Sodium selenite is in feedThe most important and commonly used selenium supplementThe core function isProvide essential trace element "selenium" for animals. Selenium isGlutathione peroxidaseThe core component, this enzyme is a key antioxidant in the animal body, capable of eliminating free radicals and protecting the structure of cell membranes, yesMaintaining the normal function of the immune system, ensuring reproductive performance (such as sperm motility and embryo survival), and preventing various endemic deficiencies (such as white muscle disease in cattle and sheep, liver necrosis in pigs, and exudative quality diseases in chicks) are of vital importance.