Microecologic preparation for inhibiting vibrio in litopenaeus vannamei culture as well as preparation and application

Abstract

The invention provides a microecologic preparation for inhibiting vibrio in litopenaeus vannamei culture as well as preparation and application, and relates to aquaculture. The microecologic preparation comprises at least one of bacillus safensis and bacillus pumilus, and at least one of lactobacillus plantarum and lactobacillus plantarum; when the microecologic preparation is in a form of microbial bacteria solution, the preparation method comprises the following step: mixing a bacillus safensis fermented solution, a bacillus pumilus fermented solution, a lactobacillus plantarum fermented solution and a lactobacillus plantarum fermented solution; at least one of vitamin C, fructo-oligosaccharide, mannitol, and the like is added as a protecting agent to the mixture. The microecologic preparation is applicable to the preparation of preparations for promoting the growing of litopenaeus vannamei, improving the immunity and disease resistance of the litopenaeus vannamei, preventing and controlling the diseases of the litopenaeus vannamei, increasing the survival rate, purifying culture water quality, and particularly preventing and controlling intestinal tract thickening, red-leg disease, eye-rot disease and white spot syndrome virus of the litopenaeus vannamei. The microecologic preparation is applicable to preparation of veterinary drugs, feed additives or water purifiers, and the like.

Description

technical field [0001] The invention relates to aquaculture, in particular to a microecological preparation for inhibiting Vibrio in Litopenaeus vannamei culture, a preparation method and application thereof. Background technique [0002] Since 2003, with the promotion of high-density farming mode, my country's shrimp farming industry has entered a period of rapid development. In 2006, the total amount of shrimp farming in my country was 1.24 million tons, accounting for 39.2% of the global farmed shrimp production, and it has remained the world's first for many years . However, the rapid development of intensive and high-density aquaculture has seriously damaged the ecological environment of aquaculture, and also produced a series of negative effects, including waste of feed resources, environmental deterioration, serious diseases, germplasm degradation, drug residues, etc. , especially disease problems are becoming more and more serious. Shrimp white spot virus, taura vir...

AI Technical Summary

Problems solved by technology

In the high temperature season of spring and summer every year, various acute infectious diseases often break out, such as nerve necrosis virus, iridescent virus, vibrio and other pathogenic bacteria, which cause a large number of deaths of shrimp seedlings and juvenile shrimp, bringing huge economic losses to farmers. , seriously restricting the development of the shrimp farming industry

According to statistics, the annual mortality rate of prawn seedlings is as high as 80%. At present, in order to maintain the breeding density and prevent disease outbreaks in the process of prawn farming, various antibiotics are blindly used in production, such as chloramphenicol, oxytetracycline, furazolidone, etc. As a result, serious drug residues in the body of farmed animals have brought potential harm to the health of farmed animals and humans.

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