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Category: Tips

07Mar

Tips on Taking Care of Shrimp Ponds During the Rainy Season

Taking care of shrimp ponds during the rainy season is the biggest challenge for farmers during cultivation. High rainfall is very risky for ponds because it can disrupt the balance of water parameters, directly impacting the health and productivity of shrimp ponds.

To ensure the long-term sustainability and profitability of shrimp farms, farmers must have a solid understanding of best practices for managing shrimp ponds during the rainy season.

In this article, we will discuss some tips and strategies on taking care of shrimp shrimp ponds during the rainy season so farmers can minimize risks and maximize aquaculture productivity.

Also Read: 7 Types of Shrimp Diseases that Often Occur During Cultivation

The Impact of the Rainy Season on Vannamei Shrimp Cultivation

The water quality parameter is the primary indicator of the success of vannamei shrimp cultivation. Optimal water quality can make vannamei shrimp farming a great success. On the other hand, poor and drastically changing water quality can cause vannamei shrimp to become stressed and susceptible to disease.

Following are some of the impacts of the rainy season on vannamei shrimp cultivation:

1. Temperature Changes

When it rains, pond water temperatures can drop to 2-3°C. Low temperatures make water conditions less than optimal, impacting metabolic rates and making shrimp activity slower, and they tend to gather at the bottom of the pond.

Not only has an impact on shrimp, but the activity of decomposing bacteria also decreases when the pond temperature is not in optimal conditions. This causes the accumulation of organic matter present in the ponds

2. Decrease in pH

Rain pH is usually around pH 6.5-7.0. Rain will directly lower the pH by 0.3-1.5 shortly.

3. Changes in Salinity and Alkalinity.

Rain can cause pond water to become thinner, so the salinity and alkalinity numbers also go down.

When the salinity drops, the shrimp will molt. However, the limited availability of minerals can lead to disease infection and cannibalism among shrimp.

4. Plankton Population and Organic Matter Accumulation

The impact of the rainy season on vannamei shrimp cultivation is the death of phytoplankton due to changes in water quality parameters. The dead phytoplankton will also accumulate as organic matter at the pond’s bottom.

The rainy season also makes the shrimp’s diet abnormal and tends to be lower. Therefore, the remaining feed will be more, and the processing is also slower and causing the accumulation of organic matter to increase.

5. Decreased Shrimp Immunity Level

Changes in water quality parameters due to rainwater can cause the ecosystem where shrimp live to become unstable. In addition, sudden changes can cause shrimp to become stressed, and experience decreased immunity, making them susceptible to disease infections.

Also Read: 5 Tips on Managing Vannamei Shrimp Ponds

Tips for Taking Care of Shrimp Ponds During the Rainy Season

1. Proper Pond Preparation

Preparing a proper pond is very important to maintain the health of the shrimp pond during the rainy season. Shrimp farmers must ensure that their ponds are cleaned properly and free of waste and impurities before the rainy season arrives.

In addition, it is necessary to construct suitable drainage channels and install pumps to drain the sewage to control the water level.

2. Maintaining Optimal Water Quality

Water quality is essential for successful cultivation, especially when the rainy season arrives. Excessive rainfall can cause a decrease in optimal conditions for pond water quality parameters.

Therefore, farmers must continue to monitor water quality regularly and take appropriate action when the rainy season comes, for example, by adding an aerator, adjusting the pH and salinity levels, reducing the frequency of feeding, and maintaining optimal water conditions.

3. Disease Management

Tips for taking care of shrimp ponds during the next rainy season are good disease management. During the rainy season, the growth of microorganisms, including bacteria and viruses, increases. This can cause shrimp to be susceptible to disease.

Farmers must take preventive measures, such as disinfecting ponds and equipment, implementing good hygiene and biosecurity protocols, and always monitoring for signs of shrimp disease.

4. Adjust Feeding

Feed management is an important aspect that must be considered when caring for shrimp ponds during the rainy season, where farmers must adjust their feeding schedule based on weather conditions and pond water quality.

Overfeeding can lead to poor water quality and increase the risk of disease. While giving less feed can inhibit the growth of shrimp.

In addition, make sure the feed given is of high quality and free from pathogenic contamination.

5. Always Monitor Weather Conditions

The last tip on taking care of shrimp ponds during rainy season is always to monitor weather conditions. Rainfall sometimes cannot be predicted precisely and accurately, so farmers must prepare what actions to take when it rains.

Some things that can be done include closing the pond and reducing the feed. In addition, always be alert for signs of flooding that can cause water quality problems and damage pond infrastructure.

Also Read: 5 Tips for Accelerating Vannamei Shrimp Growth When Cultivating

Vannamei Shrimp Cultivation More Productive with DELOS!

