Olsson's Trace Element is a macro mineral supplement designed for a broad range of mineral deficiencies. The effect of balancing these essential elements is the efficient breakdown of feed consumed by the animal. A deficiency in trace elements will have a varied effect on an animal. Deficiencies in copper, iron, zinc, manganese, cobalt, iodine, and selenium can reduce the animal's growth and reproduction rates, and result in less efficient feed conversion and depressed immunity. Balancing these elements will improve general production of the herd.