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No Thumbnail AvailableProjectAn improved traditional shrimp culture technique for increasing pond yield
Establishment of a Network of Aquaculture Centres in Asia
1985Also available in:
No results found.Shrimp farming has contributed about 5% of world shrimp production of approximately 1.7 m.m.t. in 1980. Statistics have indicated that shrimp supplies from the wild have been levelling off since 1978 largely due to over-fishing in many traditional shrimp fishing grounds. Due to increasing demand, an additional 200,000 m.t. needed by the year 1990 is expected to be largely satisfied through shrimp farming. In 1980, more than 84% of world shrimp production through aquafarming were derived from s even Asian countries of which Southeast Asia contributed approximately 45%. Most of the shrimp farms in the developing nations (80% in Southeast Asia) are still operating on the traditional or extensive method of farming. Such traditional farms (Fig. 1) are characterized by low stocking densities (e.g. 5,000/ha) and hence low yield ranging between 100 to 300 kg/ha/yr, irregular pond size and shape, relatively low technical management inputs as well as comparatively small investment. Because of h igh market price, such traditional practices are still commercially viable to small-scale shrimp growers despite low pond yields. Shrimp yields in ponds can be_increased by application of modern farming techniques such as intensification of culture operation by regularization of pond size, increasing stocking rate, employment of aeration (Fig. 2), application of formulated feed, etc. This will mean a considerable increase of financial and technological inputs, which most small farmers in the d eveloping countries may be able to afford. -
Book (stand-alone)Promotion of Small-scale Shrimp and Prawn Hatcheries in India and Bangladesh - BOBP/REP/66 1994
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No results found.The shrimp and prawn culture industries in India and Bangladesh still depend on wild fry. However, expanding production and the trend towards intensification, especially in India, will require the development of hatchery industries in these countries. Since the private sector is likely to be the engine for this development, BOBP undertook activities to transfer smallscale hatchery technology as directly as possible to this sector. In India, this took the form of training small-scale entrepr eneurs in tiger shrimp hatchery technology and providing financial support to the Government of West Bengal for the construction of a demonstration hatchery. Of eight trainees in India, one has set up a shrimp hatchery. The shrimp/prawn hatchery in West Bengal was completed, but not put into production. In Bangladesh, a small-scale demonstration freshwater prawn hatchery was set up in Chittagong District. A new hatchery technology, using brine and a simple recirculating biofilter, was found to be feasible. Both government and private sector participants were trained in the hatchery. Direct assistance in the form of training and equipment was given to four private groups. Three of them completed prawn hatchery construction by the end of 1993 and one of them went into production. -
No Thumbnail AvailableProjectShrimp hatchery design, operation and management. Training manual
Establishment of a Network of Aquaculture Centres in Asia
1985Also available in:
No results found.Shrimp is a valuable aquatic food resource high in protein and commands good export markets/ It has become the main target commodity for aquafarming in recent years. Traditionally, shrimp fry are trapped and held in ponds and later collected by shrimp gatherers for stocking in grow-out ponds. With increasing demand for shrimp, supply of wild fry for the increasing number of shrimp farms has become insufficient and inconsistent. The breakthrough in the completion of the life cycle of commercial ly important shrimps in captivity, such as the tiger shrimp (Penaeus monodon), the Japanese kuruma ebi (P. japonicus), the eastern shrimp (P. orientalis) and the banana shrimp (P. indicus or P. merguiensis), has greatly enhanced mass production of shrimp fry under hatchery conditions. The excellent growth performance of these hatchery-bred fry in grow-out ponds strongly shows that the shrimp hatchery can answer the industry needs for ample supply of shrimp fry for farming. From many years of a ccumulated experience and research findings, the success of a shrimp hatchery depends on: the choice of a suitable site effectiveness and efficiency of the hatchery design experience of hatchery technicians efficiency of operational management
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