Table 1.
Concentrate ingredients and chemical and fatty acid composition of the concentrates and pasture offered.
| Items | Pasture Herbage | Concentrate Feed 2 | |||
|---|---|---|---|---|---|
| MP 1 1 | MP 2 | SA | SO | LO | |
| Ingredients (%, as fed) | - | - | 28.5 | 28.5 | 28.5 |
| Barley | - | - | 25.0 | 25.0 | 25.0 |
| Citrus pulp | - | - | 20.4 | 20.4 | 20.4 |
| Soy bean meal | - | - | 16.0 | - | - |
| Stearic acid | - | - | - | - | 16.0 |
| Linseed oil | - | - | - | 16.0 | - |
| Soy oil | - | - | 6.0 | 6.0 | 6.0 |
| Cane molasses | - | - | 4.1 | 4.1 | 4.1 |
| Minerals and vitamins | - | - | 28.5 | 28.5 | 28.5 |
| Chemical composition (% of DM 3, unless stated) | |||||
| DM (% as fed) | 22.2 | 17.2 | 88.6 | 88.5 | 89.6 |
| OM | 92.3 | 91.4 | 91.9 | 91.5 | 92.7 |
| CP | 11.5 | 16.7 | 16.6 | 16.4 | 15.9 |
| NDF | 50.2 | 55.0 | 22.9 | 22.6 | 22.5 |
| ADF | 27.0 | 28.7 | 10.1 | 11.7 | 10.5 |
| ADL | 2.3 | 2.5 | 1.6 | 2.7 | 2.5 |
| WSC (% as fed) | 4.7 | 2.5 | - | - | - |
| Ether extract | 2.6 | 3.1 | 1.4 | 1.3 | 1.8 |
| Gross energy (MJ/kg DM) | 18.4 | 18.7 | 19.9 | 18.6 | 20.3 |
| Fatty Acids (% of total fatty acids) | |||||
| Tetradecanoic (C14:0) | 1.8 | 2.0 | 0.2 | 0.3 | 0.1 |
| Hexadecanoic (C16:0) | 19.2 | 18.3 | 6.5 | 12.5 | 7.5 |
| c/t-9-Hexadecanoic (C16:1) | 1.8 | 2.4 | 0 | 0 | 0 |
| Octadecanoic (C18:0) | 0.5 | 0.5 | 80.4 | 2.8 | 3.7 |
| c/t-9-Octadecanoic (C18:1) | 1.2 | 1.0 | 1.6 | 23.5 | 22.1 |
| c-9,12-Octadecanoic (C18:2) | 9.7 | 10.7 | 6.9 | 52.9 | 22.1 |
| Octadecatrienoic (C18:3) | 34.8 | 44.1 | 2.7 | 5.2 | 42.4 |
| Others | 31.0 | 21.0 | 1.7 | 2.8 | 2.1 |
1 MP = measurement period, MP 1 corresponds to 17 to 22 d post treatment introduction and MP 2 corresponds to 44 to 49 d after treatment introduction; 2 SA = supplementary concentrate containing 16% FW stearic acid; SO = supplementary concentrate containing 16% FW soy oil; LO = supplementary concentrate containing 16% FW linseed oil; 3 DM = dry matter; OM = organic matter; CP = crude protein; NDF = neutral detergent fiber; ADF = acid detergent fiber; ADL = acid detergent lignin; WSC = water soluble carbohydrates.