Haematology of Fenneropenaeus indicus in response to environmental alterations and microbial infections

Dyuthi/Manakin Repository

Haematology of Fenneropenaeus indicus in response to environmental alterations and microbial infections

Show simple item record

dc.contributor.author Selven, S
dc.contributor.author Dr. Rosamma, Philip
dc.date.accessioned 2012-09-14T06:39:29Z
dc.date.available 2012-09-14T06:39:29Z
dc.date.issued 2008-05
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/3012
dc.description.abstract Aquaculture has developed to become one of the fastest growing food producing sectors in the world.Today India is one among the major shrimp producing countries in the world.There are extensive and intensive shrimp culture practices. In extensive shrimp culture, shrimps are stocked at low densities (< 25 PLs m'2)in large ponds or tidal enclosures in which little or no management is exercised or possible. Farmers depend almost entirely on natural conditions in extensive cultures. Intensive shrimp culture is carried out in high densities (>200 PLs m'2). Much of the world shrimp production still comes from extensive culture.There is a growing demand for fish and marine products for human and animal consumption. This demand has led to rapid growth of aquaculture, which some times has been accompanied by ecological impacts and economic loss due to diseases. The expansion of shrimp culture always accompanies local environmental degradation and occurrence of diseases.Disease out breaks is recognised as a significant constraint to aquaculture production. Environmental factors, water quality, pollution due to effluent discharge and pathogenic invasion due to vertical and horizontal transmission are the main causes of shrimp disease out breaks. Nutritional imbalance, toxicant and other pollutants also account for the onset of diseases. pathogens include viruses, bacteria, fungi and parasites.Viruses are the most economically significant pathogens of the cultured shrimps world wide. Disease control in shrimp aquaculture should focus first on preventive measures for eliminating disease promoting factors.ln order to design prophylactic and proactive measures against shrimp diseases, it is mandatory to understand the immune make up of the cultivable species, its optimum culture conditions and the physico chemical parameters of the rearing environment. It has been proven beyond doubt that disease is an end result of complex interaction of environment, pathogen and the host animal. The aquatic environment is abounded with infectious microbes.The transmission of disease in this environment is extremely easy, especially under dense, culture conditions. Therefore, a better understanding of the immune responses of the cultured animal in relation to its environmental alterations and microbial invasions is essential indevising strategic measures against aquaculture loss due to diseases. This study accentuate the importance of proper and regular health monitoring in shrimps employing the most appropriate haematological biomarkers for application of suitable prophylactic measures in order to avoid serious health hazards in shrimp culture systems. en_US
dc.language.iso en en_US
dc.publisher Cochin University of Science and Technology en_US
dc.subject Shrimp en_US
dc.subject Haematology en_US
dc.subject Microbial infections en_US
dc.subject Environmental alterations en_US
dc.subject Immune system en_US
dc.subject Cellular Immunity en_US
dc.subject Humoral immunity en_US
dc.subject Antioxidant defence system en_US
dc.subject Haemocyte protein en_US
dc.subject Super oxide anion (NBT reduction) assay en_US
dc.subject Phenoloxidase activity en_US
dc.subject Vibrio harveyi en_US
dc.subject Pathogenicity study en_US
dc.subject WSSV en_US
dc.subject Metal accumulation en_US
dc.title Haematology of Fenneropenaeus indicus in response to environmental alterations and microbial infections en_US
dc.type Thesis en_US


Files in this item

Files Size Format View Description
Dyuthi-T0991.pdf 20.82Mb PDF View/Open PDF

This item appears in the following Collection(s)

Show simple item record

Search Dyuthi


Advanced Search

Browse

My Account