Liffey Mills Dairy Care 19%. Dairy Care is a 20% protein cube/ration carefully formulated for young replacement heifers. It contains high levels of top quality proteins including native beans and soya to ensure that you achieve weight for age targets whilst also encouraging frame size and growth early on in the animal’s life. These aspects cannot be overlooked when trying to calve down at 2 years. Our proteins have being balanced with 40% barley to deliver a good energy content and so this feed can be introduced from 6 months of age right up to calving if needed. Dairy Care can be purchased in cube or ration form and contains minerals as standard.