Pathogens: Microsporidia is a class of tiny sporeworms. The spores are pear-shaped, oval-shaped, Eggplant-shaped, etc. The spores are 2-10 microns in length. The internal structure must be seen under the electron microscope. Popularity: Microsporidia mainly parasitizes in the muscles of Penaeus vannamei, Macrobrachium rosenbergii, and crabs, and sometimes it also parasitizes in the gonads, heart, nerves, etc. Severe disease can cause the death of the body, or even a large number of deaths. It occurs in both the north and the south of China. Symptoms: There are no obvious symptoms early in the disease. If microsporidium parasites in the muscles, it gradually forms white spots, white spots gradually expand, increase, and even the body muscles become white, cloudy, opaque, muscle tissue becomes soft, loses elasticity, grows slowly, and bouncing. When microsporidia parasitizes in the gonad, the gonads become swollen and white and lose their reproductive ability. In short, what tissue the microspore parasite inhabits, where it forms a white cyst, which continuously expands, increases, destroys the tissue, and finally the body dies. Diagnosis: Initial diagnosis based on symptoms and prevalence. The lesion must be taken and examined and diagnosed with a microscope. Prevention: as a breeding broodstock, crabs must be strictly quarantined, must use robust shrimp, crabs for breeding purposes. The water must go through sedimentation and filtration; in the areas where the disease is severe, the water in the reservoir must be disinfected before being purified and optimized by living organisms. Feeding nutrients comprehensively and adding immune activators such as photosynthetic bacteria, Bacillus, and beta-glucan to improve shrimp and crab resistance. Strengthen feeding and management, adopt biological, physical, chemical and other comprehensive means to maintain excellent water quality. Found that the sick body should be removed in a timely manner cooked or buried in a place away from the pond and water. Ponds and used tools must be disinfected. Other Dried Vegetables,Air Dried Egg Dice,Dehydrated Chrysanthemum,Dehydrated Jasmine Tea,dehydrated green onions Jiangsu Tiankang Food Co., Ltd. , https://www.tiankangfood.com