Table 1.
Pullet and laying hen basal diets1 for week 0–4, week 5–8, week 9–12, week13–15, week 16–17, week 18–24, and week 25–68.
| Ingredient (%) | week 0–4 | week 5–8 | week 9–12 | week 13–15 | week 16–17 | week 18–24 | week 25–68 |
|---|---|---|---|---|---|---|---|
| Corn | 65.65 | 67.14 | 67.99 | 69.35 | 64.65 | 48.47 | 59.49 |
| Soybean meal | 28.73 | 26.27 | 19.84 | 16.83 | 18.51 | 27.55 | 22.79 |
| Dried distillers grains | – | 1.00 | 6.00 | 8.00 | 8.00 | 8.00 | 5.00 |
| Poultry byproduct meal | 2.00 | 1.98 | 3.00 | 2.78 | 2.50 | 2.00 | 2.00 |
| Soy oil | 0.20 | 0.20 | 0.30 | 0.30 | 0.30 | 2.92 | 0.94 |
| Salt | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.43 | 0.38 |
| DL-methionine | 0.18 | 0.20 | 0.14 | 0.08 | 0.14 | 0.25 | 0.20 |
| L-lysine HCL | 0.07 | 0.05 | 0.06 | – | – | – | – |
| L-threonine | 0.06 | 0.06 | 0.03 | – | 0.01 | 0.03 | 0.03 |
| Limestone | 1.03 | 1.03 | 1.00 | 1.30 | 2.19 | 4.68 | 4.14 |
| Oyster shell | – | – | – | – | 2.19 | 4.68 | 4.14 |
| Dicalcium phosphate | 1.02 | 1.02 | 0.59 | 0.31 | 0.47 | 0.34 | 0.23 |
| Choline chloride | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 |
| Vitamin & mineral premix2 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Phytase3 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 |
| Calculated content (%) | |||||||
| Crude protein (%) | 20.00 | 19.24 | 18.26 | 17.29 | 17.55 | 20.18 | 18.04 |
| ME (kcal/kg) | 3019 | 3029 | 3050 | 3055 | 2935 | 2844 | 2844 |
| Calcium (%) | 0.78 | 0.77 | 0.68 | 0.72 | 1.92 | 3.79 | 3.34 |
| Non-phytate P (%) | 0.32 | 0.32 | 0.27 | 0.22 | 0.24 | 0.22 | 0.18 |
| Fat (%) | 3.42 | 3.54 | 4.17 | 4.34 | 4.14 | 6.03 | 4.26 |
| Digestible Lys (%) | 1.05 | 0.98 | 0.88 | 0.76 | 0.79 | 0.97 | 0.85 |
| Digestible Met+Cys (%) | 0.74 | 0.74 | 0.67 | 0.60 | 0.66 | 0.80 | 0.71 |
| Digestible Thr (%) | 0.69 | 0.66 | 0.60 | 0.54 | 0.55 | 0.67 | 0.59 |
Cholecalciferol was added to basal diets to obtain dietary cholecalciferol concentrations of 8,348, 18,348, 35,014, and 68,348 IU of D3/kg of diet. Measured cholecalciferol concentrations across all diet phases were 1,681, 7,987, 16,369, 39,802, and 72,529 IU of D3/kg, respectively.
Provided per kg of diet: vitamin A, 4,403 IU; vitamin D3, 1,457 IU; vitamin E, 1.10 IU; menadione, 0.77 mg; vitamin B12, 4.40 μg; choline, 254.79 mg; niacin, 13.21 mg; pantothenic acid, 4.05 mg; riboflavin, 2.75 mg; Cu, 2.70 mg; Fe, 33.75 mg; I, 0.67 mg; Mn, 42.90 mg; Zn, 32.50 mg; Co, 0.17 mg.
Supplementation of 0.06% phytase (300 FTU) to release 0.08% calcium and 0.08% non-phytate P in the complete diet.