Table 1.
Ingredients and chemical composition of experimental diets.
| Diets | ||||
|---|---|---|---|---|
| Control | Cottonseed | Soybean | Sunflower | |
| Ingredients | g/kg DM | |||
| Corn silage | 400.0 | 400.0 | 400.0 | 400.0 |
| Corn | 410.8 | 259.1 | 339.2 | 180.7 |
| Soybean meal | 174.2 | 73.5 | 0.0 | 135.5 |
| Oilseed grains | – | 252.3 | 242.2 | 268.8 |
| Soybean oil | – | – | 3.6 | – |
| Mineral premix* | 15.0 | 15.0 | 15.0 | 15.0 |
| Chemical composition (g/kg DM) | ||||
| Dry matter (g/kg) | 508.9 | 511.1 | 511.0 | 510.7 |
| Organic matter | 946.9 | 944.8 | 946.9 | 939.6 |
| Crude Protein | 150.0 | 150.0 | 150.0 | 150.0 |
| Neutral detergent fiber | 302.8 | 381.5 | 314.1 | 345.3 |
| Ether extract | 24.7 | 70.0 | 70.0 | 70.0 |
| Fatty Acids**(g/kg DM) | ||||
| C14:0 | 0.2 | 0.6 | 0.3 | 0.1 |
| C16:0 | 3.6 | 13.5 | 8.5 | 4.9 |
| C16:1n−7 | 0.2 | 0.5 | 0.3 | 0.2 |
| C18:0 | 1.3 | 3.4 | 3.6 | 3.2 |
| C18:1n−9 | 6.5 | 13.2 | 15.0 | 16.7 |
| C18:2n−6 | 9.1 | 32.6 | 31.5 | 39.4 |
| C18:3n−3 | 0.1 | 0.9 | 3.5 | 0.6 |
| Others | 2.7 | 2.2 | 4.1 | 1.8 |
| ∑ Saturated | 5.1 | 17.5 | 12.5 | 8.2 |
| ∑ Unsaturated | 15.9 | 47.3 | 50.3 | 56.9 |
DM, Dry matter.
*Composition: sodium 100 g/kg; phosphor 88 g/kg; calcium 176 g/kg; magnesium 8,000 mg/kg; sulfur 22 g/kg; zinc 3,000 mg/kg; copper 1,000 mg/kg; cobalt 80 mg/kg; iodine 60 mg/kg; selenium 20 mg/kg; fluorine 880 mg/kg.
**Values calculated from compilation of literature data (16–19) and Brazilian Cattle Feed Composition Table (20).