Table 2.
Ingredients and nutrient composition of the experimental diets.
| Ingredients, % | Experiment 1 |
Experiment 2 |
||||
|---|---|---|---|---|---|---|
| Prestarter feed1 |
Starter feed2 |
Prestarter feed3 |
||||
| IM | AACM | IM | AACM | IM | AACM | |
| Corn | 58.35 | 58.35 | 63.46 | 63.46 | 63.26 | 63.26 |
| Soybean meal, 46% CP | 35.90 | 35.90 | 30.30 | 30.30 | 33.00 | 33.00 |
| Soybean oil | 1.80 | 1.80 | 0.19 | 0.19 | 0.14 | 0.14 |
| Calcium carbonate | 1.19 | 1.19 | 1.26 | 1.26 | 1.27 | 1.27 |
| Dicalcium phosphate | 1.55 | 1.55 | 1.43 | 1.43 | 1.19 | 1.19 |
| Sodium bicarbonate | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Salt | 0.29 | 0.29 | 0.29 | 0.29 | 0.29 | 0.29 |
| DL-methionine, 99% | 0.20 | 0.20 | 0.15 | 0.15 | 0.29 | 0.29 |
| Probiotic4 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 |
| Absorbent5 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| Phytase6 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Vitamin premix7 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 |
| Inorganic mineral premix | 0.10 | 0.00 | 0.10 | 0.00 | 0.10 | 0.00 |
| Reduced inorganic mineral premix | 0.00 | 0.10 | 0.00 | 0.10 | 0.00 | 0.10 |
| Amino acids-minerals complexed8 | 0.00 | 0.075 | 0.00 | 0.075 | 0.00 | 0.075 |
| Inert9 | 0.10 | 0.025 | 2.40 | 2.23 | 0.10 | 0.025 |
| Total | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
| Chemical composition | ||||||
| AME, kcal/kg | 2,950 | 2,950 | 2,850 | 2,850 | 2,900 | 2,900 |
| CP, % | 21.00 | 21.00 | 18.80 | 18.80 | 20.00 | 20.00 |
| CP,10 % | 21.07 | 21.08 | 18.58 | 18.41 | 19.64 | 19.21 |
| DM,10 % | 87.92 | 87.96 | 88.56 | 88.04 | 89.65 | 89.52 |
| MM,10 % | 6.031 | 6.060 | 6.470 | 6.480 | 5.679 | 5.679 |
| EE,10 % | 4.910 | 4.580 | 2.290 | 2.276 | 2.946 | 2.946 |
| Digestible Met, % | 0.491 | 0.491 | 0.412 | 0.412 | 0.411 | 0.411 |
| Digestible Met + Cys, % | 0.770 | 0.770 | 0.666 | 0.666 | 0.680 | 0.680 |
| Digestible Lys, % | 1.047 | 1.047 | 0.912 | 0.912 | 0.982 | 0.982 |
| Ca, % | 1.050 | 1.050 | 1.020 | 1.020 | 1.050 | 1.050 |
| Available P, % | 0.490 | 0.490 | 0.460 | 0.460 | 0.480 | 0.480 |
| Na, % | 0.180 | 0.180 | 0.180 | 0.180 | 0.180 | 0.180 |
| CF, % | 3.162 | 3.162 | 2.917 | 2.917 | 3.075 | 3.075 |
Abbreviations: AACM, amino acids-mineral complexed; CF, crude fiber; EE, ether extract; IM, inorganic mineral; MM, mineral matter.
Prestarter diet (1–4 wk) offered to experiment 1 chicks (thermal comfort).
Starter feed (4–5 wk) offered to experiment 1 chicks (thermal comfort).
Prestarter feed offered to experiment 2 chicks (cold stress).
Guarantee levels: Bacillus licheniformis (min) > 16 × 1010 UFC/g.
Guarantee levels: bentonite, 666 g/kg; beta-glucans, 54 g/kg; manan oligosaccharides, 59.4 g/kg; bioactive phytogenic, 16.5 g/kg.
Guarantee levels: phytase (min), 10,000 FTU/g.
Guarantee levels (kg/kg of product): vitamin A, 8,000 IU; vitamin D3, 2,000 IU; vitamin E, 10,000 IU; vitamin K3, 2,000 mg; vitamin B1, 1,000 mg; vitamin B2, 4,000 mg; vitamin B6, 2,500 mg; vitamin B12, 11,000 mg; niacin, 25 g; calcium pantothenate, 10 g; folic acid, 550 mg; biotin, 50 mg;.
AvailaZMC: zinc, 4%; manganese, 4%; copper, 0.7%; total amino acid, 19%.
Kaolin.
Analyzed levels.