The present application relates to the field of pet feed, and discloses a maintenance ration formula for improving the smoothness of dog hair. The formula comprises base ration particles and lipid microcapsules attached to the surface of the base ration particles; the lipid microcapsules encapsulate a core material composed of essential fatty acids and ceramides, have a double-layer
wall material structure, and the outer layer is acid-resistant
plant gum and the inner layer is
lipase-sensitive
phospholipid; the microcapsules are attached to the surface of the puffed base ration by low-temperature vacuum spraying. The present application makes the microcapsules resistant to
gastric acid and releases the core material under the action of duodenal
lipase, targets and enriches in sebaceous glands through the
lymphatic system, solves the problems of low lipid delivery conversion rate and insufficient substrate of sebaceous glands, improves the proportion of
sebaceous gland ceramides, and reduces the hair
friction coefficient.