Pure bis-glycinates: Highly available trace minerals

Most trace minerals are added to feed in the form of inorganic salts: oxides or sulphates. However, these inorganic sources are known to have low availability. Large quantities pass through the animal and end up in the manure because they have not been absorbed by the intestines. We therefore need sources of higher available trace minerals, such as chelates based on synthetic glycine. By Sjo Zwart , Tessenderlo Chemie, Aliphos division, the Netherlands Current legislation has lowered the use o