This invention relates to the field of
animal feed technology and discloses a compound nutritional feed suitable for the growth and development of Ili horses in high-altitude and cold regions. The feed comprises 88-92 parts roughage and 8-12 parts
solid-dispersed microspheres. The
solid-dispersed microspheres are made of
hydrogenated palm oil,
calcium propionate,
anhydrous citric acid, and
lysophosphatidylcholine, and have a lipid crystalline
network structure. In an aqueous environment, the
lysophosphatidylcholine within the microspheres establishes hydration channels, promoting water penetration and triggering an in-situ acid-base metathesis reaction between
calcium propionate and
anhydrous citric acid. The resulting liquid free propionic acid causes a sharp drop in the local
melting point of the microspheres, leading to the disintegration of the macroscopic structure. This invention can simultaneously release free propionic acid and
hydrogenated palm oil, providing energy through
gluconeogenesis and intestinal
enzymatic hydrolysis, respectively, achieving a dual-effect synergistic
energy supply from carbohydrates and lipids. This meets the
energy metabolism needs of Ili horses in high-altitude and cold environments and exhibits good long-term storage stability.