SUMMARY The objective was to conduct a collaborative study to evaluate the mineral matter contents in feeds in seven feed analysis laboratories from institutions linked to the National Institute of Sc
a: This vitamin and trace mineral premix contained per kg diet: vitamin A (retinol) - 1750 IU; vitamin D3 (cholecalciferol) - 200 IU; vitamin E (tocopherol) - 11 IU; vit. K1 (phylloquinone) - 0.5 mg;
