Attention should be paid to the prevention and treatment of shrimp liver necrosis in high temperature season.

(agricultural Wealth Network) with the arrival of high temperature, shrimp has entered a stage of rapid growth, and there are more and more harmful bacteria and organic pollutants in shrimp ponds. The liver of shrimp bears a great detoxification function at this time. Transformation and detoxification of all kinds of toxic things, coupled with the growth and reproduction of harmful bacteria, the liver of shrimp will be invaded and infected in different ways. For example, such as shrimp liver swelling, whitening, and even serious atrophy, erosion and so on. If we do not find out as soon as possible, when the liver lesion is obvious, the loss is usually quite heavy.

Comparison between normal and abnormal liver

The normal liver is yellowish brown, with a white membrane under some parts; abnormal redness, blackness, swelling, or atrophy and erosion, and soft and inelastic liver tissue. Seen under the microscope, the liver cells are unevenly arranged and some or most of them are fatty.

Causes of liver disease in shrimp

During the period of high temperature, the shrimp pond water changes greatly with the temperature, grows fast and eats more feed, so the accumulation of organic matter in the pond, the rapid reproduction of bacteria, the decline of shrimp resistance to form bacterial infection, resulting in liver diseases. The onset of the disease, shrimp food and activities are normal, slow growth will slow down, do not shell for a long time, after a certain period of time, there will be disease.

Principles of prevention and treatment of shrimp liver disease

Because many drugs are decomposed and transformed through shrimp liver, when treating or preventing shrimp liver disease, we must choose drugs that have little effect on the liver.

Treatment of Shrimp liver Diseases

The main results are as follows: 1. Use the bottom of the pond to clear 5 Mu of each bag, dry it directly, treat the pond to pollute the bottom, and then use the culture medium of Bacillus (in the case of excessive water color) to purify the water, transform and decompose the harmful substances.

2. Soak Jinfang Hugan Bao (200 jin per bag) and Weime (400 jin per bag) for 3 hours, then spray it evenly on the feed surface, then seal the feed for several hours, and then feed it for effective treatment of liver disease. At the same time, the drug ingredients are also fully utilized, even feeding 5 Mel for 7 days. The situation is serious, you can use maintenance and exemption (2 mu per bag) or Jin Fang Hugan Bao (1 mu per bag) after soaking in water for 2 hours, the whole pool is evenly sprinkled, the effect is also better.

3. If the liver necrosis of the shrimp is more serious, the shrimp does not eat much food at this time, and the effect of internal administration is often not good. Jinfang Huganbao can be directly sprinkled according to 2 mu / bag of water, and the liver of shrimp can be recovered effectively and quickly. Reduce the mortality rate.

Shrimp liver is one of the most important detoxification organs, so we should pay great attention to shrimp liver prevention during high temperature culture. It is recommended to use beneficial microorganisms such as Bacillus, yogurt freeze-drying agent, pond bottom clear, bottom Jusujiean and so on every 10 to 15 days to purify pond water and sediment, combined with oral administration of Jinfang Huanganbao, Weimian, Jinweian, etc.