Table 1.
Composition of basal diets.
| Item | Phase 1 | Phase 2 |
|---|---|---|
| Ingredient, % | ||
| Corn | 32.04 | 43.72 |
| Soybean meal | 23.00 | 27.00 |
| Blood plasma | 3.30 | 0.00 |
| Corn DDGS | 20.00 | 20.00 |
| Whey permeate1 | 12.00 | 2.00 |
| Poultry meal | 5.00 | 3.00 |
| L-Lys·HCl | 0.35 | 0.35 |
| DL-Met | 0.08 | 0.05 |
| L-Thr | 0.03 | 0.03 |
| Limestone | 1.30 | 1.10 |
| Vitamin premix2 | 0.03 | 0.03 |
| Mineral premix3 | 0.15 | 0.15 |
| Salt | 0.22 | 0.22 |
| Zinc oxide | 0.25 | 0.25 |
| Dicalcium phosphate | 0.15 | 0.50 |
| Poultry fat | 2.00 | 1.50 |
| Supplement (corn or enzyme) | 0.10 | 0.10 |
| Calculated composition | ||
| DM, % | 90.80 | 89.70 |
| ME, MJ/kg | 14.27 | 14.10 |
| SID Lys, % | 1.35 | 1.24 |
| SID Met + Cys, % | 0.74 | 0.68 |
| SID Trp, % | 0.25 | 0.22 |
| SID Thr, % | 0.79 | 0.73 |
| Ca, % | 0.80 | 0.71 |
| STTD P, % | 0.41 | 0.34 |
| Total P, % | 0.63 | 0.59 |
DDGS = distillers dried grains with solubles; SID = standardized ileal digestible; STTD = standardized total tract digestible.
DairyLac80 (International Ingredient Corporation) was used as a source of whey permeate containing (79.3 ± 0.8)% lactose.
The vitamin premix provided the following per kilogram of complete diet: 6,613.8 IU of vitamin A as vitamin A acetate, 992.0 IU of vitamin D3, 19.8 IU of vitamin E, 2.64 mg of vitamin K as menadione sodium bisulfate, 0.03 mg of vitamin B12, 4.63 mg of riboflavin, 18.52 mg of D-pantothenic acid as calcium pantothenate, 24.96 mg of niacin, and 0.07 mg of biotin.
The trace mineral premix provided the following per kilogram of complete diet: 4.0 mg of Mn as manganous oxide, 165 mg of Fe as ferrous sulfate, 165 mg of Zn as zinc sulfate, 16.5 mg of Cu as copper sulfate, 0.30 mg of I as ethylenediamine dihydroiodide, and 0.30 mg of Se as sodium selenite.