Talking about the advantages of farming prawns, shrimp freshwater types this one has a huge potential. Evident from the demand of prawns, both domestic and from abroad is increasing. Prawns, is one of the freshwater commodity pretty good future because in addition to the selling price is higher than other freshwater fish can also be marketed to the needs of domestic and foreign, it is characterized by the demand for exports to various countries such as Japan and some European countries . in other words prawns has high economic value and potentially gain if developed.
Raising prawns can be done in a pool or pond land. Currently prawn rearing activity has expanded every aspect of the area, covering West Java, Central Java, East Java and Bali. To support the success of / cultivation, the need for technology that suits your needs and scale businesses owned by farmers.
Stages start farming prawns:
1. LOCATION CULTURE
Aquaculture development planning container must meet the requirements, among others; flooding and pollution free area, sandy clay soil types, ponds made at an altitude of 0-700 meters above sea level.
The water is available throughout the year, free of pollution, water circulation must be good, pollution-free, pollution-free. The recommended water discharge 0.5-1 liters per second to an extent 300-1000 m2.
2. MATERIALS AND EQUIPMENT
As cultivation in ponds in general, commonly used equipment, among others; conveyance seed, dustpan, bucket, seser, scales, fine sieves of cloth, hoe.
3. WATER MANAGEMENT
Good water circulation plays an important role in the implementation of the enlargement of prawns. Should pond water should flow. For media pool maintenance with no flowing water quality tends to decrease after one month maintenance period. To fix can be as much as 30-50% water replacement with new water.
C, with a pH of 6.5 to 8.5. Oksigen ° optimum temperature required is 28-30 dissolved minimum is 4 ppm, also required a minimum of 52 ppm Ca and salinity 0-5 ppt.
4. PEST AND DISEASE PREVENTION
The presence of pests and diseases was determined by visual examination conducted against pests both predators and competitors.
Pests that often interfere with pond maintenance is wild fish entering accidentally like catfish, catfish and others. To prevent the entry of pests that prey on the door needs to be made sieve income and expenditure of the pool water be made hapa nets with a mesh size of 0.2 mm.
In the enlargement process required medical examination carried out as follows:
a) Sampling for health testing prawns (Macrobrachium rosenbergii) is done randomly by the number of shrimp in accordance with the need for visual or microscopic observation.
b) Visual observations made for the examination of the symptoms of disease and perfection morphology prawns (Macrobrachium rosenbergii).
c) microscopic observations conducted for inspection bodies of pathogens (parasites, fungi, viruses and bacteria) in the laboratory.
Disease that often attacks are caused by shrimp mossy water depth in an inadequate with poor circulation, to overcome the problem with the water circulation can be installed windmills.
5. HARVEST PERIOD
The prawns can be harvested after 4 months, 6 months, or even more, according to the size required by konsumem. shrimp prawns can usually go on sale after reaching ukuran 20-25 grams / tail, but the larger the size of shrimp price is also more expensive .
Similarly, on the benefits of aquaculture prawns, prawn cultivation stages. May be useful.
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