Mr. Bancha Sukkaew, Director-General of the Fisheries Department, revealed that the current hot weather has caused the water temperature to rise. Facilitates the rapid growth of many strains of bacteria. Especially the Vibrio parahaemolyticus species. that can create toxins (VpAHPND) causing acute liver failure or urgent shrimp death disease (AHPND/EMS) that causes severe damage to marine shrimp production. “Factors affecting the occurrence of this disease include higher water temperatures. feeding large quantities The water quality is not suitable. Resulting in a plankton bloom. The amount of ammonia and nitrite in the water is high. Shrimps are stressed and weak. The immune system is reduced and there is a high risk of developing this disease,” said the Director-General of the Fisheries Department. The infection is mostly found in white vannamei shrimp and black tiger shrimp at the post-slava stage (PL), 30-35 days after the shrimp are released into clay ponds. Characteristics of shrimp with acute liver failure Atrophy and death of the hepatic and pancreatic ducts will occur. Sometimes black lines can be seen around the liver and pancreas in shrimp. The intestines have no food. Shrimp shells are soft, shrimp grow slowly and swim sluggishly. Acute liver failure in shrimp can be transmitted through water and eating contaminated food. Including the eating of each other by Bancha Sukkaew shrimp in order to avoid and prevent damage from this disease during the summer. Mr. Bancha recommends that farmers practice As follows…when shrimp are found with abnormal symptoms or have died for unknown reasons. Please notify local Fisheries Department officials. Or notify through the sick aquatic animal reporting system, KPS.Sor.1, according to the QR-code within 24 hours so that officials can enter the farm and collect shrimp samples. Sent to detect the cause of the disease and give initial advice. Do not move shrimp that have died abnormally from the pond and farm. To prevent the spread of germs…do not transfer water from ponds with abnormally dead shrimp outside the farm while waiting for test results. In the case of receiving test results confirming that shrimp are sick from this disease Water must be disinfected using 200 grams of chlorine per 1 ton of water (200 PPM). Soak for at least 24-48 hours to ensure that there is no chlorine remaining. Before releasing into the environment…clean the equipment used in the pond where the shrimp died with a disinfectant, such as 200 grams of chlorine per 1 ton of water (200 PPM), soak for at least 30 minutes, then rinse thoroughly. Plain water “Shrimp farmers should carefully observe and take care of their shrimp closely, especially during very hot weather. Control the proper amount of food. Or it may be mixed with immune stimulating substances such as vitamin C, beta-glucan, probiotic microorganisms, etc. that have been registered with the Fisheries Department. To strengthen the shrimp’s immune system. However, if shrimp are found to be sick or have abnormal symptoms or death of unknown causes You can inform or request advice at the Provincial Fisheries Office. or research center Aquatic animals of the Fisheries Department in the area or the Aquatic Animal Health Research and Development Division, Bangkok, Tel. 0-2579-4122,” said the Director-General of the Fisheries Department. Click to read more “Agricultural News”
