Table 3.
Ingredient and nutrient composition of experimental diets (as-fed) fed during days 15 to 28 (phase 2)
| Ingredient | Control | 1% | 5% | 10% | 20% |
|---|---|---|---|---|---|
| Microalgae extract | 0.00 | 1.00 | 5.00 | 10.00 | 20.00 |
| Corn | 45.33 | 44.62 | 40.16 | 34.14 | 22.06 |
| Soybean meal, 47.5% CP | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 |
| Whey, Dried | 3.75 | 3.75 | 3.75 | 3.75 | 3.75 |
| Soy Protein Concentrate | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 |
| Lactose | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 |
| Fish Meal, menhaden | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 |
| Soybean Oil | 0.00 | 0.00 | 0.65 | 1.64 | 3.65 |
| L-Lysine HCl | 0.13 | 0.13 | 0.14 | 0.15 | 0.18 |
| DL-Methionine | 0.06 | 0.07 | 0.07 | 0.09 | 0.11 |
| Monocalcium phosphate | 1.00 | 1.00 | 1.00 | 1.00 | 1.06 |
| Limestone | 1.32 | 1.04 | 0.84 | 0.83 | 0.80 |
| Salt | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Vitamin and trace mineral premix* | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Total | 100 | 100 | 100 | 100 | 100 |
| Calculated nutrient composition | |||||
| ME, kcal/kg | 3,300 | 3,300 | 3,300 | 3,300 | 3,300 |
| CP, % | 23.41 | 23.41 | 23.27 | 23.07 | 22.65 |
| NDF, % | 7.47 | 7.78 | 8.86 | 10.18 | 12.80 |
| Ether extract, % | 3.09 | 3.13 | 3.91 | 5.05 | 7.33 |
| Linoleic acid, % | 1.08 | 1.07 | 1.32 | 1.72 | 2.52 |
| P % (total) | 0.69 | 0.69 | 0.69 | 0.69 | 0.71 |
| P % (STTD)† | 0.37 | 0.37 | 0.36 | 0.36 | 0.36 |
| Ca% (total) | 0.97 | 0.86 | 0.78 | 0.78 | 0.78 |
| Ca:P | 1.41 | 1.25 | 1.13 | 1.13 | 1.10 |
| Total Lys % | 1.49 | 1.49 | 1.49 | 1.48 | 1.48 |
| Lactose | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 |
| Standardized ileal digestible | |||||
| Lys % | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 |
| Lys:ME (g/Mcal/kg) | 4.10 | 4.10 | 4.10 | 4.10 | 4.10 |
| Met/Cys % | 0.74 | 0.74 | 0.74 | 0.74 | 0.74 |
| Thr % | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 |
| Trp % | 0.26 | 0.26 | 0.26 | 0.26 | 0.26 |
| Analyzed composition | |||||
| GE, kcal/kg | 3,916 | 3,831 | 3,955 | 4,005 | 4,171 |
| CP, % | 22.25 | 25.59 | 21.14 | 23.10 | 22.00 |
| Ether extract, % | 1.87 | 2.10 | 4.04 | 4.20 | 6.70 |
| Ash, % | 7.86 | 5.41 | 5.77 | 5.66 | 6.83 |
| Moisture, % | 10.40 | 11.38 | 9.54 | 9.46 | 7.68 |
*Premix supplied the following nutrients per kilogram of diet: 11,023 IU of vitamin A as retinyl acetate; 2,756 IU of vitamin D3; 22 IU of vitamin E as dl-alpha tocopheryl acetate; 4.41 mg of vitamin K as menadione dimethylpyrimidinol bisulfite; 9.92 mg of riboflavin; 55.11 mg of niacin; 33.07 mg of pantothenic acid as d-calcium pantothenate; 992 mg of choline as choline chloride; 0.06 mg of vitamin B12; 14.3 mg of pyridoxine; 1.65 mg of folic acid; 2.20 mg of thiamine; 0.33 mg of biotin; 2.20 mg of iodine as ethylenediamine dihydroiodide; 0.30 mg of selenium as sodium selenite; 299 mg of zinc as zinc sulfate; 299 mg of iron as ferrous sulfate; 19.8 mg of copper as copper sulfate; and 17.6 mg of manganese as manganese oxide.
†Standardized total tract digestibility.