Maintaining and taking care of a shrimp pond during the rainy season can be a big challenge and a high risk. This is because rainwater directly affects the water quality parameters of ponds where vannamei shrimp live.

Therefore, farmers must make special preparations before the rainy season arrives. So, for those of you who want to start vannamei shrimp farming or increase your shrimp ponds’ productivity, DELOS is the right choice.

DELOS is the best science, technology, and operational management-based aqua-tech company that can help you increase the productivity of your vannamei shrimp farming.

DELOS Farm Management is also integrated with the AquaHero application, making it easier for you to monitor the condition of the shrimp in the pond just through the gadget every day.

To join the DELOS ecosystem, contact contact@delosaqua.com or submit via the contact column on our website, www.delosaqua.com. Vannamei shrimp farming is more productive with DELOS!

23Feb

AquacultureTips

Vannamei Shrimp Stocking Density and How to Calculate It

One important aspect of aquaculture is determining the optimal vannamei shrimp stocking density. This can be done to consider the number of shrimp that can be accommodated from start to harvest in the pond that has been prepared.

Stocking density plays an important role in the success of aquaculture because excess density can cause poor water quality, disease attacks, and stunted shrimp growth in ponds.

In addition, shrimp stocking densities that are too high can also increase competition for food and space. So, what is the ideal stocking density for traditional, semi-intensive, intensive, and super-intensive ponds? Read more in this article.

Also Read: Vannamei Shrimp Salinity and How to Control Its Stability during Cultivation

Why is it Important to Consider Stocking Density?

Farmers must consider the stocking density of the vannamei shrimp they will choose before starting cultivation. This is because stocking density directly affects the growth and quality of the cultivated vannamei shrimp.

There are several other reasons why it is important to consider the stocking density, including:

1. Ensuring Optimal Shrimp Growth and Health

Traditional and intensive vannamei shrimp stocking densities significantly impact the growth and health of vannamei shrimp. Overcrowding can lead to poor water quality, increased competition for food and space, and increased risk of disease outbreaks.

Calculating the stocking density of vannamei shrimp and adjusting it to pond conditions ensures it can grow and develop optimally.

2. Maximizing Cultivation Results

Intensive vannamei shrimp stocking density is closely related to the cultivation results obtained later. The density that is too low in large ponds is the same as not utilizing available resources efficiently, so the yields are not optimal.

Conversely, a density that is too high and does not match the capacity of the pond can cause an increase in mortality and a decrease in growth rates. Therefore, by calculating the stocking density and adjusting it according to needs, farmers can maximize the potential of their ponds.

3. Cost Effectiveness

Vannamei shrimp cultivation is a lucrative business because the profits are very abundant. However, like business, this abundant profitability must be accompanied by cost-effective use during the cycle.

Calculating the stocking density of vannamei shrimp is one way to help cultivators determine capital and maximize their profits from this cultivation.

Too high density can lead to increased mortality, decreased growth rates, and increased FCR numbers. This will also impact increasing costs and reducing profits when the harvest arrives.

4. Disease Management

The density of vannamei shrimp directly affects the risk of disease outbreaks during cultivation. Pond ponds that are too dense can affect water quality, triggering disease outbreaks over time.

By calculating stocking densities and maintaining them at optimal levels, farmers can reduce the possibility of disease outbreaks and minimize the need for expensive shrimp health care.

5. Environmental Sustainability

Vannamei shrimp cultivation can cause significant environmental impacts, especially in intensive and super-intensive cultivation types that must be carried out sustainably.

The more shrimp cultivated in the pond, the more dirt and food scraps are produced during cultivation. Dirt and food scraps can turn into chemical compounds that harm the environment.

Therefore, by calculating the stocking density and maintaining it at an appropriate level, farmers can minimize the negative impact on the environment that may occur.

Also Read: Cultivating Vannamei Shrimp with Biofloc System

How to calculate the stocking density of Vannamei Shrimp

Calculating the stocking density of vannamei shrimp requires careful measurement and accurate recording. This is so that your cultivation can bring maximum profit and avoid losses.

Then, how to calculate the stocking density of vannamei shrimp? Here are the steps.

Calculate the Capacity of the Pond

The first step you have to take is to calculate the pond capacity that will be used for vannamei shrimp cultivation. How to calculate the area of a vannamei shrimp pond can be measured using a measuring tape or other measuring device.

If the pond you have is rectangular, you can use the volume formula as follows:

Volume = pond length (meters) x pond width (meters) x pond depth (meters)

For example, if you have a pond with a length of 10 meters, a width of 5 meters, and a depth of 3 meters. Then the capacity of the pond = 10 x 5 x 3 = 150 cubic meters.

