The First Attack on the Penaeus Vanmamei is coming. Are you Ready?

The First Attack on the Penaeus Vanmamei is coming. Are you Ready?

As August is about to enter, a new batch of vannamei shrimp farming begins to release seedlings. Generally, after 18-22 days of shrimp farming, the shrimp will enter the liver transfer stage, and the hepatopancreas will be in a period of rapid development. The so-called liver transfer stage is actually an adaptive transition stage during the development process of the shrimp's hepatopancreas from planktonic feed to artificial compound feed. At this time, if you observe the shrimp with the naked eye, you will find that a white film gradually surrounds the liver. Pancreas, black and white gradually become clearer, forming an outline.

Precise feeding to prevent Vibrio infection

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.

Mix liver protection products to reduce liver

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.

Maintain water stability and reduce

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. 

Experience summary

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;