A Report on the Hepatopancreatic Microsporidiosis Caused by Enterocytozoon hepatopenaei (EHP) in Penaeus vannamei (Pacific White Shrimp) Farms in Thiruvallur District, Tamilnadu, India
Journal Title: International Journal of Current Microbiology and Applied Sciences (IJCMAS) - Year 2017, Vol 6, Issue 6
Abstract
Disease incidence is the most impeding factor in the development of shrimp aquaculture industry. Most of the disease incidence in shrimp aquaculture is attributed to viral pathogens. But more recently Enterocytozoon hepatopenaei (EHP), a microsporidian parasite, has emerged as a serious pathogen reported to be associated with white faecal syndrome (WFS) and retarded growth which is referred as hepatopancreatic microsporidiosis in cultured pacific white leg shrimp (P. vanammei) in many of the shrimp growing countries of Asia. In the present study, it is reported that the prevalence hepatopancreatic microsporidiosis in the P. vannamei shrimp farms in Thiruvallur district. A preliminary study was conducted for screening EHP with a total number of 54 samples comprising of shrimp’s hepatopancreas, post larvae, faecal matter and soil by a nested polymerase chain reaction assay. The results showed that 10 samples were positive for EHP either in the first step or in the second (nested) step PCR with the prevalence of 18.51%. This report alerts the shrimp farmers to undertake suitable management measures to prevent the spread of hepatopancreatic microsporidiosis and to avoid the disease in subsequent culture operations to improve the production and sustainability of shrimp culture.
Authors and Affiliations
M. Giridharan, A. Uma
Keywords
Related Articles
- EP ID EP570937
- DOI 10.20546/ijcmas.2017.606.017
- Views 64
- Downloads 0
Flowering Stage Drought Stress Resistance in Upland Rice in Relation to Physiological, Biochemical Traits and Yield
Drought stress at flowering stage in upland rice is most damaging cause of yield reduction. Impact of drought stress at flowering stage on morphological, physiological and biochemical traits, yield and yield components a...
Potential Applications of Stem Cells in Livestock Production
Stem cells have properties of self-renewal and differentiation. Stem cells can be acquired from both embryo and adult body organs. They have also got the ability to differentiate (potency) and to take over the characteri...
Study on Production Potential of Rice through Front Line Demonstration in Deoria District of Uttar Pradesh, India
The development of the agriculture is primarily the application of the science and technology by making the best use of available resources; one of the major constraints of traditionally rice growing varieties is low pro...
Egg Parasitic Fungus, Engyodontium aranearum with other Biocontrol Agents, Organic Amendment and Carbofuran for the Management of Meloidogyne incognita on Tomato
The effect of Engyodontium aranearum, a nematode egg parasitic fungus, alone and along with other biocontrol agents, organic amendment and carbofuran was evaluated in pot culture infested with Meloidogyne incognita on to...
Evaluation of Selected Bio Agents, Plant Extracts and Fungicides for the Management of Alternaria Leaf Blight of Indian Mustard
A field experiment was conducted at the research plot of the Department of Plant Pathology, SHIATS, Allahabad, U.P. during the Rabi season of 2013-14 to evaluate selected bioagents, plant extracts and fungicides for the...