After knowing the capacity of your vannamei shrimp pond, choose a stocking density following this capacity.

However, if you already know the area of the pond that you have for sure, you can immediately follow the second step, namely calculating the stocking density of vannamei shrimp.

Calculate the Stocking Density of Vannamei Shrimp

Vannamei shrimp stocking density depends on the cultivation method used. For example, use traditional, semi-intensive, intensive, or super-intensive cultivation methods.

The formula for total stocking density = pond area (square meters) x stocking density per meter

This total stocking density is usually used for calculating the amount of feed, aerators, and other pond needs.

The stocking density of vannamei shrimp in traditional ponds is usually a little, which is around 5-8 PL per square meter. If your pond is 100 square meters in area, then 100 x 5 = 500 shrimp fry that can be stocked in the pond.

While in intensive ponds, the stocking density of vannamei shrimp tends to be higher. The stocking density of intensive ponds is above 100 per square meter. At the same time, the calculation formula must also be adjusted to the number of wheels and aerators used.

Also Read: Do These 5 Things For Successful Vannamei Shrimp Cultivation

Choose DELOS as Your Vannamei Shrimp Cultivation Partner!

Overall, determining the optimal stocking density for vannamei shrimp requires careful consideration of various factors, including the pond area. Farmers must consider this carefully to ensure the optimal growth of shrimp.

Well, for those who want to get into the vannamei shrimp farming business, you can start easy and productive vannamei shrimp farming with DELOS.

DELOS is the best science, technology, and operational management-based aqua-tech company that can help you explore new opportunities in the aquaculture field.

DELOS Farm Management is also integrated with the AquaHero application, making it easier for you to monitor the condition of the shrimp in the pond just through the gadget every day.

Want to get pond supplies at affordable prices? AquaLink can now connect you with producers and farm owners to get and sell pond products at the best prices.

Contact the DELOS Team via contact@delosaqua.com or submit via the contact column on our website, www.delosaqua.com to get the best offer for your vannamei shrimp farming. Trust your farm management to DELOS!

21Feb

AquacultureTips

5 Tips on Managing Vannamei Shrimp Ponds

Success when cultivating always depends on our way of managing vannamei shrimp ponds. Both in terms of technical and non-technical factors. Therefore, farmers need to have good pond planning and management.

This method of managing shrimp ponds also directly affects harvest productivity. Thus, many factors must be considered in vannamei shrimp farming, such as human resource factors, feed management, shrimp health management, and the harvest process.

Here we have summarized some tips on managing shrimp ponds, especially for you, so that the harvests are as expected.

Also Read: These are 7 Tips for Successful and Profitable Vannamei Shrimp Harvest

Ideal Shrimp Pond

Talking about the ideal shrimp pond, the first thing that comes to your mind is how it is constructed. This is because construction has an important role in the sustainability of shrimp ponds.

So, here are the criteria for ideal shrimp ponds regulated in the Ministry of Maritime Affairs and Fisheries Regulation No. 75/PERMEN-KP/2016 concerning General Guidelines for Enlargement of Tiger Shrimp (Penaeus Monodon) and Vannamei Shrimp (Litopenaeus Vannamei).

Have sufficient water availability.
Ponds do not have dead spots.
Effective and efficient in the use of land and mills.
The bund as an access road in the pond must be passable by vehicles and workers.
Guaranteed maximum security and safety (K3).

If you have fulfilled the five criteria based on the Minister of Maritime Affairs and Fisheries Regulation No. 75 of 2016 above, you can then select the ideal pond location. Some of the criteria for an ideal pond location include the following:

The location of the shrimp ponds is under the Regional Spatial Plan (RTRW) and applicable regulations.
The location of the new shrimp ponds above/behind the shoreline (100 meters from the highest tide point) and the riverbank.
Having sufficient and good quality source water.
Located in an area protected from routine flooding and the influence of toxic and hazardous waste (B3) pollution.
Do not build new ponds on mangrove land and the core zone of the conservation area.
Do not build shrimp ponds in areas where saltwater seepage has the potential to affect surrounding agricultural areas or freshwater sources.
Adequate transportation and communication infrastructure is available.

Also Read: Promising Vannamei Shrimp Cultivation Prospect and Export Opportunities

Tips for Managing Shrimp Ponds

1. Choose the Right Pond Lining

The pond bottom lining is important to ensuring biosecurity during shrimp farming. Ground ponds directly exposed to water can trigger anoxic reactions, which are highly toxic to shrimp. Therefore, coatings such as high-density polyethylene (HDPE) plastic or concrete can be a solution.

