Shrimp Farming Systems
There are three different farming methods used for Macrobrachium rosenbergii, the most commonly farmed variety of shrimp.
Extensive Freshwater Shrimp Culture
Extensive freshwater shrimp culture generally involves growing in ponds. There is little or no control over water quality. The growth of shrimps is not normally monitored, supplemental feeding is not supplied. It reflects the most natural and least scientific or industrial production of freshwater shrimps. Shrimp productivity is in the about of 500kg/ha/yr.
Semi-Intensive Freshwater Shrimp Culture
Semi-intensive shrimp farming systems involve stocking juvenile freshwater prawns in ponds, and result in a range of productivity of more than 500 kg/ha/yr. External fertilisation is applied and a balanced feed is ensured. Shrimp predators and competitors are controlled and water quality, shrimp quality and shrimp growth rate are monitored.
Intensive Freshwater Shrimp Culture
Intensive shrimp farming may take place both outdoors or indoors. Intensive culture refers to freshwater shrimp farming in small earth or concrete ponds. High water exchange and continuous aeration enable stocking at greater density than and achieving an output of more than 5000 kg/ha/yr. Generally construction and maintenance costs are high and require continous supervision which includes satisfying a nutritional requirements, the elimination of predators, and strict control over all aspects of water quality.