Table 3.
Diet composition and nutrient content for each trial included in the meta-analysis
| Experiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Density1 | Low | High | Low | High | Low | High | |||||
| Composition, % | |||||||||||
| Wheat | 10.0 | 25.0 | 50.2 | 53.2 | 47.4 | 42.0 | 25.0 | 42.3 | 36.4 | ||
| Barley | 30.2 | 27.0 | 21.0 | 7.0 | 15.0 | 35.8 | 42.3 | 36.4 | |||
| Corn | 54.7 | 53.1 | 50.3 | ||||||||
| Oat | 4.9 | ||||||||||
| Wheat middling | 5.0 | 8.0 | 10.0 | ||||||||
| Wheat bran | 4.1 | 3.6 | 5.0 | ||||||||
| Peas | 15.0 | 5.0 | 5.0 | ||||||||
| Flaxseed | 5.0 | ||||||||||
| Sunflower seed | 7.7 | 8.5 | |||||||||
| Soybean meal | 25.3 | 18.7 | 14.0 | 15.0 | 29.0 | 29.8 | 10.7 | 10.8 | 25.4 | 12.3 | 18.6 |
| Palm meal expeller | 4.0 | ||||||||||
| Soybean by-product | 2.9 | 3.6 | |||||||||
| Sugar beet pulp | 4.9 | ||||||||||
| Sugar | 5.0 | 5.0 | |||||||||
| Animal fat white grease | 5.8 | ||||||||||
| Vegetable oil | 0.7 | 1.9 | 0.0 | 2.0 | 4.9 | 6.0 | 1.2 | 0.8 | 0.0 | 6.0 | |
| Dicalcium phosphate | 1.0 | 1.6 | 1.2 | 1.2 | 0.4 | 0.4 | 1.1 | 0.8 | 0.8 | ||
| Calcium carbonate | 2.0 | 0.8 | 0.8 | 0.8 | 1.2 | 1.2 | 0.9 | 1.2 | 1.2 | ||
| Salt | 0.5 | 0.6 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 | ||||
| Lysine | 0.2 | 0.1 | 0.3 | 0.3 | 0.4 | 0.3 | 0.1 | 0.3 | 0.1 | ||
| Methionine | 0.1 | 0.1 | |||||||||
| Threonine | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||||||
| Premix | 0.4 | 1.1 | 1.0 | 1.0 | 5.3 | 5.3 | 2.0 | 3.4 | 0.4 | 0.2 | 0.2 |
| Total | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Calculated nutrient content, % as fed | |||||||||||
| DM | 87.4 | 87.9 | 87.5 | 87.8 | 88.4 | 88.6 | 88.4 | 88.5 | 88.2 | 87.3 | 88.1 |
| CP | 17.9 | 18.4 | 15.8 | 15.9 | 17.8 | 18.1 | 15.0 | 15.2 | 18.6 | 14.7 | 16.2 |
| Crude fat | 3.5 | 5.3 | 1.5 | 3.5 | 7.5 | 8.5 | 6.4 | 6.5 | 7.5 | 1.6 | 7.2 |
| Crude fiber | 3.3 | 4.2 | 3.4 | 3.3 | 3.8 | 4.1 | 5.6 | 5.3 | 4.2 | 3.6 | 3.6 |
| NDF | 11.6 | 13.8 | 13.6 | 13.0 | 10.6 | 10.9 | 18.4 | 19.0 | 14.9 | 14.7 | 13.6 |
| ADF | 4.0 | 5.0 | 4.3 | 4.2 | 4.6 | 4.9 | 7.0 | 7.5 | 5.2 | 4.5 | 4.5 |
| NE, MJ/kg | 10.20 | 10.10 | 9.74 | 10.16 | 10.81 | 10.95 | 9.68 | 9.76 | 10.44 | 9.76 | 10.77 |
| Digestible lysine | 0.90 | 0.90 | 0.85 | 0.87 | 0.84 | 0.86 | 0.84 | 0.76 | 0.90 | 0.77 | 0.74 |
1Density refers to NE content and digestible lysine content.