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Fishes live, eat and perform all metabolic activities in water. Water quality management is therefore very important. The factors to consider and their corresponding control are:
Temperature –
acceptable level is 26 -28 OC.
control is by building a shelter over
ponds and
supply of oxygen by
use of aerators. PH – acceptable level is 6.5 – 9.5. Control is by exchange of water if too acidic or alkali. Salinity/ conductivity –
acceptable level is not less than 0.2%. Controlled by diluting with water if salt is high or exchange if salt is low. Mineral and Vitamins – this is supplied through
feed. Ensuring sufficient quantity in feed is
control. Dissolved gases - this build up as a result of metabolic activities and nitrification and displace dissolved oxygen. Control is by supply of air or exchange of water. This should be 70% - 120% but 100% is optimum
Since we are running a flow through system, these parameters will be managed by change of water as frequent as necessary. Water quality tests can also be carried out frequently and
cost of these will be made from fuel and chemicals.
LAND
Land if not yet available has to be acquired. Cost of acquisition is however location dependent. No figure would however be giving in this right up.
A simple and ideal sample farm site layout is attached with this document. Autocad software would be needed to view it. Modifications can however be made depending on
client.
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