a crab feed

Abstract

The invention belongs to the technical field of aquaculture, and particularly relates to a crab feed. The crab feed is prepared from the following raw materials in percentage by weight: 25-28 percent of wheat flour, 9-12 percent of corn DDGS (distillers dried grains with soluble), 15-18 percent of fly maggot powder, 12-14 percent of albumen powder, 3-5 percent of beer yeast, 0.8-1.5 percent of DHA (docosahexaenoic acid) microalgae oil, 0.5-1 percent of EPA (eicosapentaenoic acid) refined oil, 2 percent of fish oil, 1 percent of kelp flour, 0.1-0.2 percent of choline chloride, 0.2 percent of sodium chloride, 0.04-0.05 percent of L-carnitine, 1-2 percent of chitosan, 1-2 percent of tea polyphenol, 0-1 percent of garlic, 2-4 percent of isomaltooligosaccharide, 0.3 percent of composite bacillus, 0.05-0.06 percent of mildew preventive, 1-3 percent of compound adhesive, 1-2 percent of compound mineral substance, 0.5-1.5 percent of vitamin complex and the balance of biogas residue. The crab feed is capable of increasing the survival rate of crabs, meeting the growth demand of the crabs and preventing the fish flour from being used as a raw material.

Description

technical field [0001] The invention belongs to the technical field of mariculture, in particular to a crab feed. Background technique [0002] As the main protein source of aquafeed, fishmeal has been widely used in aquaculture because of its high protein content, balanced amino acid composition, good palatability, and low anti-nutritional factors. The scale of aquaculture in the world is growing at an annual rate of 11%, but the annual output of fish meal in the world is declining. In recent years, the annual output of fish meal is only maintained at 6-7 million tons, resulting in an imbalance between the supply and demand of high-quality feed protein sources. Therefore, finding high-quality fishmeal substitute raw materials and studying the addition ratio of alternative protein sources have become key issues for the sustainable development of aquaculture. Soybean meal has been widely studied as a high-quality fishmeal substitute because of its high protein content, reaso...

AI Technical Summary

Problems solved by technology

At present, the breeding technology of crabs is very common, while the traditional farming feeds frozen miscellaneous fish, small shrimps, nutrient components and feeds that are inconsistent with crabs as bait; resulting in a low survival rate of pond culture, which seriously affects the production and production of crabs. Economic income of farmers

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