Cow feed and production method thereof

The invention discloses cow feed and a production method thereof. The cow feed is composed of raw materials, by weight, of 10-20 parts of radix puerariae vine, 20-35 parts of bagasse pith, 10-15 parts of corn stalks, 10-15 parts of white mulberry stems, 15-20 parts of papaya leaves, 3-8 parts of molasses and 0.5-1 parts of trace elements. The production method includes the steps of drying all components, pulverizing all components to 60-80 meshes, adding 3-5% of lactic acid bacteria to bagasse pith, corn stalks, white mulberry stems and papaya leaves for fermentation, pulverizing or respectively granulating all components, and uniformly mixing to obtain the cow feed. The cow feed is safe, good in palatability, nutritionally balanced and reasonable in component matching, facilitates meeting of needs of cows in various stages of growth and development and milk production of lactating cows, and has good economic and social benefits.