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With the above stocking densities, supplementary feeding becomes essential after 4-6 weeks of rearing, when the natural feed cannot sustain their growth. Only formulated feed (dry pellets) with a minimum 4-hour water stability should be used. The feeding rate prescribed by manufacturer varies, depending on the quality of the feed. Generally, the feeding rates given in the following table are followed.
The feeding schedule should be regulated on the basis of the feeding check trays placed in the ponds. Feeding through trays placed in various parts of the pond is found to be more economical and beneficial. Excess feeding can be avoided by increasing the frequency of feeding. The daily feed requirement can be spilt into smaller rations, and given 4-6 times a day, with a major percentage during the evening and night feeding.
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Size of the shrimp (g)
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Feeding rate (%)
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2 – 5
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4.0 – 3.0
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5 – 10
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3.0
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10 – 15
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3.0 – 2.5
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15 – 20
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2.5 – 2.0
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20 – 35
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2.0
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