In addition to biosecurity issues, using HDPE concrete and plastic layers also makes it easier to manage water and pond bottoms.

2. Consider Pond Design

The design of the vannamei shrimp pond has various shapes, including rectangular, square and round. This pond’s shape has advantages and disadvantages, as well as an effect on water flow and pond sediment accumulation.

While at the bottom of the pond can be designed with a central channel to minimize sedimentation. It works by utilizing the sedimentation and centrifugal currents generated by the aerator to push and concentrate the solids that settle in the middle of the pond.

Then, these solids can be manually pumped out of the pond through a pumping system connected to the sewer.

3. Place the Pond Aerator Properly

In intensive system vannamei shrimp farming, the aerator plays an important role in providing oxygen while helping to push sludge into the sewer. While the type and number of aerators can be adjusted to the needs of each pond based on pond size and stocking density.

To set up the aerator, you need to make sure that the aerator has covered all the corners and sides of the pond so that no mud remains untouched. There are two main designs for placing aerators: parallel and diagonal.

4. Clean the Pond Base Manually

The next tip for managing vannamei shrimp pond is routinely cleaning the pond’s bottom. Manual cleaning or suctioning of waste is good for maintaining optimal pond bottom quality.

So, how often should the bottom of the pond be cleaned? In general, there are no specific rules regarding how often to clean. However, it is recommended to do it once daily so that the waste that settles does not accumulate too much.

5. Periodic Basic Evaluation of Ponds

As the vannamei shrimp farming cycle progresses, it is very important to know the sediment condition at the bottom of the pond to prevent negative impacts. So it is necessary to evaluate periodically by taking sediment samples at certain points. The evaluation parameters include Redox potential, pH, pH2S, and NH4-N sol.

Sampling should be done regularly, at least twice per cycle. Precisely in the middle of the cultivation cycle when the mud begins to form and at the end of the cycle as an evaluation.

However, more frequent evaluations should be carried out in special cases such as mass mortality or slow growth of shrimp.

Also Read: 5 Stages of Vannamei Shrimp Pond Preparation Before Doing Cultivation

Choose DELOS as Your Shrimp Cultivation Partner!

Those are tips on managing vannamei shrimp ponds that you should pay attention to so that shrimp growth becomes optimal and produces a profitable harvest.

Managing shrimp ponds is not an easy thing to do. Therefore, if you need assistance in the cultivation of vannamei shrimp that you are doing, DELOS can be the best choice for you.

DELOS is the best science, technology, and operational management-based aqua-tech company that can help you explore new opportunities in aquaculture.

DELOS pond management is also integrated with AquaHero, making it easy for farm owners and farm personnel to monitor the condition of shrimp ponds in real-time only through gadgets every day.

Immediately contact the DELOS Team to get cultivation assistance via contact@delosaqua.com or submit via the contact column on our website, www.delosaqua.com. Choose DELOS as your shrimp farming companion!

17Feb

Tips

5 Tips for Accelerating Vannamei Shrimp Growth When Cultivating

Slow growth is sometimes a problem that must be faced when cultivating. Therefore, it is essential to know tips on accelerating vannamei shrimp growth before it’s too late.

Vannamei shrimp cultivation has become a profitable business lately. This is because the demand for vannamei shrimp in the global market is increasing daily. Of course, at a very attractive price.

However, only good quality vannamei shrimp can be sold at the maximum price. Meanwhile, vannamei shrimp with slow growth means that farmers have to wait a little longer to harvest and then sell them.

So what are the tips for accelerating vannamei shrimp growth during cultivation? Here we have summarized it, especially for you.

Also Read: 10 Equipments for Vannamei Shrimp Ponds that Must Be Prepared

Factors Causing Slow Vannamei Shrimp to Grow

When cultivating, it is common for farmers to experience slow growth of their shrimp. The cause of the slow growth of vannamei shrimp is influenced by several factors, including:

1. Water quality

The first factor affecting the growth of vannamei shrimp is water quality. Shrimp need clean, well-oxygenated water to grow and develop.

Poor water quality, such as high levels of ammonia, nitrite, and nitrate, low levels of dissolved oxygen, and high salinity, can stress shrimp and inhibit their growth.

2. Too High Density

The density of vannamei shrimp ponds also affects growth. Overcrowded ponds can cause stress on the shrimp to compete for food and space. This can result in slower growth rates or even death.

3. Poor Nutrition

Vannamei shrimp require an adequate supply of nutrients to grow and develop. This includes protein, vitamins, and minerals obtained from feed and saprotam.

Giving vannamei shrimp feed that does not meet the nutritional needs needed can prevent shrimp growth from becoming stunted and shrimp cannot grow optimally.

