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38<br />

lowered to the minimum in the water body when all the shrimps escaped<br />

the other methods <strong>of</strong> operati<strong>on</strong> can be well picked out.<br />

Pest harvest stsclmsqlosz<br />

So<strong>on</strong> after the harvest, the post harvest technology depends <strong>on</strong><br />

the <strong>for</strong>m in which the product is to be marketed. In general the<br />

shrimps were kept in ice, protected from sunlight to prevent enzymatic<br />

blackening <strong>of</strong> the shell in lieu <strong>of</strong> treatment with sodium bi—sulphite.<br />

These were subjected to labour intensive deheading in order to reduce<br />

the unpeeled body weight by 35%, the bacterial load by 80% and the<br />

digestive enzyme by 100%.<br />

1.3 IMPORTANCE OF AQUACULTURE<br />

1.3.1 To tide, over the enhanced operati<strong>on</strong>alp cost <strong>of</strong><br />

fishing owing to oilcrisis<br />

The importance <strong>of</strong> aquaculture is that it can tide over the oil<br />

crisis like that <strong>of</strong> the early seventies and recent Gulf war, which made<br />

the exploitati<strong>on</strong> <strong>of</strong> aquatic resources through capture fisheries highly<br />

unec<strong>on</strong>omical. According to iiSim (1979), the advantage <strong>of</strong> aquaculture<br />

as compared to traditi<strong>on</strong>al fishing is that it can dispense <strong>of</strong> expensive<br />

fishing craft and gear together ‘with, their cost <strong>of</strong> operati<strong>on</strong>. and<br />

maintenance.<br />

1.3.2 Io compensate thedeclining trend <strong>of</strong> capture fishery<br />

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