| abstract |
The invention discloses a bacteriophage Bdellovibrio preparation for preventing grouper ulcers. Various pathogenic bacteria that can cause grouper ulcers are used as a variety of mixed live host bacteria to cultivate Bdellovibrio phages, and then filtered to remove unlysed bacteria. The host pathogenic bacteria obtains the Bdellovibrio phage seed solution, co-cultivates with various mixed inactivated host bacteria, and finally prepares it by freeze-drying. The invention also discloses the preparation method and application of the preparation. The preparation of the invention can be used by diluting and splashing, has a lysing effect on various pathogenic bacteria that cause grouper ulcers, effectively prevents the occurrence of grouper ulcers, and obviously reduces the incidence rate. The bacteriophage Bdellovibrio preparation can be used for marine animals, and the preparation has the advantages of environmental protection, safe use and high efficiency. |