Due to the improved genetic potential and performance in animal production, the requirement of nutrients has increased. The absorption of trace minerals is not directly proportional to the increased feed intake, because of their unique absorption characteristics.
Trace minerals are required in very small amounts. These are not synthesized in the body. Apart from this their unique absorption pattern limits their bioavailability. High performing animals are under continuous stress and require higher levels of trace minerals to cope up with the situation. Since immunity and maximum productivity is compromised if the trace mineral status is not maintained, it becomes imperative to supplement the animals with more bioavailable minerals.
To be absorbed inorganic minerals need to attach themselves to an organic carrier or ligand such as an amino acid/starch/fatty acid molecule. Minerals often get attached to antagonists, or, if unable to find a suitable ligand /carrier, are excreted from the system. Organic minerals are specifically designed for enhanced bioavailability by bonding inorganic minerals to a suitable carrier. All organic minerals are, however, not the same; the bioavailability of an organic mineral will depend on the quality and strength of the bond.