Special microbial feed additive for white-leg shrimps and preparation method of special microbial feed additive

Abstract

The invention discloses a special microbial feed additive for white-leg shrimps and a preparation method of the special microbial feed additive and belongs to the field of microbial additives. The preparation method of the special microbial feed additive comprises steps as follows: (1), corn flour, maltodextrin and seaweed meal are disinfected for 10 s by ultraviolet light; (2), the corn flour, the soybean meal, the maltodextrin and the seaweed meal are uniformly mixed and added with water, the mixture is stirred to form paste, the paste is gradually heated to 80 DEG C, carrageenan is added, stirring is continued while heat is preserved, and mixed powdery paste is obtained; (3), sodium caseinate, edible salt, vitamin C, solanum nigrum juice, disodium succinate and fish bone meal are added to the mixed powdery paste obtained in the step (2), and then bacillus and nitrobacteria are added; stirring is performed for 5 min, and then the mixture is extruded to be granular and dried in the air. The microbe adding process is different from a common addition mode only considering the microbe content after addition, loaded substances of the microbes are considered simultaneously, the functions of the microbes are performed through the additive, and the cost is saved to the greatest extent.

Description

technical field [0001] The invention belongs to the field of microbial additives, and in particular relates to a special microbial feed additive for Penaeus vannamei and a preparation method thereof. Background technique [0002] Penaeus vannamei: the scientific name is Penaeus vannamei, which belongs to Arthropoda, Crustacea, Decapod, Natantia, Penaeidae, Penaeus, and Lito-penaeus subgenus. It is a wide-temperature and wide-halt tropical shrimp. kind. [0003] Penaeus vannamei is also commonly known as white-legshrimp and whiteshrimp. It was once translated as Penaeus vannamei. It looks exactly like Penaeus sinensis and Penaeus moji, and its average life span can be at least 32 months. Adults can be up to 24cm long, with a thin carapace. The normal body color is light blue-gray, and there are no markings on the whole body. The legs are often chalky, so they are called white-legged shrimps. [0004] Penaeus vannamei is one of the three largest shrimp species with the high...

AI Technical Summary

Problems solved by technology

[0007] For the existing culture process of Penaeus vannamei, microorganisms are simply added, resulting in the inability of the microorganisms to reproduce in large numbers, and the reproduction speed is slow. At the same time, the added nutrients exist in the water body and are prone to produce debris and cause water pollution, thereby reducing the growth rate of Penaeus vannamei. For the problems of output and emergence rate, the present invention provides a special microbial feed additive for Penaeus vannamei and its preparation method, which comprehensively considers the addition of microorganisms and the supporting nutrients of microorganisms, and has the functions of adjusting microecological imbalance, biological antagonism, improving the body environment, Enhance immunity, promote the body's nutrient absorption and purify the water environment, etc.