Prevention and treatment of crab tremor disease

Symptoms of crab trembling disease

In the early stage of tremor disease, the feeding of the diseased crab is reduced or not, it is difficult to molt, and the activity ability is weakened or in a coma. As the course of the disease develops, the knuckles turn red and continue to spread upward. The foot is easy to fall off, the claw foot is weak, the foot trembles continuously, the mouth is foamy, and cannot crawl, so it is called "trembling disease". Sometimes it can be seen that the sick crab steps together, huddles in the head and chest, or stretches the tip of its claws to the ground. if the foot is straightened, and then retracted immediately after releasing the hand, it is also known as "ring leg disease". Dissecting the crab body, it can be seen that the body is stagnant, muscle atrophy, Gill filament black or yellow, triangular membrane edema. And show pink, stomach and intestines have no food.

Prevention and treatment of crab tremor disease

Prevention should be given priority to, prevention is more important than treatment, and prevention should be combined with ecological disease prevention, supplemented by drug treatment, and attention should be paid to improving the quality of culture environment. The diseased crabs were treated with external disinfection and internal administration, with 0.3mg/ L dibromohydantoin and other disinfectants, internal administration of Crab Diling, etc., for 7 days as a course of treatment, and the whole pool was sprinkled with quicklime to adjust the pool water into weak alkalinity.