Availa-Plus contains a combination of complexed zinc, manganese, copper and cobalt, plus potassium iodide. The Performance Minerals found in Availa-Plus, when fed as part of a well-fortified diet, have been shown to sustain health. A healthy animal will have good claw/hoof integrity, reproduction/fertility rates, milk quality, average daily gain, feed efficiency/conversion. In addition, when an animal has the proper balance of trace minerals it is better able to cope with the challenging effects of stress. Availa-Plus is built on a unique, patented molecule that consists of one metal ion bound to one amino acid ion ? called a metal amino acid complex. Zinpro Performance Minerals provide the highest biological efficacy of any trace mineral products on the market. For more than 45 years, Zinpro Performance Minerals have delivered positive animal performance responses and a strong return on investment in operations around the world.