4. Disease

Shrimp are susceptible to disease attacks that can affect their growth. Common diseases that affect shrimp growth include bacterial, viral, and parasitic infections.

5. Poor Quality Vannamei Shrimp Seeds

Mistakes in selecting vannamei shrimp seeds can also affect shrimp growth. Poor-quality fry will produce bad shrimp as well.

The low-quality vannamei shrimp fry can be seen from the size that is different from the other fry. For example, the condition of the fry’s body is deformed, the intestine is not filled, and the antennae are not intact, the fry is not actively swimming.

Also Read: Vannamei Shrimp Feed Management Tips for Your Anti-Loss Cultivation!

Tips for Accelerating Vannamei Shrimp Growth

Several factors can affect the growth of vannamei shrimp, including water quality, feed, and pond environmental conditions. Here are tips on accelerating vannamei shrimp growth that you can do.

1. Make Sure the Water Quality is Always Optimal

Accelerating vannamei shrimp growth can be done by ensuring that pond water quality is always optimal. This is because shrimp need quality water free of pollutants, poisons, and pathogens to grow appropriately.

Maintaining proper temperature, salinity, pH, and dissolved oxygen levels is important for their growth. Therefore, farmers need to carry out regular water testing and monitoring.

2. Choose High-Quality Feed

Vannamei shrimp require feed with balanced nutrition to support their growth. So, choose a feed high in protein, vitamins, and minerals.

Also, feed the shrimp regularly and in the right amount. Also, ensure the feed given is consumed entirely by the shrimp quickly.

3. Optimize Feeding

During cultivation, it is essential to optimize vannamei shrimp feeding. This includes the frequency and amount of feed because underfeeding or overfeeding can harm shrimp growth.

4. Maintain Ideal Environmental Conditions

The next step for accelerating vannamei shrimp growth is maintaining ideal environmental cultivation conditions. For example, ensuring the water temperature and other environmental conditions are stable and consistent prevents shrimp from becoming stressed, which can affect their growth.

5. Adopt Proper Cultivation Management Practices

Proper management of vannamei shrimp culture can be a factor that accelerates vannamei shrimp growth, for example, by changing the water regularly, cleaning the pond of sediment deposits, and monitoring water quality daily.

Also Read: This is the Process of Molting in Shrimp and How to Handle It

Monitor the Condition of Shrimp Ponds Every Day with AquaHero

Poor water quality is one of the causes of stunted vannamei shrimp growth. Therefore monitoring pond water conditions can be one way to accelerate vannamei shrimp growth.

Now you can practically and easily monitor the condition of your shrimp pond water with AquaHero. AquaHero is a data-based application that makes it easy for farmers to monitor the condition of their shrimp ponds in real time.

Apart from that, AquaHero also has a recommendation feature that can help farm owners and farm personnel to get scientific predictions and recommendations for the right actions to take. This includes harvesting, phytoplanktons, carrying capacity, and others.

To enjoy AquaHero features, contact the DELOS Team via contact@delosaqua.com or submit via the contact column on our website www.delosaqua.com. Vannamei shrimp farming is easier with DELOS!

14Feb

Fun ReadTips

This is the Difference between Male and Female Shrimp

Farmers need to know the differences between male and female shrimp before hatching. This aims to ensure that the spawned parent shrimp have different sexes with the correct amount ratio.

However, determining the difference between male and female shrimp is sometimes tricky because the two look very similar at first glance. However, some traits can be observed to find the difference.

What are these characteristics? Here we have summarized it for you in this article. So, make sure to read it all the way through.

Also Read: The Organ System and Morphology of Vannamei Shrimp that You Should Know

The Difference between Male and Female Shrimp

The difference between male and female shrimp can be identified from their genitals. In male shrimp, the genitals are in the form of petasma, located on the first swimming leg, which transfers sperm.

Meanwhile, the female shrimp’s genitals are known as thelycum, which is located between the fourth and fifth leg of the road and functions to store sperm.

The female reproductive system uses a pair of ovaries, oviducts, genital openings, and thelycum. While the male reproductive system uses the testes, vasa deferensia, petasma, and masculine appendix.

In addition, the difference between male and female shrimp can also be seen in their body size. The female shrimp parent usually has a larger size than the male parent.

Also Read: Get to Know the Vannamei Shrimp as a Farmers’ Favorite

Criteria for Ideal Shrimp Brood

The ideal female shrimp parent is a parent that has mature eggs. The maturity of the eggs is measured based on the development of the ovaries, which are located on the dorsal side of the shrimp’s body. The ovaries are green the more mature they are, the darker the color.

While the development of perfect petasma determines male shrimp. Usually, this petasma contains a spermatophore.

