| Acute hepatopancreatic necrosis disease |
| Paper ID : 1103-ICIAQUA |
| Authors |
|
mahdiyeh gharabaghi *, mehdi soltani , Department of Aquatic Animal Health Faculty of Veterinary Medicine University of Tehran Tehran, Iran |
| Abstract |
| Acute hepatopancreatic necrosis disease(AHPND) is a severe disease in shrimp farms and specifically has caused great economic losses and adversely affected the shrimp industry. AHPND is a severe disease in shrimps that are caused by Vibrio parahaemolyticus with special plasmid-encoded with a toxin genome. The identification of risk factors is necessary to prevent and control AHPND effectively. risk factors at the farm level are : Large farm size, using the sun-dried sediment method, farm location ,nearby other farms, and using a water source already affected by AHPND. To reduce the effect of AHPND, farmers should apply effective methods to manage wild animals such as using a grid or net to cover the pond, combined with improved biosecurity. Bioassay challenges using immersion, reverse gavage and per os (feeding) treatments have been shown to induce the pathology characteristics of AHPND in experimentally infected shrimp. Moreover, a number of polymerase chain reaction (PCR) methods have been found to facilitate early detection of the disease. However, non-V. parahaemolyticus species close to Vibrio harveyi, Vibrio owensii and Vibrio campbellii have recently been identified as carrying pVA1-like plasmids, signifying that these plasmids are capable of being transmitted to different Vibrio species. AHPND is thus a threat and a serious concern for the aquaculture industry. |
| Keywords |
| Acute hepatopancreatic necrosis disease (AHPND). Shrimp culture. Management |
| Status: Abstract Accepted (Poster Presentation) |