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Water Quality parameters in Shrimp Farming

Water Quality is vital for a successful crop. Availability of good quality water is required quantities is one of the most important prerequisites for sustainable aquaculture. While locating the farm site, careful study should be made on the source of water, a quantity of water available during the different seasons, and the quality of water. All instructions and precautions should be followed strictly to get the best out of your farm.

 

Some Key Points to follow are,

  • Maintain Pond to Reservoir in 3:1 ratio
  • Pump water with proper mesh filtration (20, 40, 60 and 80 mesh in stages)
  • Do Sedimentation and Chlorination sufficiently.
  • Establish optimum bloom.
  • Provide sufficient aeration.
  • Follow all biosecurity measures to keep the carriers away from pond.
  • Use Probiotics for managing the water quality

 

Optimum water quality parameters for Vannamei

Maintenance of water quality within the optimal levels during the culture is very essential for ensuring good growth and survival of shrimps are presented below. 

 

Water Parameters

Optimal Range

Dissolved Oxygen

>5 ppm

Temperature

28-310C

pH

7.5 – 8.5

Transparency (Secchi disc)

35 – 45 cm

Salinity

10-25 ppt

Total Alkalinity as CaCO3

100-160 ppm

Total Hardness as CaCO3

>2000 ppm

Calcium/Magnesium Ions Ratio

1:3

Total Ammonia (NH4+)

< 1.0 ppm

Unionized Ammonia (NH3)

< 0.1 ppm

Nitrite

< 0.2 ppm

Hydrogen Sulphide (H2S)

< 0.1 ppm

 

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