From the physical condition, the shrimp chosen as broodstock must have at least a minimum weight of 100 grams for females and 80 grams for males. Also, ensure the parents do not have defects or injuries, especially on the reproductive organs, to produce high-quality shrimp seeds.

To determine whether the eggs in the parent have matured, it is usually done in two ways: lifting the female and facing the lower body (ventral) towards the sun. In addition, you can also use a waterproof light beam to observe it.

Also Read: Getting to Know the DOC Term in Shrimp Farming

Choose DELOS as Your Shrimp Cultivation Partner!

That is the difference between male and female shrimp that farmers should know before spawning. This is because it is important to ensure that the parent shrimp spawned have the same number of different sexes.

DELOS can be the right cultivation companion for your shrimp pond for those who want to know more about vannamei shrimp farming management, including the primary spawning process.

DELOS is the best science, technology, and operational management-based aqua-tech company that can help you explore new opportunities in the aquaculture field.

DELOS pond management is also integrated with AquaHero, making it easy for farm owners and farm personnel to monitor real-time shrimp pond conditions through gadgets daily.

Immediately contact the DELOS Team to get cultivation assistance via contact@delosaqua.com or submit via the contact column on our website www.delosaqua.com. Choose DELOS as your shrimp farming partner!

_______________________________

Source: Pratiwi, Rianta. 2018. Aspek Biologi dan Ablasi Mata Pada Udang Windu penaeus monodon Suku Penaeidae (Deapoda: Malcostraca). Oseana. 43(2): 34-47

Setiawan, Arief, dkk.,. 2004. Pemilihan dan Pemeliharaan Induk Udang. Departemen Pendidikan Nasional

09Feb

AquacultureTips

The Threats of Nitrite in Shrimp Ponds and How to Overcome It

The threat of nitrite in shrimp ponds is an impact on the environment from intensive vannamei shrimp cultivation that all shrimp farmers can face. Therefore, farmers must find out ways to prevent and overcome them immediately.

Vannamei shrimp has long been a species of shrimp cultivated in Indonesia. This is because this type of shrimp is a food that is very popular with people around the world, so its export value continues to increase from year to year.

However, the intensive cultivation of vannamei shrimp can cause various impacts on the environment, one of which is the threat of nitrites. So, how to overcome it? Read more in this article!

Also Read: Get to Know Myo IMNV Disease in Vannamei Shrimp and Its Characteristics

What is Nitrite in Shrimp Ponds?

Nitrite in shrimp ponds is a toxic substance produced from nitrogen which is only partially oxidized. This substance is not found in fresh wastewater but in wastewater that has long been settling and accumulating.

High nitrite levels can result from overfeeding of shrimp, excessive sediment density, poor water circulation, and other factors that upset the balance of the nitrogen cycle.

Nitrite is very toxic to vannamei shrimp. Its presence can cause various adverse effects, including stunted growth and development of shrimp or even death.

Nitrite is not fixed and can turn into ammonia or be oxidized to nitrate at any time. When compared with nitrate, the presence of nitrite in the waters is less. However, the level of toxicity for vannamei shrimp is very high.

The danger of nitrite toxicity in vannamei shrimp ponds is especially evident in the early stages of the cultivation cycle. During this initial stage, nitrite levels can rise rapidly and reach dangerously toxic levels.

The presence of oxygen in shrimp ponds affects the presence of nitrites in shrimp ponds. In general, waters that get an adequate supply of oxygen have lower levels of nitrite concentration when compared to waters that do not get an oxygen supply.

Also Read: Recognize 7 Characteristics of AHPND Disease in Vannamei Shrimp Before It’s Too Late

How to Overcome Nitrite Threats in Shrimp Ponds

Even though it has a high level of toxicity, it does not mean that the nitrite threat cannot be overcome. One of the most important steps must be taken is monitoring water quality regularly and keeping other parameters optimal.

This can be done by adjusting the feeding, increasing oxygen circulation, and adjusting the stocking density of vannamei shrimp to prevent overcrowding.

How to deal with the threat of nitrite in shrimp ponds can also be done by adding nitrite-reducing bacteria into the pond. These bacteria can consume nitrites and convert them into less harmful substances, such as nitrogen gas.

Not only that, the presence of bacteria known as Nitrobacter can also help improve water quality along with reduced nitrite levels, making it safe for the growth of cultivated vannamei shrimp.

In addition, it is also essential to keep the pond well-aerated, especially in the early stages of the culture cycle. Adequate aeration helps ensure dissolved oxygen levels remain high, reducing the risk of nitrite toxicity and other water quality problems.

Also Read: Get to Know Vibrio Bacteria in Vaname Shrimp As the Cause of Various Diseases

Vannamei Shrimp Cultivation More Productive with DELOS!

