In recent years, the breeding area and breeding density of yellow jaw fish have been expanding, however, the incidence of diseases in the breeding process of yellow jaw fish is also increasing year by year, and the more common ones are ascites disease, hepatobiliary disease, parasitic disease, water mold disease, enteritis disease, etc. The occurrence of diseases also seriously affects the success rate of yellow jaw fish breeding. Therefore, we must strengthen the prevention and control of diseases and minimize the losses caused by diseases.
The following is the disease of "ascites disease" of yellow jaw fish to sort out the prevention and control ideas for everyone, so that everyone can achieve "food at home, and do not panic".
Ascites disease of yellow jaw fish is more difficult to treat, and it can be concluded that the cause of ascites disease is mainly due to the large density of aquaculture and the water quality is not well managed. Before the epidemic, there was no good protection work, the fish body's immunity declined, and the bait in the fish pond was not cleaned up in time, resulting in thick silt and bacterial infection. In the end, ascites disease in yellow jaw fish is caused by bacterial infection, similar to hemorrhagic edema disease.
Diseased fish will swim alone and spin in the surface layer of the water body, reduce feeding, motor disorders, redness at the base of the pectoral fin and fin, abdominal expansion, redness and swelling, increased mucus on the surface of the body, unplanned will find a large amount of blood in the abdominal cavity of the fish body, muscle, stomach and intestine congestion, liver gray and necrotic points. Yellow jaw fish suffer from ascites disease and are weak and highly susceptible to parasitic infections, secondary to parasitic diseases.
In order to reduce unnecessary losses, breeding friends still have to do a good job in the early stage of prevention:
1. Maintain a good growth environment
Pay close attention to the water quality of the pond, appropriately reduce the stocking density of the yellow jaw fish, regularly do the pond clearance and dredging work, and regularly sprinkle microbial agents to regulate the water quality. The dissolved oxygen content is maintained above 5mg/L, and a good water quality is maintained, and it is difficult for harmful bacteria to breed in large quantities.
2. Regular disinfection to inhibit harmful bacteria
Regular disinfectant disinfection of water bodies, while mixing eucalyptus essential oil, can not only inhibit germs, but also drive away parasites.
3. The disease enters from the mouth and is reasonably fed
Usually pay attention to weather changes, rainy weather reasonable control of materials, to avoid feed surplus, pollution of water quality. Under normal weather conditions, it is also necessary to pay attention to the proportion of morning and evening feeding, reduce the amount of feeding at night, and increase the amount of morning feeding. It is recommended to take long-term internal liver and intestine bile acids to enhance the physique and anti-stress ability of yellow jaw fish and reduce the damage of weather changes to fish. The good function of the fish body can reduce the incidence of diseases such as ascites disease.
In the process of breeding yellow jaw fish, the fish's physique is good, the immunity is strong, the incidence is less; the water environment is stable, and the pathogen is reduced accordingly, so in the daily management, we must pay attention to enhancing the physique of the fish, protecting the water environment, and doing a good job in prevention, so as to reduce the incidence of yellow jaw fish diseases and reduce unnecessary losses.