*6.5.4 Trace Elements*

The usage of trace minerals (TM) by the poultry industry, such as copper (Cu), manganese (Mn), and zinc (Zn), has sparked controversy due to the possibility of ecological damage. Inorganic salts like carbonates, oxides, or sulfates are utilized to add these nutrients to broiler diets because most products used to manufacture chicken feed do not contain enough TM [29].
