Table 1.
Ingredient composition and calculated content (g/kg, unless otherwise stated) of experimental diets fed to broiler chickens from day 1 to 30 after hatching.
| Ingredients %, as is | Starter diets1 |
Grower diets1 |
||||||
|---|---|---|---|---|---|---|---|---|
| Control | CJ10 | CJ20 | CJ30 | Control | CJ10 | CJ20 | CJ30 | |
| Wheat | 52.8 | 53.6 | 54.5 | 55.3 | 62.5 | 63.1 | 63.7 | 64.3 |
| Oats | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 |
| Cyberlindnera jadinii2 | 0.0 | 4.9 | 9.8 | 14.7 | 0.0 | 4.2 | 8.3 | 12.5 |
| Soybean meal | 15.3 | 10.2 | 5.1 | 0.0 | 12.6 | 8.4 | 4.2 | 0.0 |
| Fish meal | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Rapeseed meal | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Potato protein concentrate3 | 5.0 | 5.0 | 5.0 | 5.0 | 3.0 | 3.0 | 3.0 | 3.0 |
| Maize gluten meal | 5.0 | 5.0 | 5.0 | 5.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Soy oil | 4.3 | 3.6 | 3.0 | 2.3 | 2.5 | 2.0 | 1.5 | 1.0 |
| Vitamin and trace mineral mix4 | 0.64 | 0.63 | 0.63 | 0.63 | 0.62 | 0.63 | 0.63 | 0.63 |
| Limestone meal | 0.95 | 0.95 | 0.92 | 0.91 | 0.8 | 0.79 | 0.78 | 0.77 |
| Monocalcium phosphate | 0.67 | 0.78 | 0.88 | 0.99 | 0.46 | 0.55 | 0.63 | 0.72 |
| Sodium bicarbonate | 0.41 | 0.33 | 0.24 | 0.16 | 0.4 | 0.31 | 0.23 | 0.14 |
| Sodium chloride | 0.01 | 0.01 | 0.00 | 0.00 | 0.06 | 0.06 | 0.06 | 0.06 |
| L-Lysine | 0.38 | 0.33 | 0.29 | 0.25 | 0.38 | 0.34 | 0.3 | 0.26 |
| L-Methionine | 0.26 | 0.28 | 0.29 | 0.30 | 0.27 | 0.28 | 0.29 | 0.3 |
| L-Arginine | 0.15 | 0.20 | 0.24 | 0.28 | 0.16 | 0.19 | 0.23 | 0.26 |
| L-Threonine | 0.12 | 0.10 | 0.08 | 0.07 | 0.15 | 0.13 | 0.11 | 0.09 |
| L-Tryptophan | 0.02 | 0.00 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Enzymes | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 |
| Titanium dioxide (TiO2) | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 |
| Calculated content | ||||||||
| Metabolizable energy5 | 2,892 | 2,892 | 2,892 | 2,892 | 2,820 | 2,820 | 2,820 | 2,820 |
| Crude protein | 23.5 | 23.5 | 23.5 | 23.5 | 20.0 | 20.0 | 20.0 | 20.0 |
| Crude fat | 59.4 | 57.4 | 55.5 | 53.5 | 42.5 | 39.2 | 35.8 | 32.5 |
| CP from C. jadinii | 0.0 | 10.0 | 20.0 | 30.0 | 0.0 | 10.0 | 20.0 | 30.0 |
| Amino acids (%) | ||||||||
| Lysine | 1.41 | 1.42 | 1.43 | 1.44 | 1.22 | 1.23 | 1.23 | 1.24 |
| Methionine | 0.68 | 0.69 | 0.71 | 0.72 | 0.60 | 0.61 | 0.62 | 0.63 |
| Cysteine | 0.37 | 0.36 | 0.34 | 0.32 | 0.37 | 0.32 | 0.30 | 0.29 |
| Threonine | 0.95 | 0.95 | 0.95 | 0.96 | 0.83 | 0.83 | 0.83 | 0.83 |
| Tryptophan | 0.27 | 0.27 | 0.27 | 0.27 | 0.24 | 0.24 | 0.24 | 0.24 |
| Arginine | 1.45 | 1.46 | 1.46 | 1.47 | 1.27 | 1.27 | 1.27 | 1.27 |
Control diet (control); diets with 10, 20, and 30% crude protein (CP) from C. jadinii (CJ10, CJ20, and CJ30, respectively).
Dried inactivated C. jadinii (%): DM = 97.0, CP = 47.0, crude fat = 1.6, ash = 7.8, gross energy = 4,756 kcal/kg; essential amino acid content in grams per 16 g N: Arg = 24.4, His = 8.5, Ile = 21.6, Leu = 31.6, Lys = 30.6, Met = 5.2, Phe = 18.4, Thr = 25.6, Val = 25.9, Trp = 6.2.
Cargil, Denmark.
Vitamin–trace mineral premix, provided per 1 kg of diet: vitamin A = 9,600 IU; dl-α-tocopheryl acetate = 100 mg; cholecalciferol = 5,000 IU; menadione = 6 mg; thiamin = 3.9 mg; riboflavin = 7.4 mg; pantothenic acid = 59 mg; niacin = 20 mg; pyridoxine = 12 mg; biotin = 0.4 mg; cyanocobalamin = 20 μg; betaine = 1.1 g; selenium = 0.29 mg; Fe (FeSO4) = 67 mg; Mn (MnO) = 127 mg; Zn (ZnO) = 60 mg; Cu(CuSO4) = 11 mg; I (Ca [IO3]) = 1.28 mg.
Apparent metabolizable energy, values in kilocalorie per kilogram, calculated based on Centraal Veevoederbureau (2005).