(Vet-a-mix) EQU-SeE is a nutritional supplement to be used in horses when a vitamin E and selenium deficiency exists. Guaranteed analysis is 90.7 mg selenium and 20,000 IU vitamin E per pound. The normal recommended dosage is 0.1 ppm to 0.3 ppm or 1/2 to 1-1/2 tsp per 10 lbs. daily feed intake. Dosage for a 1000 lb. horse is recommended at 1 - 3 tsp daily.