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The First Attack on the Penaeus Vanmamei is coming. Are you Ready?  The liver-transfer stage of shrimp is very sensitive to changes in the external environment and has weak resistance. It is the most susceptible period to disease. A large number of farmed shrimps have problems at this stage. The liver-transfer stage has also become the first critical point in shrimp farming. Penaeus vannamei is a very simple aquatic animal with only a simple digestive system: stomach, hepatopancreas, and intestines. The hepatopancreas is the largest immune organ of Penaeus vannamei and has detoxification and detoxification functions. When the water environment is destroyed, the breeding environment deteriorates, and the burden on the hepatopancreas increases, symptoms such as damage to the hepatopancreas will appear, resulting in hepatomegaly, liver atrophy, erosion and other phenomena, which will lead to the death of Penaeus vannamei. Therefore, care during the liver transfer period is very important. Shrimp with a weak constitution have poor adaptability and will be very slow to pass the liver transfer period, while shrimps with a strong constitution will successfully pass the liver transfer period in advance. How to survive the first disaster of Penaeus vannamei?
It is difficult to control the feeding amount during the liver transfer period. If the feeding amount is insufficient, shrimps can easily ingest sediment and dead algae, and pathogenic bacteria can be infected through the mouth, causing disease. Even if bacterial disease does not occur, such shrimps often do not eat or eat poorly. In the future, they will eat much less food than normal shrimps, and their growth rate will be significantly slower. Overfeeding can easily cause water quality problems, increased burden on the liver, poor bottom environment, and excessive Vibrio! To prevent harmful bacteria from harming the liver and pancreas, sterilization and disinfection are essential. During the liver-transfer period, the shrimp's food intake changes from natural food to artificial food. Moreover, the shrimp's food intake will increase after the liver-transfer period, and the load on the hepatopancreas increases and is prone to disease (atrophy, redness, whiteness, swelling, necrosis, etc.). Use some liver-protecting products to reduce the accumulation of toxins, reduce and relieve the pressure on the liver, enhance detoxification and detoxification capabilities, and improve the shrimp's own immunity. The liver-transfer stage of shrimp is in the early stage of culture, and the water quality is unstable. Shrimp are prone to air bubble disease due to the sudden growth of algae. Air bubble disease will directly cause the shrimp to stop eating, the liver will shrink, and further develop liver necrosis or cause other diseases; the water quality in the early stage is also prone to occurrence. In algae damage, dissolved oxygen drops significantly at night after algae die, and ammonia nitrogen and other toxic and harmful substances increase. Hypoxia and toxic substances can also directly lead to liver disease. The liver transfer period of P. vannamei is the most important period in breeding. It promotes better liver transfer of P. vannamei, improves the survival rate of P. vannamei, ensures body health, and ensures greater profits!
During the liver transfer period, it is necessary to supplement the nutrients needed by the hepatopancreas, promote the development of liver cells, enhance the body's immune function, and help the shrimp transfer smoothly to the liver; regulate and repair the intestinal mucosa, enhance intestinal flexibility and toughness, and improve intestinal digestion and absorption. Function, effectively prevent symptoms such as mopping, broken joints, enteritis and white stool; |
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