Table 2.
Composition of experimental diets for phase 2
| Item | NC | PC | ZnGly 400 mg/kg | ZnGly 800 mg/kg |
ZnGly 1,200 mg/kg |
ZnO 2,500 mg/kg |
|||
|---|---|---|---|---|---|---|---|---|---|
| ZnO 0 mg/kg |
ZnO 700 mg/kg |
ZnO 1,400 mg/kg |
ZnO 2,357 mg/kg |
||||||
| Feedstuff, % | |||||||||
| Corn, yellow | 51.44 | 51.44 | 51.68 | 51.61 | 51.54 | 51.44 | 51.64 | 51.60 | 51.47 |
| Soybean meal, 48% CP | 22.00 | 22.00 | 22.00 | 22.00 | 22.00 | 22.00 | 22.00 | 22.00 | 22.00 |
| Whey permeate | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 | 13.00 |
| Poultry meal | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 |
| Blood plasma | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 |
| Fish meal | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 |
| Poultry fat | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 |
| Dicalcium phosphate | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Limestone | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 |
| L-Lys HCl | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| DL-Met | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| L-Thr | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 | 0.16 |
| L-Trp | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| L-Val | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Formic acid | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Salt | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 | 0.22 |
| Vitamin premix1 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Trace mineral premix2 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 |
| Zinc oxide | -- | -- | -- | 0.07 | 0.14 | 0.24 | -- | -- | 0.25 |
| Zinc glycinate | -- | -- | 0.04 | 0.04 | 0.04 | 0.04 | 0.08 | 0.12 | -- |
| Total | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 |
| Calculated composition | |||||||||
| DM, % | 90.3 | 90.3 | 90.2 | 90.1 | 90.1 | 90.0 | 90.2 | 90.2 | 90.1 |
| ME, kcal/kg | 3,409 | 3,409 | 3,408 | 3,406 | 3,403 | 3,400 | 3,407 | 3,405 | 3,401 |
| CP, % | 21.6 | 21.6 | 21.6 | 21.6 | 21.5 | 21.5 | 21.6 | 21.6 | 21.5 |
| SID3 Lys, % | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 | 1.35 |
| Ca, % | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 |
| STTD4 P, % | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Zn, % | 0.02 | 0.02 | 0.03 | 0.07 | 0.12 | 0.19 | 0.04 | 0.05 | 0.19 |
| Analyzed composition | |||||||||
| DM, % | 90.26 | 90.17 | 90.19 | 90.22 | 90.53 | 90.22 | 89.77 | 90.33 | 90.33 |
| CP, % | 20.26 | 20.44 | 20.83 | 20.23 | 21.10 | 20.02 | 21.44 | 21.00 | 21.42 |
| Zn5, % | 0.01 | 0.01 | 0.02 | 0.07 | 0.11 | 0.18 | 0.04 | 0.05 | 0.18 |
| Formate5, % | 0.13 | 0.13 | 0.15 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 |
| pH | 5.88 | 5.89 | 5.75 | 5.80 | 5.81 | 5.78 | 5.70 | 5.68 | 5.85 |
1The vitamin premix provided per kilogram of complete diet: 6,614 IU of vitamin A as vitamin A acetate, 992 IU of vitamin D3, 19.8 IU of vitamin E, 2.6 mg of vitamin K as menadione sodium bisulfate, 0.03 mg of vitamin B12, 4.6 mg of riboflavin, 18.5 mg of D-pantothenic acid as calcium panthonate, 26.5 mg of niacin, and 0.07 mg of biotin.
2The trace mineral premix provided per kilogram of complete diet: 30 mg of Mn as manganous oxide, 100 mg of Fe as ferrous sulfate, 100 mg of Zn as zinc sulfate, 15 mg of Cu as copper sulfate, 0.3 mg of I as ethylene diamine dihydroiodide, and 0.3 mg of Se as sodium selenite.
3SID = standardized ileal digestible.
4STTD = standardized total tract digestible.
5Zinc and formate contents were analyzed by inductive coupled plasma (ICP) spectroscopy and enzymatic assay, respectively (Eurofins Scientific Inc., Des Moines, IA).