Table 2.
Ingredient and nutrient composition (calculated and analyzed) of starter, grower, and finisher basal diets for Cobb-500 male broilers1.
| Ingredient | Starter (1–14 D) | Grower (15–28 D) | Finisher (29–42 D) | |||
|---|---|---|---|---|---|---|
| ------------------%------------------ | ||||||
| Corn2 | 50.88 | 59.79 | 63.28 | |||
| Soybean meal, 46% | 34.50 | 29.75 | 25.97 | |||
| Corn DDGS | 5.75 | 2.00 | 2.00 | |||
| Poultry fat | 4.25 | 4.66 | 5.17 | |||
| Limestone fine | 1.42 | 1.14 | 1.05 | |||
| Dicalcium phosphate, 18.5% | 1.05 | 0.96 | 0.66 | |||
| DL-Methionine, 99% | 0.35 | 0.30 | 0.27 | |||
| Titanium dioxide3 | 0.30 | - | 0.30 | |||
| Sand or amylase4 | 0.0266 | 0.0266 | 0.0266 | |||
| Salt (NaCl) | 0.30 | 0.33 | 0.28 | |||
| L-Lysine-HCl, 78.8% | 0.29 | 0.23 | 0.22 | |||
| Sodium bicarbonate | 0.21 | 0.15 | 0.18 | |||
| Mineral premix5 | 0.20 | 0.20 | 0.20 | |||
| Choline chloride, 60% | 0.18 | 0.18 | 0.18 | |||
| L-Threonine, 98% | 0.15 | 0.10 | 0.08 | |||
| Vitamin premix6 | 0.10 | 0.10 | 0.10 | |||
| Coccidiostat7 | 0.05 | 0.05 | - | |||
| Phytase8 | 0.02 | 0.02 | 0.02 | |||
| Total | 100.00 | 100.00 | 100.00 | |||
| Calculated nutrient composition | ||||||
| Calcium, % | 0.96 | 0.88 | 0.78 | |||
| Nonphytate phosphorous, % | 0.48 | 0.44 | 0.39 | |||
| Digestible lysine, % | 1.28 | 1.09 | 0.99 | |||
| Digestible total sulfur amino acids, % | 0.95 | 0.84 | 0.78 | |||
| Digestible threonine, % | 0.86 | 0.73 | 0.66 | |||
| Digestible tryptophan, % | 0.24 | 0.21 | 0.19 | |||
| Digestible valine, % | 0.98 | 0.83 | 0.76 | |||
| Digestible arginine, % | 1.35 | 1.20 | 1.09 | |||
| Sodium, % | 0.20 | 0.19 | 0.18 | |||
| Potassium, % | 0.94 | 0.84 | 0.78 | |||
| Chloride, % | 0.28 | 0.29 | 0.26 | |||
| Dietary electrolyte balance, mEq/100 g | 267 | 233 | 221 | |||
| Analyzed nutrient content9 | 35°C | 120°C | 35°C | 120°C | 35°C | 120°C |
| DM, % | 88.04 | 88.40 | 86.86 | 87.23 | 87.99 | 88.46 |
| Crude protein, % | 22.69 | 23.16 | 21.38 | 20.99 | 18.79 | 19.17 |
| Total lysine, % | 1.30 | 1.36 | 1.18 | 1.19 | 1.10 | 1.10 |
| Total sulfur amino acids, % | 1.02 | 1.04 | 0.91 | 0.88 | 0.83 | 0.85 |
| Total threonine, % | 0.96 | 0.98 | 0.86 | 0.84 | 0.75 | 0.77 |
| Total valine, % | 1.03 | 1.06 | 1.00 | 0.97 | 0.85 | 0.86 |
| Total arginine, % | 1.47 | 1.49 | 1.42 | 1.37 | 1.20 | 1.21 |
Abbreviation: DDGS, distillers dried grains with solubles.
Starter diet was used for both experiments conducted in parallel.
Corn was added and mixed in the same inclusion level for all dietary treatments according to its phase. All other ingredients were mixed in a basal diet devoid of corn.
Insoluble marker (Titanium dioxide, Venator, Hombitan AFDC101, CAS 13463-67-7, Duisburg, Germany).
Either sand or amylase (Ronozyme HiStarch CT, batch ID: AU360086), 133g ton-1 were included according to each dietary treatment to supply 80 kilo-Novo alpha amylase units (KNU). Depending on treatments, the inclusion of amylase and sand were 266 g ton-1 of sand; 133 g ton-1 sand +133 g ton-1 amylase; and 266 g ton-1 of amylase.
Trace minerals provided per kg of premix: manganese (Mn SO4), 60 g; zinc (ZnSO4), 60 g; iron (FeSO4), 40 g; copper (CuSO4), 5 g; iodine (Ca(IO3)2), 1.25 g.
Vitamins provided per kg of premix: vitamin A, 13,227,513 IU; vitamin D3, 3,968,253 IU; vitamin E, 66,137 IU; vitamin B12, 39.6 mg; riboflavin, 13,227 mg; niacin, 110,229 mg; d-pantothenic acid, 22,045 mg; menadione, 3,968 mg; folic acid, 2,204 mg; vitamin B6, 7,936 mg; thiamine, 3,968 mg; biotin, 253.5 mg.
Coban 90 (Monensin), Elanco Animal Health, Greenfield, IN, at 500 g ton-1 in the starter and grower diets.
Ronozyme HiPhos GT, 200 g ton-1 to supply 1,000 FYT (Novozymes) delivering 0.14% of available P, and 0.10% of calcium.
Analyzed values in each column are means of 12 samples per feeding phase. 2 samples per each experimental diet were analyzed in duplicate. Evonik Industries, Evonik Degussa GmbH, Hanau-Wolfgang, Germany.