Symptoms and control methods of common diseases of Sturgeon

Sturgeon is one of the most primitive vertebrates, which has high research value and economic value. Sturgeon was cultured in China at the end of the last century. After more than ten years of development, Sturgeon also has a certain breeding scale. With the improvement of intensive culture, the disease is accompanied by the rise of diseases, which seriously harm the economic benefits of farmers and are disadvantageous to the reproduction of Sturgeon culture. The following editor brings you some common diseases and prevention methods of Sturgeon in the process of Sturgeon culture.

1. Septicemia

Septicaemia is a bacterial disease, the pathogen is hydrophilic unit cell, this pathogen is widely distributed in natural water, so it is a very common disease in Sturgeon culture. During the onset of the disease, the action of the diseased fish was slow, the food intake was weakened, the body surface parts such as abdomen, mouth and fin were bleeding, the anus was red and inflamed, and the color of Gill was lighter. After dissecting the diseased fish, it was found that the liver was enlarged, the intestines and stomach was inflamed, accompanied by foamy mucus.

Prevention and control methods: strengthen water quality management, timely inject new water or change water, choose fresh feed when feeding, should not feed spoiled feed, and remove residual bait and excreta in time when high temperature, so as not to produce toxic substances by fermentation. Disinfect the water body regularly, add some antibiotics and vitamins to the feed, sprinkle chlorine dioxide in the whole pool when spoilage, and then feed with enrofloxacin 2.0g.

2. Enteritis

Enteritis is also a bacterial disease, the pathogen is Aeromonas punctata, the sick fish slow action, loss of appetite, the diseased fish out of the examination, will find that the hilum of the liver is red and swollen, gently press the abdomen, there will be yellow mucus outflow. After dissection, it will be found that the intestines and stomach are congested and inflamed, accumulating yellow mucus.

Prevention and control methods: keep the water quality clear, and the freshness of natural bait must be ensured when feeding. Artificial feed is recommended to choose full-price feed with moderate particle size, and feed it on a regular basis. During the onset of the disease, the whole pool was disinfected with bromochlorohydantoin, and then oxytetracycline was added to the feed.

3. Gill rot disease

Gill rot disease is a disease caused by Radius columnar. When it comes to disease, the diseased fish moves slowly, the color of the body surface is light, the color of the Gill filaments in the gills is white, there is no blood color, the disease is seriously rotten in mass, and the soil is mixed into colloidal mucus. It mainly harms juvenile fish and middle-aged fish.

Prevention and control methods: keep the water quality clear, sprinkle lime in the whole pond every half a month, sprinkle chlorine dioxide when the disease occurs, soak the diseased fish in salt water for a period of time, and add oxytetracycline bait to feed, all can be cured.

4. Rotifer disease

Rotifer is a kind of parasitic disease, the pathogen is some parasites of the genus Trichoderma, when the disease occurs, the color of the body surface of the diseased fish is pale and dull, the physique is thin, and the swimming is weak and slow. if you open its Gill, you will find that the Gill is dark red and there is more mucus. Through microscopic examination, it will be found that there are a large number of rotifers parasitic. The main harm to seedlings, often gathered in the fish Gill gap, damage the fish Gill, resulting in dyspnea, serious death.

Prevention and treatment: when the disease occurs, the diseased fish will be soaked in low concentration saline for 30-60 minutes, and then put into the running water area after soaking, the condition can be improved or cured.

The above are the symptoms and control methods of common diseases of Sturgeon. I hope I can help you. If you want to know more about Sturgeon culture, please follow us.