premix:
The composition of poultry broiler premix as follows:

Each kg contains:

Vitamin A 180 000 -20 0000IU Vitamin D3 60 000 -70000 IU
Vitamin E ≥ 500 IU Vitamin K3 50 mg
Vitamin B1 ≥ 40 mg Vitamin B2 ≥ 140 mg
Vitamin B6 ≥ 80 mg Vitamin B12 ≥ 0.4 mg
folic acid ≥ 24 mg Biotin ≥ 2.4 mg
nicotinic acid ≥ 1300 mg pantothenic acid ≥ 230mg
choline chloride ≥ 10 g copper 12-14g
Iron 1.2g-1.4g Manganese 1.8g-3.0g
Zinc 1.5g-1.7g Selenium 4mg-10mg
Iodine 20mg-200mg Moisture ≤ 10%
Calcium 10-20% phosphorus ≥ 3%
Salt 18% carriers qs

also have layer premix composition,could let me know if needed..