Table 3.
Composition of experimental premixes.
| Ingredient | Premix 0% selected mineral (P0%) | Premix 50% selected mineral (P50%) | Premix 100% selected mineral (P100%) |
|---|---|---|---|
| Monocalcium phosphate (CaH4P2O8) | 40 | 40 | 40 |
| Polfamix A-Z1 | 33.3 | 33.3 | 33.3 |
| Fodder chalk 37% (CaCO3) | 14.87 | 14.4 | 14.4 |
| Sodium chloride (NaCl) | 8.2 | 8.2 | 8.2 |
| DL-methionine (C5H11NO2S)2 | 3.1 | 3.1 | 3.1 |
| Iron oxide (FeO) | 0.5 | 0.5 | 0.54 |
| Manganese oxide (MnO) | - | 0.27 | 0.5 |
| Zinc oxide (ZnO) | - | 0.12 | 0.24 |
| Copper sulfate (CuSO4•5H2O) | - | 0.09 | 0.17 |
1
Mixture of supplements for laying hens (Polfamix): Vitamin A1 200,000 IU (retinyl acetate), vitamin D3 (cholecalciferol) 200,000 IU, vitamin E 1,000 IU (dl-α-tocopheryl acetate), vitamin K3 1,000 mg, vitamin B1 100 mg, vitamin B2 3,000 mg, vitamin B6 200 mg, vitamin B12 2,000 mg, vitamin C 5,000 mg, biotin 20,000 mg, folic acid 80 mg, niacin 12,000 mg, calcium pantothenate 4,000 mg.
2
Source of amino acids (MetAmino, EVONIK), feed grade 99%.