Microalgae functional nutrition enhancer for fish, preparation method and application thereof

Abstract

The present invention provides a microalgae functional nutritional enhancer for fish, a preparation method and application thereof, wherein the microalgae functional nutritional enhancer is a particle made of raw materials containing chlorella and chaete algae, wherein the mass content of chlorella is 20%-40%, and the mass content of chaete algae is 60%-80%. The present invention does not change the conventional commercial feed formula, avoids excessive addition of fat and starch to the parent fish period to cause fatty liver phenomenon, and uses the nutritional enhancer containing chlorella and chaete algae as a functional nutritional product supplemented in addition to the feed. The functional nutritional enhancer is rich in digestible protein, LC-n-3HUFA, polysaccharides, vitamins, trace elements and beta-carotene, and can significantly improve the reproductive performance of sturgeon parent fish by feeding sturgeon parent fish; the preparation method prepares the nutritional enhancer particles or tablets with dense structure and not easy to dissolve in water through a special low-temperature process, while ensuring that the structure of the heat-sensitive substance DHA is not destroyed.

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