| abstract |
A trace element solution comprises selenium, zinc, manganese and iron at a concentration of at least 60 mg/ml. The solution may further comprise at least one compound selected from the group comprising iodine, potassium iodide, sodium iodide, iron chloride, zinc oxide, manganese sulphate, sodium selenite, copper carbonate, sodium carbonate, anhydrous disodium EDTA and sodium hydroxide. |