Vitamin E Supplement Powder 10,000 IU/20g. Horses, Cattle and Swine: INDIVIDUAL FEEDING: One level measure 33 cc blue (20 g) per 400 kg of body weight added to the feed daily (measure enclosed). PREMIX FEEDING: Use the feed at the rate of 20 g per tonne of mixed feed for each intended 10 IU of supplemental vitamin E per kg. DO NOT ADD DIRECTLY: Dilute in a premix before blending to ensure efficient distribution.