Cow compound nutritional supplement at perinatal period

The invention discloses a composite nutrition supplement for cows in the perinatal period. The composite nutrition supplement comprises pre-mixer materials by weight parts: 0.5-1 part of rumen-protected vitamin E, 0.2-0.3 part of rumen-protected Beta-carotin, 5-6 parts of rumen-protected nicotinic acid, 0.015-0.02 part of rumen-protected biotin, 3-4 parts of rumen-protected choline, 0.35-0.45 parts of zinc lysinate, 50-60 parts of glycoxydase preparation and 100 parts of brown sand sugar in appropriate amount. The composite nutrition supplement has the functions of improving milk cow immunity, protecting liver and kidney functions, preventing puerperal diseases of milk cows, improving the reproductive performance, shortening the intercalving interval, promoting metabolism, increasing milk yield, etc. The result of a contrast test of thousands of cow in two years shows that the composite nutrition supplement is safe and reliable, and has remarkable effect and more ideal cost accounting.