""Trikem E+Selen is a supplement designed for horses, consisting of vitamin E and selenium, two essential antioxidants that support muscle function during training and exertion. Technical description: DOSAGE:30 ml / day for large horses (550 kg). Last 50 days per kg. Others in proportion to body weight or as veterinary regulations.CONTENT per dosage (20g):Vitamin E 500 mg.Selenium (selenmethionin) 2 mg.Manganese (chelated) 1 mg.Zinc (chelated) 1 mg.Lysine 1000 mg.Methionine 1000 mg. Usage instructions: Vitamin E is very important to the horses muscle function. Deficiency occurs easily when cold, feed changes and pregnancy. Affect performance and endurance and contributes to horse welfare. Vitamin E also affects the blood supply to the muscles by being an important part of the rehabilitation of the blood vessels. Ensiled hay is usually poorer in vitamin E as the acids in the fermentation process breaks down the vitamin.