Preparation method of microbial fermented prawn feed

Abstract

The invention provides a preparation method of a microbial fermented prawn feed. The method comprises the following steps: step 1, mixing freshwater mussels, river snails and silkworm chrysalises, adding water, grinding the obtained mixture into slurry, adding pepsin and papain and carrying out enzymolysis so as to obtain first filter residues and supernatant; step 2, mixing lightyellow sophora roots, crofton weeds, garden columbine, leaves of oriental blueberry and herba corydalis, and conducting heating, refluxing and separation to obtain second filter residues and a filtrate; step 3, inoculating a primary culture medium with bifidobacterium bifidum, lactobacillus and bacillus natto and carrying out culturing; step 4, mixing corn meal, the first filter residues, the second filter residues, the filtrate, bacillus subtilis and clostridium butyricum, and conducting fermentation to obtain a first fermented product; mixing the first fermented product with clam shell powder, and conductingfermentation, filtration and drying to obtain a second fermented product; and step 5, mixing the second fermented product, compound vitamins and a powder, and conducting granulation. The prawn feed of the invention contains probiotics which can increase the immune system functions of the prawns, and can also treat intestinal flora disorder, improve intestinal environment, and promote intestinal patency.

Description

technical field [0001] The invention relates to the technical field of prawn feed, in particular to a preparation method of microbial fermented prawn feed. Background technique [0002] Shrimp farming has the advantages of fast growth, strong adaptability, and high yield, and has become one of the most important shrimp species in my country. However, in the process of high-density industrialized shrimp farming, the pollution of high-protein substances in the feed to the water body, and the pollution of the water body by ammonia, nitrogen, and hydrogen sulfide formed by shrimp excrement often cause a large number of prawns to morbidity and death. For the disease prevention and control in the breeding process, the commonly used technical treatment methods are mainly the large-scale use of antibiotics, quaternary ammonium salts, iodine preparations and other disinfectants, which not only seriously damages the ecological balance, but also remains in the shrimp body, destroying t...

AI Technical Summary

Problems solved by technology

However, in the process of high-density industrialized shrimp farming, the pollution of high-protein substances in the feed to the water body, and the pollution of the water body by ammonia, nitrogen, and hydrogen sulfide formed by shrimp excrement often cause a large number of prawns to morbidity and death

For the disease prevention and control in the breeding process, the commonly used technical treatment methods are mainly the large-scale use of antibiotics, quaternary ammonium salts, iodine preparations and other disinfectants, which not only seriously damages the ecological balance, but also remains in the shrimp body, destroying the normal bacteria of the animal body. Group balance will lead to a decline in the immune function of animals, and will lead to the increase of drug-resistant strains in animals, further increasing the difficulty of disease prevention and control

Due to the lack of clear guidelines for use, the abuse of antibiotics and chemical drugs has posed a great threat to the ecological environment and human health for a long time

Images