Prevention and treatment of common diseases in mackerel culture

Sinonovacula constricta, called Sinonovacula constricta, is a soft shellfish that lives in shallow waters. It is a common seafood food on our dining table. With the improvement of living standards, the market demand continues to expand, while the wild ones can no longer meet the demand. Therefore, many areas have begun artificial breeding to meet supply and demand. However, in breeding, due to improper management, resulting in the threat of disease, resulting in greater losses, so what diseases are there in breeding? How to prevent and cure it? Let's take a look at the pro-farm network.

1. Ulcer disease

Canker mainly occurs on larval larvae. It is a bacterial disease caused by Vibrio anguillarum and Vibrio alginolyticus. It may occur in all stages of seedling cultivation. Seedlings will sink to the bottom after infection, and their activity and food intake will decrease. In the later stage of the disease, it will suddenly lead to the death of a large number of seedlings, causing huge losses to farmers.

Prevention and treatment: it is caused by bacterial infection. First of all, it is necessary to ensure that the water quality is clean, disinfect and sterilize regularly to prevent the reproduction and growth of pathogenic bacteria in the water. It is found that the diseased seedlings should be fished out and discarded in time to prevent further infection and be careful not to result in algae contaminated by pathogenic bacteria when feeding. After the onset of the disease, 100 grams of compound streptomycin and chloramphenicol were sprinkled in the water body for three or five days in a row, and then it could be cured.

2. Punctate necrosis

Punctate necrosis is also a bacterial disease, caused by an unknown bacilli infection. It occurs at all stages of the growth of oysters and has a very high mortality rate. The characteristics were not obvious in the early stage, but there was some necrotic tissue on the dying mackerel, and it was constantly spreading in other parts. The autopsy meeting found that the interior was often accompanied by a large number of bacilli, the digestive glands were pale, the shell was open, and gradually died.

Prevention and treatment methods: for the time being, there is no specific cure for the disease, only prevention, strengthen the management of water quality and bait, keep the water quality clean and fresh, isolate and destroy the disease in time after the disease is found, and disinfect and sterilize the water immediately.

3. Paeoniasis

Parasitosis is a kind of parasitic disease, which is caused by the parasitosis of sea water. It is one of the most serious diseases. It mainly affects the fish for more than a year and can occur all the year round. However, the mortality rate is very high in the period of high temperature in summer and autumn, and the lower temperature in spring and winter will occur and generally will not cause death. When the disease occurs, the seeds grow slowly or stop growing, gradually lose weight, the development of the gonads is also hindered, and in severe cases, the shell opens and dies.

Prevention and control methods: the seedlings without infection should be selected when breeding, and the fixation should be thoroughly cleaned when the larvae are cultivated, while the old oysters should be harvested and eliminated in time, and the culture density should not be too high. Raising it in areas with low salinity can inhibit the development of the disease to a certain extent.

The above are the prevention and control methods of common diseases in mackerel breeding brought by the pro-agricultural network. This is the end of the introduction of the disease content of the mackerel. If you want to know more, please pay attention to the pro-agricultural network.