The global shrimp market has been trending uphill for a while now and the demand is expected to increase in the upcoming years. It would be a challenge to keep demand and production ratio balanced as the survival rate of shrimps is 50% on an average, studies say.
Apart from the pathogens that cause diseases there are a variety of other factors that influence the survival rate of shrimps. Here are some of the common mistakes made in shrimp farming in the initial stages of culturing and ways to mend those mistakes too.
Poor Pond Preparation: “A small change can make a big difference!”Proper pond preparation is mandatory! We would have heard this very often. True that before stocking the pond we need to remove the carcasses and disinfect the entire area but little do we know about analysing the past history of the area. It is equally important to analyse if the chosen region has had any disease history. The pond area needs to be properly studied and prepared accordingly. This would be the first baby step towards good farming practices.
Best Practices: Cleaning and disinfecting the pond; proper pond preparation before stocking
Preparing pond for the next culture once it gets dried up after previous crops' harvest Crab Net installation
Poor PL Selection: “As you sow, so you reap! “The identified PLs need to be healthy in order to increase the survival rate. To ensure this, PL should be purchased from well-known hatcheries. Trying to buy cheap PL to cut down costs in the initial stages wouldn’t help in reaping any benefit instead one would end up spending more to mend such mistakes
Best Practices: Buy PL from well-known, trusted hatcheries.
Over Stocking: “Less is More!”Shrimps are highly sensitive to a lot of environmental factors and stress is one of them. Overstocking can increase stress among shrimps and a commonly found impact of this is growth retardation. Also, this increases the chances of the crop getting affected by various diseases.
Best Practices: Stocking the pond with just the right number of shrimps. An ideal number would be 40-60 shrimps/square meter
Over Feeding: “Enough is as good as a feast!”Accumulation of the feed particles in the pond does more bad than good. It decomposes and slowly deteriorates the pond environment condition making it more toxic. Shrimps in the pond will get poisoned by the toxic compounds.
Best Practices: Feeding just the right amount. Constantly checking on the pond to see if the feed is being consumed, increase/decrease the feed quantity accordingly.
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