Ganoderma lucidum feed additive for litopenaeus vannamei cultured in low-salt environment and application of ganoderma lucidum feed additive

Abstract

The invention discloses a ganoderma lucidum feed additive for litopenaeus vannamei cultured in a low-salt environment. The ganoderma lucidum feed additive comprises ganoderma lucidum polysaccharides and ganoderma lucidum amino acid. Extracted ganoderma lucidum active components including the polysaccharides and the ganoderma lucidum amino acid in the ganoderma lucidum feed additive for the litopenaeus vannamei cultured in the low-salt environment effectively enhance the immune function of the litopenaeus vannamei and can be used as a carbon source and a nitrogen source for growth of the litopenaeus vannamei in the low-salt environment for supplement use, so that the survival rate of the litopenaeus vannamei in a stable low-salt environment of 22 permillage and a fluctuating low-salt environment of 17-22 permillage is greatly increased, the survival rate can reach 85% or above, the growth condition is improved, the growth rate approaches 700%, and the feed coefficient is 2.42 or below.

Description

Technical field [0001] The invention relates to the technical field of aquaculture feed, and more specifically, to a low-salt cultured Litopenaeus vannamei ganoderma feed additive and its application. Background technique [0002] Litopenaeus vannamei (Litopenaeus vannamei) is one of the top three species in the world in terms of aquaculture production. It has the advantages of fast growth, delicious meat, and adaptability to high-density intensive aquaculture. In view of its wide salinity, Litopenaeus vannamei not only spreads across the seawater areas of coastal provinces, but also has a certain freshwater aquaculture market in the interior. The low-salinity aquaculture environment has a stress effect due to changes in the salinity and mineral element content of the aquaculture water, which leads to changes in the physiological activity, immune function and nutritional requirements of Litopenaeus vannamei. At the same time, it has a more physical and chemical toxic effect on th...

AI Technical Summary

Problems solved by technology

The low-salinity aquaculture environment is due to the stress effect formed by changes in the salinity and mineral element content of the aquaculture water, resulting in changes in the physiological activity, immune function, and nutritional requirements of Litopenaeus vannamei, and at the same time, it is more responsive to the toxic effects of physical and chemical water quality. Sensitive, due to its long-term exposure to different degrees of stress stimulation, its survival rate and growth state are low, which is not conducive to the cultivation of large-scale individuals, and the quality of the variety is poor

For aquaculture feed research, there are not many researches on the growth of Litopenaeus vannamei cultured in low-salt environment with Chinese medicine extract feed additives, and the application of Ganoderma lucidum polysaccharide and its amino acid extract in prawn culture in low-salt environment There are no related research reports

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