For foals and lactating mares being fed with their foals . . . Purina® Omolene #300® Horse Feed contains the Purina® Amplify® Nugget, a patented, high-fat, extruded particle that contains a proprietary blend of vegetable oils, flax seed and rice bran for an optimal fatty acid profile. It also contains a blend of amino acids and polysaccharides as found in mare’s milk for optimal muscle growth and bone development in foals. Omolene #300® Horse Feed also provides additional protein and calorie requirements for lactating mares.