Method for preparing stichopus japonicus feed by using hydrolyzed fish meal and fermented bean pulp as main protein source

Abstract

The invention discloses a method for preparing stichopus japonicus feed by using hydrolyzed fish meal and fermented bean pulp as a main protein source, which comprises the following steps: grinding fish meal and bean pulp, which serve as the raw materials, to 200 meshes; soaking the fish meal in deionized water, regulating the pH value to 2.0 with hydrochloric acid, adding pepsase and trypsase, hydrolyzing fish meal for 20 hours at 37 DEG C, collecting hydrolysis solution, absorbing and drying to obtain hydrolyzed fish meal; sterilizing the bean pulp, placing the bean pulp into a fermentationtank, inoculating activated bacillus and lactobacillus, and fermenting at an initial temperature of 40 DEG C and pH value of 7 for 48 hours to obtain a fermented product; and mixing the hydrolyzed fish meal and the fermented bean pump to form the protein source of the feed, and mixing the protein source with an energy feed to obtain the stichopus japonicus feed. The method has the advantages of advanced process, high digestibility and capability of promoting growth. The feed prepared by the method can improve the immunity and disease resistance in stichopus japonicas and improve the culture survival rate of the stichopus japonicas.

Description

technical field [0001] The invention relates to a method for preparing sea cucumber feed, in particular to a method for preparing sea cucumber feed with hydrolyzed fish meal and fermented soybean meal as main protein sources. Background technique [0002] Due to the simple structure of the digestive system of sea cucumber, insufficient secretion of digestive enzymes, and weak ability to digest nutrients, the existing sea cucumber feed lacks the pretreatment process of raw materials, the digestibility of sea cucumber after ingestion is low, and the digestion burden of feed is too high. Heavy, not only affects the growth of sea cucumber, but also reduces the utilization rate of feed. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of high-quality and high-efficiency sea cucumber feed. The sea cucumber feed prepared by the method is conducive to improving digestibility, accelerating the growth speed of sea cucumber, i...

AI Technical Summary

Problems solved by technology

[0002] Due to the simple structure of the digestive system of sea cucumber, insufficient secretion of digestive enzymes, and weak ability to digest nutrients, the existing sea cucumber feed lacks the pretreatment process of raw materials, the digestibility of sea cucumber after ingestion is low, and the digestion burden of feed is too high. Heavy, not only affects the growth of sea cucumber, but also reduces the utilization rate of feed