Feed additive composition analysis: Vitamin E. Vitamin E pituitary - has a regulatory role in brain systems feed additive, promote the production of the hormone thyroxine and stimulate the secretion of adrenaline; high doses of vitamin E can promote the generation of immunoglobulin Huaxian feed additives to improve resistance to disease feed additive How much money, and enhance the role of anti-stress. Feed additive composition analysis: Vitamin E. Animal dietary vitamin E requirement depends on composition, particularly dietary selenium and unsaturated fatty acid levels and the presence or absence of other antioxidants. In addition, various stress need to increase vitamin E.