The threat of nitrites to vannamei shrimp can occur at any time if the pond does not have adequate waste circulation. Therefore, practicing good pond management and sanitation is essential, including removing organic waste regularly and maintaining pond aeration.

By taking these steps, you can help reduce the risk of nitrite toxicity and keep the vannamei shrimp pond environment you have healthy.

For those who need assistance with vannamei shrimp cultivation to get maximum results. DELOS is the correct answer for you. DELOS is the best science, technology, and operational management-based aqua-tech company that can help you explore new opportunities in the aquaculture field.

DELOS Farm Management is also integrated with AquaHero, which makes it easy for farm owners and farm personnel to monitor the condition of their shrimp ponds through gadgets every day in real time.

Contact the DELOS Team via contact@delosaqua.com or submit via our website contact column at www.delosaqua.com to join our ecosystem. Choose DELOS for your shrimp farming assistance!

03Feb

Fun ReadTips

5 Ways to Process Shrimp to Avoid a Fishy Flavor when Cooking

Shrimp is one of the mainstay menus that are offered in various places to eat. It’s not surprising because this seafood tastes delicious if the method of cooking and processing shrimp is done correctly.

Not only that, but shrimp also has a myriad of health benefits. So for those of you who are connoisseurs of processed shrimp, you will not only get food that spoils your tongue but is also beneficial for your body’s health.

But remember, to get the benefits of consuming shrimp, you must know how to process shrimp first. Here we have summarized it for you.

Also Read: 3 Family Favorite Sweet and Sour Shrimp Recipes

How to Process Shrimp So It’s Not Fishy

1. Get Fresh Shrimp

Before knowing how to process shrimp, you must first buy fresh shrimp of the highest quality. Choose shrimp with a firm texture and a distinctive aroma. Because this is a sign of good quality shrimp.

If you buy frozen shrimp, make sure the shrimp are stored in the freezer, packed tightly, and have no signs of damage to the packaging.

2. How to Clean Shrimp

If you buy frozen shrimp, before cleaning them, you must first defrost them. An easy way to thaw frozen shrimp can be done by placing the shrimp in a bowl of cold water for about 20 minutes.

Meanwhile, if the shrimp you buy are fresh, you can immediately clean them. Cleaning shrimp can be done by removing the head and legs of the shrimp.

Then use a sharp knife to make shallow cuts along the back of the prawns, then remove the veins. After that, rinse the shrimp thoroughly with clean water and drain.

3. How to Peel the Shrimp

After removing the legs and head and cleaning the shrimp veins, the next step is peeling the shrimp skin. You can start by holding the shrimp’s body and carefully pulling the shell, so the shrimp meat doesn’t get crushed.

However, if you like shrimp with the shell on, you can skip this step and leave the shell on the shrimp.

4. Add Lime Juice

Just like seafood in general, shrimp also has a distinctive fishy smell. Therefore, how to process shrimp, so they are not fishy can be done by adding lime juice which can help disguise the fishy smell.

When adding the lime juice, don’t forget to let it rest for 10 to 15 minutes so that the fishy smell of the shrimp completely disappears.

5. Don’t Cook Shrimp for Too Long

After the shrimp are cleaned perfectly, the following way to process the shrimp is to ensure that the shrimp are not overcooked or cooked too long. This is because cooking shrimp for too long can remove the nutrients and make the shrimp meat tough.

Also Read: Easy Crispy Fried Shrimp Recipes To Cook At Home

Fulfill Your Shrimp Needs With DELOS AquaLink!

For a long time, prawns have been a favorite seafood menu for many people. Both when eating at a restaurant or cooking it yourself at home. However, if you cook it yourself at home, you must process the shrimp properly so that their nutrients are not lost.

DELOS is the right answer for you if you need a supply of the best quality shrimp at an affordable price.

Through DELOS AquaLink, you can get shrimp at the best price and unquestionable quality. We can also help you provide other pond needs, such as medicines, feed, logistics, etc.

To become part of AquaLink, contact DELOS directly via contact@delosaqua.com or submit via the contact column on our website www.delosaqua.com. Let’s partner up!

02Feb

AquacultureTips

These are 7 Tips for Successful and Profitable Vannamei Shrimp Harvest

A successful vannamei shrimp harvest is what all farmers dream of. Because, with a successful harvest, the farmers can get enormous profits. However, a good and proper cultivation process is needed to get to that point.

As the final stage in cultivation, harvest is the most awaited stage for the farmers. The harvesting process must be done promptly. There are particular techniques to avoid killing or damaging the shrimp.

So, for this reason, in this article, we will share tips on how to harvest vannamei shrimp correctly and the steps that must be followed to produce a profitable harvest.

