Bacillus altitudinis strain JYD51 and application thereof in aquaculture

The compound bacterial agent of Bacillus hygroscopicus JYD51 and Bacillus spheroides JYQ7 solved the problem of Hepatocellular carcinoma in shrimp and Microsporidia in crab, improved the survival rate and product quality of shrimp and crab, and achieved effective control and purification in aquaculture.

CN119979379BActive Publication Date: 2026-06-02HUAIAN XIANGLAN GOLD LAND BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAIAN XIANGLAN GOLD LAND BIOTECHNOLOGY CO LTD
Filing Date
2025-01-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively control infections of Enterocytozoa in shrimp and Microsporidia in crabs, leading to slow growth, hepatopancreatic atrophy, and mass mortality in shrimp and crabs. Furthermore, there are no reports on the application of Bacillus subtilis in aquaculture.

Method used

The compound bacterial agent of Bacillus hygroscopicus JYD51 and Bacillus spheroides JYQ7 is prepared into liquid or solid bacterial agent through fermentation and applied to aquaculture. It can be sprayed directly or mixed into feed to synergistically inhibit enterocolitis in shrimp and microsporidia in crabs and purify the aquatic environment.

Benefits of technology

It significantly improves the survival rate and product quality of shrimp and crabs, reduces water pollution, increases the economic benefits for farmers, and has a simple preparation method with low cost.

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Abstract

The application discloses a Bacillus altitudinis JYD51 and application thereof in aquaculture, which has been preserved in the China General Microbiological Culture Collection Center on October 10, 2024, and the preservation number is CGMCC No.32164. The JYD51 strain can be fermented by using a culture medium rich in organic matter, and the fermentation product has no toxic effect on Penaeus vannamei and crabs, can inhibit the infection of hepatopancreas ciliates on the Penaeus vannamei and the harm of Paramoeba on the crabs. Meanwhile, the microbial agent prepared by the JYD51 strain and Bacillus sphaericus JYQ7 can effectively control the harm of the hepatopancreas ciliates on the Penaeus vannamei and the Paramoeba on the crabs, purify the water environment for the growth of the Penaeus vannamei and the crabs, and improve the survival rate and product quality of the Penaeus vannamei and the crabs in aquaculture.
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