Farnam's Mare Plus is rich in vitamins A, D-3 and E, as well as calcium, phosphorus and iodine. It helps build and condition mares to meet the demands of pregnancy and keeps them in peak condition during gestation, foaling and lactation. Start feeding Mare Plus to broodmares 90 days before conception and keep feeding it year round.FEEDING DIRECTIONS:Feed one ounce of Mare Plus twice daily with the feed - once in the morning and again in the evening. Mix right with regular ration. A handy measuring cup is packed inside. One level cupful holds exactly one ounce.CAUTION: FOLLOW LABEL DIRECTIONS. THE ADDITION TO FEED OF HIGHER LEVELS OF THIS PREMIX CONTAINING SELENIUM IS NOT PERMITTED.