Model white leg shrimp farming has become familiar to our country. Most of all shrimp species, whiteleg shrimp is valued higher in quality, taste and economic value than other shrimp species. So, what techniques should whiteleg shrimp farming, in today’s article, we will provide from A to Z what you need to know.
Preparing ponds for whiteleg shrimp
Renovating white leg shrimp pond
Before releasing shrimp into farming, farmers need to clean the pond. Drain the water, dry the pond for 10 to 15 days, then provide about 20cm of flooded water. Decontamination of ponds and removal of impurities with quicklime is an indispensable step. Next, drain the water in the pond, then pump clean water to wash the pond, proceed about 3 times, finally wait for the high tide, then pump a high amount of water about 2m into the pond.
Fertilizing to create color for white leg shrimp ponds
Colorize whiteleg shrimp ponds by applying nitrogen and phosphate fertilizers at the ratio of 1/9. In addition, provide fertilizer 1.5kg/ha to raise organisms as food for shrimp. Regulate the clarity of the pond below 40cm.
Choose a place to raise white leg shrimp
The construction of ponds is one of the indispensable techniques for effective white-leg shrimp farming. People should choose high-tide areas to facilitate water supply and drainage and to dry the pond bottom during the reclamation process. Vannamei shrimp is a species of shrimp that does not like to live in sandy or muddy bottom ponds, so it should be noted that the soil to build the pond must be loamy soil or sandy soil, containing little organic humus, tight texture, water retention, and pH level. of land must be 5 or more.
Choosing white leg shrimp farming varieties
Choosing white leg shrimp is an extremely important step, which plays a decisive role in the quality of the finished product. That is why you need to do this step carefully. Shrimps of unknown origin will create diseases that are difficult to control and lead to loss of revenue because of the mass death of shrimp.
Technical requirements when selecting varieties:
Choose whiteleg shrimp of the same size (1cm), same litter
Shrimp stocking density should not be too thick, about 15,000 shrimp/ha
The appropriate time of stocking is in the afternoon, when the temperature in the pond is cool, pay attention to stand at the head of the wind, gently drop the shrimp seed into the pond.
Daily pond water management
Regularly check the water in the pond to take measures to adjust the quality of the pond water. If you notice that the water is shallow, add 10-30%/day slowly, ensuring the clarity from 40 to 60cm, the salinity from 10 to 25%.
Feed shrimp in the right way and in the right amount, without underfeeding or overeating, paying attention to shrimp food that is suitable for each stage of shrimp development.
In the first days when shrimp are first stocked, they should be fed 2 to 3 times a day, feeding by spreading around the pond.
The first day use feed with the amount of 2kg per 100,000 varieties.
In the first 20 days, after 1 day increase the amount of feed to 0.2kg/100,000 varieties.
From the 21st, increase 0.5kg per 100,000 varieties.
In the following months, the amount of feed ranged from 5.8% of body weight to 2.1% when the size of vannamei was larger than 60 shrimp per kg. Farmers feed shrimp 4 times/day, feeding by spreading evenly throughout the pond. Pay attention to adjust the amount of feed and also the quality of the feed in accordance with the white leg shrimp culture period.
Above are all the white leg shrimp farming techniques that you must grasp. Hopefully, the shrimp farming model will bring a good economic source, bringing a stable income. Happy successful people!
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