The inventions discloses a trace element solution, which comprises at least the following metals: zinc manganese selenium and copper and which comprises a concentration of the metals of at least 90 mg/ml. The solution may comprise the following concentrations: at least 60 mg/ml zinc at least 10 mg/ml manganese at least 5 mg/ml selenium and at least 15 mg/ml copper. The solution may comprise chromium, iodine and chromium.
