Table 1.
Ingredients, chemical compositions and fatty acid percentage of feeds.
| Item | Pellet Feed 1 | Lucerne Hay | ||||
|---|---|---|---|---|---|---|
| Control | 2.5C | 5C | 2.5F | 5F | ||
| Ingredients (g/kg) | ||||||
| Wheat | 513 | 537 | 545 | 551 | 465 | ‒ |
| Paddy rice | 260 | 230 | 210 | 220 | 280 | ‒ |
| Lupins | 170 | 151 | 138 | 147 | 148 | ‒ |
| Canola oil (mL/kg) | - | 25 | 50 | - | - | ‒ |
| Flaxseed oil (mL/kg) | - | - | - | 25 | 50 | ‒ |
| Salt | 10 | 10 | 10 | 10 | 10 | ‒ |
| Limestone | 21 | 21 | 21 | 21 | 21 | ‒ |
| Sheep premix | 1 | 1 | 1 | 1 | 1 | ‒ |
| Ammonium sulfate | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | ‒ |
| Acid buff | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | ‒ |
| Sodium bicarbonate | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | ‒ |
| Chemical compositions (% dry matter) 2 | ||||||
| Dry matter, (%) | 89.8 | 90.2 | 87.9 | 90.5 | 89.4 | 89.6 |
| Crude protein | 14.7 | 14.5 | 14.4 | 14.5 | 14.5 | 17.4 |
| NDF | 23.8 | 23.5 | 23.9 | 23.7 | 23.3 | 46.5 |
| ADF | 9.2 | 9.3 | 8.9 | 9.5 | 9.0 | 30.9 |
| NFC | 50.5 | 49.9 | 47.8 | 50.5 | 50.7 | 27.4 |
| Ether extract | 3.0 | 4.6 | 5.7 | 4.2 | 5.1 | 2.4 |
| Ash | 8.0 | 7.5 | 8.2 | 7.1 | 6.4 | 7.2 |
| ME (MJ/kgDM) | 10.7 | 10.9 | 11.1 | 10.8 | 11.1 | 9.8 |
| Fatty acid percentage (g/100 g total FA) 3 | ||||||
| 14:0 | 0.2 | 0.5 | 0.6 | 0.2 | 0.2 | 0.6 |
| 15:0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.4 |
| 16:0 | 18.2 | 16.9 | 16.5 | 19.1 | 19.8 | 29.6 |
| 17:0 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.7 |
| 18:2n-6 | 43.4 | 28.4 | 26.7 | 25.6 | 24.7 | 19.1 |
| 18:3n-3 | 3.5 | 3.6 | 4.3 | 4.9 | 7.2 | 18.8 |
| 18:1n-9 | 23.9 | 38.9 | 37.5 | 32.3 | 34.1 | 5.6 |
| 18:0 | 3.4 | 4.1 | 4.1 | 4.4 | 5.1 | 4.7 |
| 20:3n-6 | 0.3 | 0.4 | 0.4 | 0.4 | 0.5 | 0.4 |
| 20:4n-3 | 0.4 | 0.5 | 0.2 | 0.5 | 0.6 | 0.5 |
| 20:2n-6 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 |
| 20:0 | 0.5 | 0.8 | 0.7 | 0.7 | 0.8 | 1.5 |
| ∑SFA | 24.1 | 23.0 | 25.0 | 26.7 | 28.7 | 47.3 |
| ∑MUFA | 27.5 | 42.6 | 43.3 | 36.3 | 37.5 | 12.7 |
| ∑PUFA | 48.4 | 34.4 | 31.7 | 37.0 | 33.8 | 40.0 |
| PUFA/SFA | 2.0 | 1.5 | 1.3 | 1.4 | 1.2 | 0.9 |
| ∑n-3 PUFA | 3.9 | 4.1 | 4.8 | 5.5 | 7.9 | 20.5 |
| ∑n-6 PUFA | 43.8 | 28.8 | 27.4 | 26 | 25.3 | 19.4 |
| n-6/n-3 | 11.1 | 7.0 | 5.7 | 4.7 | 3.2 | 0.9 |
1 2.5C: 2.5% canola oil; 5C: 5% canola oil; 2.5F: 2.5% flaxseed oil; 5F: 5% flaxseed oil; ADF: acid detergent fibre; MJ: mega joules; DM: dry matter. 2 NFC: non-fibrous carbohydrates (NFC = 100 − (crude protein (CP) + neutral detergent fibre (NDF) +ether extract (EE) + ash)); ME: metabolisable energy. 3 ∑SFA: total saturated fatty acid includes: 14:0, 15:0, 16:0, 17:0, 18:0, 20:0, 21:0, 22:0, 23:0, 24:0; ∑MUFA: total monounsaturated fatty acid includes: 14:1, 16:1n-9, 16:1n-7, 16:1n-5, 16:1n-13, 17:1n-8 + a17:0, 17:1, 18:1n-9, 18:1n-7, 18:1, 19:1, 20:1n-11, 20:1n-9, 20:1n-7, 20:1n-5, 22:1n-9, 22:1n-11, 22:1n-9, 24:1n-9; ∑PUFA: total polyunsaturated fatty acid includes: 18:3n-6, 18:2n-6, 18:3n-3, 20:4n-3, 20:4n-6, 20:5n-3, 20:3n-6, 20:2n-6, 22:5n-6, 22:6n-3, 22:5n-3, 22:4n-6, 24:6n-3, 24:5n-3; ∑n-3 PUFA: total omega–3 PUFA includes 18:3n-3, 20:5n-3, 20:4n-3, 22:6n-3, 22:5n-3; ∑n-6 PUFA: total omega–6 PUFA includes 18:3n-6, 18:2n-6, 20:4n-6, 20:3n-6, 20:2n-6, 22:5n-6, 22:4n-6.