Functions

Enzyme activator.


Manganese


Sulfur


Iodine

Selenium a


Enzyme activator.
Normal skeletal formation.

Essential for protein metabolism.
Important intracellular anion.

Normal thyroid gland function.


Essential, but mode of action unclear.
Prevents exudative diathesis in chicks.
Prevents necrotic liver degeneration in rats.
Controls white muscular disease in ruminants.


Molybdenum a


Constituent of xanthine oxidase.


a) Selenium and molybdenum are potentially toxic to livestock.


Element


Zinc