1.89 | 0.14 |
 C16:1 | 0.52 | 0.31 | 0.29 | 0.01 | 0.13 |
 C18:0 | 3.52 | 3.00 | 2.73 | 0.02 | 0.23 |
 C18:1n-9 | 24.17 | 40.06 | 50.37 | 4.19 | 0.01 |
 C18:2n-6 | 44.57 | 32.00 | 23.03 | 3.20 | 0.02 |
 C18:3n-3 | 6.70 | 7.04 | 7.90 | 0.12 | 0.15 |
 ∑SFA | 24.52 | 21.00 | 18.70 | 1.15 | 0.36 |
 ∑UFA | 75.48 | 79.00 | 81.30 | 8.23 | 0.03 |
 n-6:n-3 | 6.66 | 4.54 | 2.92 | 0.66 | 0.01 |
Total FA (g/kg DM) | 15.83 | 37.09 | 52.27 | 2.03 | 0.01 |
 Antioxidants |  | ||||
 Total carotenoid (mg/kg) | 14.81 | 16.71 | 19.86 | 1.92 | 0.02 |
 α-tocopherol (mg/kg) | 101.12 | 112.47 | 123.21 | 7.81 | 0.01 |
 γ-tocopherol (mg/kg) | 10.22 | 34.55 | 49.17 | 4.50 | 0.01 |
 δ-tocopherol (mg/kg) | 1.21 | 3.45 | 5.93 | 0.04 | 0.02 |