Indoor Freshwater Shrimp Farming
Tuesday, April 3, 2012
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Freshwater Prawn And Shrimp Farming
Interior freshwater shrimp refers to the kindergarten stage of the prawn (Macrobrachium rosenbergii in general). This is the post-larvae (PL) stage, from when they leave the freshwater brackish water, until the older juvenile stage when they "transfer push-out" from ponds.
The kindergarten stage
Post larvae weighs about 6 to 9 mg and 7 to 10 mm long. You can at densities much higher than if they survive to reach it larger. The nursery interior allows them to grow quickly in a protected environment until they are large enough to be handled pools. Each batch of PL remains in the nursery of 20 to 60 days. Length of stay is determined by climate.
Tanks
The tanks are usually made of concrete or fiberglass. The plastic is sometimes used, but runs the risk of leakage and is difficult to clean. Glass tanks are fragile and are not profitable. The metal is toxic to shrimp. The interior of the tank shall be dark in color (green, blue or black) to reduce, stress. Commercial tanks are usually 10 to 50 square meters, but the size of the container is not as important as the density of the PL. The water depth should be 1 meter. The density is based on the cubic meter of the tank. In a water tank, the maximum density of 1000 shrimp per cubic meter. Enter substrate increases the maximum density of 2,000 per cubic meter, and is much more humane. If PL must remain in the nursery after 20 days, their density must be reduced further. The water temperature is 27 to 31 degrees C (81.6 to 87.8 degrees F). Use commercial tank heaters and thermometers. Normal ambient light is sufficient.
Substrate
The substrate is in the tank everything placed to catch shrimp. The lack of substrate caused the death of stress and cannibalism. Substrates are the most popular sectors and various forms of plastic mesh. Avoid galvanized metals (such as hardware cloth), because they are toxic to shrimp. The substrate must be positioned so it does not disturb any cleaning. When looking for suction from below, you should be able to easily move the substrate.
Ventilation and filtration
Ventilation is necessary for survival. A backup generator is highly recommended. The filtration may be a continuous flow system, the water will be continually replaced, but this method can be wasteful and ineffective. A recirculation system with biological filter is recommended. There are two opinions on suction. The first recommends removal of debris from the bottom to prevent diseases and water quality. The second allows debris to build and grow tiny organisms that shrimp eat in order to supplement their diet. Let us determine the water quality effects and mortality, which system is most appropriate and economical.
Feed
In nature, no matter feed on plant and animal shrimp they recover, and they catch tiny organisms. Diet in captivity is shrimp or catfish pellets, or commercial dog food. Animal products such as fresh fish or chopped beef liver can be added, but can cause a toxic growth. Live foods are also available. Nursery shrimp are set 10 to 20 weight percent of the entire body reservoirs through once or twice per day, for the growth and the amount of food consumed relative amount fed.
Interior freshwater shrimp refers to the kindergarten stage of the prawn (Macrobrachium rosenbergii in general). This is the post-larvae (PL) stage, from when they leave the freshwater brackish water, until the older juvenile stage when they "transfer push-out" from ponds.
The kindergarten stage
Post larvae weighs about 6 to 9 mg and 7 to 10 mm long. You can at densities much higher than if they survive to reach it larger. The nursery interior allows them to grow quickly in a protected environment until they are large enough to be handled pools. Each batch of PL remains in the nursery of 20 to 60 days. Length of stay is determined by climate.
Tanks
The tanks are usually made of concrete or fiberglass. The plastic is sometimes used, but runs the risk of leakage and is difficult to clean. Glass tanks are fragile and are not profitable. The metal is toxic to shrimp. The interior of the tank shall be dark in color (green, blue or black) to reduce, stress. Commercial tanks are usually 10 to 50 square meters, but the size of the container is not as important as the density of the PL. The water depth should be 1 meter. The density is based on the cubic meter of the tank. In a water tank, the maximum density of 1000 shrimp per cubic meter. Enter substrate increases the maximum density of 2,000 per cubic meter, and is much more humane. If PL must remain in the nursery after 20 days, their density must be reduced further. The water temperature is 27 to 31 degrees C (81.6 to 87.8 degrees F). Use commercial tank heaters and thermometers. Normal ambient light is sufficient.
Substrate
The substrate is in the tank everything placed to catch shrimp. The lack of substrate caused the death of stress and cannibalism. Substrates are the most popular sectors and various forms of plastic mesh. Avoid galvanized metals (such as hardware cloth), because they are toxic to shrimp. The substrate must be positioned so it does not disturb any cleaning. When looking for suction from below, you should be able to easily move the substrate.
Ventilation and filtration
Ventilation is necessary for survival. A backup generator is highly recommended. The filtration may be a continuous flow system, the water will be continually replaced, but this method can be wasteful and ineffective. A recirculation system with biological filter is recommended. There are two opinions on suction. The first recommends removal of debris from the bottom to prevent diseases and water quality. The second allows debris to build and grow tiny organisms that shrimp eat in order to supplement their diet. Let us determine the water quality effects and mortality, which system is most appropriate and economical.
Feed
In nature, no matter feed on plant and animal shrimp they recover, and they catch tiny organisms. Diet in captivity is shrimp or catfish pellets, or commercial dog food. Animal products such as fresh fish or chopped beef liver can be added, but can cause a toxic growth. Live foods are also available. Nursery shrimp are set 10 to 20 weight percent of the entire body reservoirs through once or twice per day, for the growth and the amount of food consumed relative amount fed.
Freshwater Prawn And Shrimp Farming