NEKTON-E is a dietary supplement based on alpha-tocopherol, which has the properties efficient and sustainable from a biological point of view, of the vitamin E. NEKTON-E protects the cell membrane, the purification of the metabolic products, the formation of hormones and the functioning of the muscles. NEKTON-E improves also and above all the fertility of the animals, the survival rate of the embryos and the viability of small just-born. NEKTON-E encourages as well the whole of cellular metabolism, antibody formation, strengthening of defenses, and is thus positively on the immunity of the body. NEKTON-E completes the minimum content of vitamin E in the food and covers the needs of the animals with this nutrient so important for the body. NEKTON-E is soluble in cold water and must be administered every day via the drinking water or mixed in the slop.