Method for preventing and treating prawn culture vibriosis by using marine protozoa trachelostylidae

Abstract

The invention discloses a method for preventing and treating prawn culture vibriosis by using marine protozoa trachelostylidae, and relates to the technical field of biological prevention and treatment. The method comprises seawater sampling, protozoa population separation, bacterial clearance rate comparison, biological safety analysis, biological identification, clearance mechanism analysis and vibrio prevention application. According to the method disclosed by the invention, the Trachelostyla pediculiformis PW06 obtained by screening is separated from culture seawater of the Penaeus vannamei Boone, can swallow escherichia coli, vibrio, staphylococcus aureus and aeromonas hydrophila, and is low in environmental biotoxicity and high in biological safety. After the PW06 is cultured, the PW06 is added into feeding seawater of mariculture animals, so that the death rate of the animals infected by the vibrios can be effectively reduced. The problem of food safety caused by large-scale use of antibiotic drugs due to frequent occurrence of aquaculture diseases and residues of the drugs in aquatic animal bodies is widely concerned, and good economic benefits and ecological benefits can be obtained when PW06 is developed into a natural pathogenic bacterium resisting preparation, so that the natural pathogenic bacterium resisting preparation has a wide application prospect.

Description

Technical field [0001] The present invention belongs to the field of biological control technology, and more particularly to a method of preventing treatment of shrimps with shrimp in terms of shrimp diseases using ocean primary animal. Background technique [0002] At present, my country is the world's first aquaculture country, accounting for about 70% of the total annual output of world culture. With the rapid development of the intensive aquaculture industry, the infection and communication of the disease is a major factor in restricting the development of the industry, such as the disease caused by pathogenic bacteria (eulme hydrophobica, etc.). The lethality rate causes huge economic losses. In order to control the disease, a large number of antibiotic drugs is used in a large number of antibiotic drugs, and the hydrocarbon content in the hydrants (water and sediments) is highly high, and the sediments can be as high as 285 mg / kg. The abuse of antibiotics is increasingly ...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of method that utilizes marine protozoa acupoints to prevent and treat vibriosis in prawn culture, to solve the existing problem: the abuse of antibiotics is becoming increasingly apparent to the harm of aquaculture to humans

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