Microbial preparation applied in feeding of whiteleg shrimp, and preparation method and applications thereof

Abstract

The invention relates to a microbial preparation applied in feeding of whiteleg shrimp, and a preparation method and applications thereof. The microbial preparation is prepared from, by mass, 30 to 40 parts of bacillus subtilis, 20 to 30% of bacillus megatherium, 30 to 35 parts of saccharomycetes, and 850 to 950 parts of a carrier. The preparation method comprises following steps: 1, bacterial strains are prepared; 2, bacillus subtilis, bacillus coagulans, and saccharomycetes obtained in the former step are cultured independently so as to obtain bacteria solutions; 3, the obtained bacteria solutions are mixed at the mass ratio so as to obtain a mixed bacteria solution, the mixed bacteria solution is mixed with the carrier, and is subjected to drying, smashing, and sieving so as to obtain the microbial preparation. The microbial preparation can be directly taken as a feed of whiteleg shrimp for feeding, is capable of improving the intestine microenvironment of whiteleg shrimp obviously, improving immunityof whiteleg shrimp, and improving the meat of cultured animals.

Description

technical field [0001] The invention belongs to a microbial preparation, in particular to a microbial preparation for feeding Penaeus vannamei and a preparation and application method. Background technique [0002] Microbial preparations refer to live bacterial preparations made from normal microorganisms and beneficial factors required in animals through special processing techniques. [0003] At present, Litopenaeus vannamei is the largest shrimp cultured in the world, accounting for 64.71%. According to the data of China Fisheries Yearbook in 2015, the cultured volume of Penaeus vannamei in my country in 2014 was 1.4299 million tons, of which 812,500 tons were cultured in seawater. Accounted for 57%, and freshwater aquaculture reached 617,400 tons, accounting for 43%. It has been more than 30 years since the introduction of Litopenaeus vannamei to China in the late 1980s. With the advancement of science and technology, the breeding density and intensification are getting ...

AI Technical Summary

Problems solved by technology

[0004] In order to control the raging diseases, antibiotics have been used in large quantities. Although the effect was obvious at first, the long-term and uncontrolled abuse of antibiotics has brought a series of problems to animals, farmed products and the environment.

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