Application of euphausia superba powder in preparation of salmon and bulltrout color enhancing culture feed

Abstract

The invention discloses the application of a euphausia superba powder in preparation of salmon and bulltrout color enhancing culture feed. The special salmon and bulltrout color enhancing culture feed is prepared through the following components in percent by mass: 10-70% of a euphausia superba powder, 1-20% of soybean protein concentrate, 1-10% of a barley pest powder, 1-10% of a honey bee pupae powder, 1-20% of self-raising flour, 2-10% of a beer yeast powder, 1-10% of starch, 4-20% of fairy shrimp, 2-4% of spirulina, 1-4% of soyabean lecithin, 2-4% of glycine betaine, 1-3% of fish oil, 1-3% of a vitamin mixture, 1-5% of a mineral element mixture, 1-5% of immunopotentiator, 0.5-2% of bacillus subtilis, 0.1-1% of lilac, 0.1-1% of rhodopseudomonas palustris, and 0.1-1% of prodigiosin. The feed shows outstanding attracting performance for salmon and bulltrout; the flesh of salmon and bulltrout can be obviously improved after 10 days and the color is not faded; the flesh of salmon and bulltrout is high in quality and good in mouth feeling; the culture benefit can be obviously increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture. More specifically, it relates to the application of Antarctic krill powder in the preparation of color-enhancing breeding feed for salmon and trout. Background technique [0002] Salmon and trout are collectively referred to as salmon and trout. Salmon and trout are delicious and nutritious. They can be eaten fresh, salted, smoked, canned, etc. Salmon caviar is a rare food. Wild salmon and trout are expensive and scarce, so artificial farming of salmon and trout has important economic benefits. Salmon and trout fish currently on the market are mainly based on artificial breeding. [0003] However, compared with the wild fish of the same species grown in the natural environment, the artificially raised salmon and trout have loose meat, less crude protein, more body fat, light aroma, poorer fish color, and poor palatability. [0004] In addition, Antarctic krill meal has a good role in aquat...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of the meat quality of the existing artificially cultured salmon and trout and the high fluorine content of Antarctic krill meal, prepare Antarctic krill meal with a fluorine content lower than 1mg/kg, and then optimize a Special color-enhancing breeding feed for salmon and trout, which has a very good color-enhancing effect on salmon...

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