General type shell solidifying additive for shrimps and crabs, and preparation method and application of general type shell solidifying additive

Abstract

The invention relates to the technical field of aquaculture, in particular to a general type shell solidifying additive for shrimps and crabs, and a preparation method of the general type shell solidifying additive. The general type shell solidifying additive for shrimps and crabs provided by the invention is prepared from the following components in percentage by mass of 25%-30% of shrimp shell powder, 15%-20% of cuttlefish visceral meal, 25%-30% of calcium dihydrogen phosphate, 0.5%-1% of ferrous sulfate, 1%-2% of cupric glycinate, 2%-3% of zinc methionine, 1%-2% of manganese glycine, 1%-2%of astaxanthin, 3%-5% of cholesterol, 4%-6% of chitosan, 5%-8% of L-ascorbate-2-monophosphate having content being 35%, 0.5%-1% of vitamin D3 and 1%-2% of vitamin E. Through the adoption of the general type shell solidifying additive for shrimps and crabs disclosed by the invention, the problems of soft shells, failing of exuviation, shell solidifying and the like in the breeding course of the shrimps and the crabs can be solved, the survival rate of the shrimps and the crabs can be effectively increased, the immunity and the resistance of the shrimps and the crabs can be improved, and growthcan be promoted.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a general-purpose shell-fixing additive for shrimp and crab and a preparation method thereof. Background technique [0002] Shrimp and crab, as the main crustaceans, have developed rapidly in domestic farming in recent years. In 2016, the output of seawater shrimp farming in my country reached 1,271,743 tons, an increase of 9.51% over 2015; the output of seawater crab farming reached 292,850 tons, an increase of 7.04% over 2015; In 2016, the output of freshwater shrimp farming in my country reached 2,032,113 tons, an increase of 8.82% over 2015; the output of freshwater crab farming was 812,103 tons, a slight decrease of 1.36% compared with 2015; considerable scale of farming. With the increase of the scale of shrimp and crab farming, many farming problems also appear, such as soft shell disease, failure to moult, etc., which are more common common growth problems in the proce...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the shortcomings and deficiencies in the existing feed technology, to provide a general-purpose solid shell additive for shrimp and crab, which solves common problems such as soft shell disease and failure to molt in the process of shrimp and