Also Read: How to Cultivate Vannamei Shrimp from Preparation to Harvest

Tips for Vannamei Shrimp Harvest

1. Monitor Shrimp Conditions

Vannamei shrimp is a species whose growth period is faster than other shrimp. Therefore, ensure your shrimp have reached their ideal size to get the best yields.

2. Before Shrimp Harvest Time, Make Sure the Shrimp are not Infected with Diseases

Before harvesting vannamei shrimp, farmers need to ascertain whether the shrimp have signs of disease or not. Observations can be made by looking at the shrimp’s physical condition and behaviour.

If shrimp are found to be infected with certain diseases, harvesting activities can be adjusted to mitigate the disease that attacks the pond.

3. Ensure the Pond Water Level is Right

After deciding to harvest shrimp, the pond water level before it begins is the first thing to pay attention to. It would be best if you first lowered the water level by considering several parameters, such as the shrimp biomass in the pond, the area of the pond, the speed of water drainage, the slope of the pond bottom, and so on.

Pond personnel responsible for harvesting must know each pond well to determine the optimal water level before harvesting the shrimp.

When lowering the water level, be sure to do it carefully so that the shrimp are not stressed, which can generally trigger massive moulting.

4. Use Proper Harvesting Techniques for Shrimp Harvest

When harvesting vannamei, it is essential to use proper techniques to minimize stress on the shrimp, for example, by using a net to carefully remove the shrimp from the pond or using a vacuum system to suck the shrimp out of the pond.

Using nets or nets is a manual harvesting technique practised for many years. Meanwhile, many ponds have recently switched to mechanical harvesting using various equipment, such as impeller pumps.

Harvesting mechanically allows farmers to harvest their shrimp more quickly and does not require a lot of technicians to do it. However, farmers must also ensure the post-harvest stage to avoid delays and backlogs that affect shrimp quality.

Also Read: 4 Types of Vannamei Shrimp Harvest Time

5. Complete the Shrimp Harvest in the Optimal Time

Ideally, harvesting process should be completed within a few hours, depending on the area of the pond and the amount of biomass. The goal is for the shrimp in the pond to remain in good condition and not stressed.

Harvest time is also determined by the speed at which the water level drops. In addition, starting harvesting with a water level that is too high can also have unwanted consequences. For example, harvesting time is too long and can cause stress and massive molting.

6. Store Shrimp the Right Way

After harvesting the vannamei shrimp, the next step is storing the shrimp, which must also be done correctly. The goal is to keep the shrimp fresh and maintain their quality.

The usual method is to store the prawns in the fridge and cool them to the right temperature. In addition, make sure the shrimp are not exposed to air with too high humidity.

7. Pack Shrimp Properly

The last tip for harvesting shrimp is packing shrimp in the right way. This is to ensure that the shrimp remains fresh during the distribution process. Packaging can be done by vacuum sealing, refrigerating containers, or packing the shrimp using insulating materials.

Also Read: Get to Know the Vannamei Shrimp as a Farmers’ Favorite

Harvest Your Shrimp at the Best Price with DELOS

Those are seven tips for harvesting vannamei shrimp that farmers must pay attention to maximise yields and produce high-quality shrimp. Because the quality of the shrimp harvested will determine the price.

So, for those of you who want to harvest your shrimp at the best price and in a transparent process, DELOS is the right choice for you.

DELOS is the best science, technology and operational management-based aqua-tech company to help manage your shrimp pond. Including one of them is the harvest process.

The process of harvesting DELOS vannamei shrimp is carried out by experts transparently at the best price.

DELOS also has an integrated supply chain program, AquaLink, to connect you with producers and farm owners to obtain and sell pond products at competitive prices.

Immediately contact the DELOS Team via contact@delosaqua.com or submit via the contact column on our website, www.delosaqua.com, to join the ecosystem and explore new opportunities in the aquaculture sector.

05Jan

AquacultureTips

5 Stages of Vannamei Shrimp Pond Preparation Before Doing Cultivation

Cultivating vannamei shrimp pond is a very profitable business. What’s more, vannamei shrimp is a type of shrimp that grows quickly from fry to harvest. That is, one cycle only takes three months.

Vannamei shrimp pond plays a crucial role in aquaculture. Because, in this pond, the shrimp will be raised until they are ready for harvest later. Therefore, you need to prepare the pond well.

This pond preparation aims to support the formation of an ecosystem conducive to maintaining shrimp during one cultivation cycle. What preparations need to be made, and what are the steps? Read more in this article!

Also Read: 4 Types of Vannamei Shrimp Farms You Have to Know

Vannamei Shrimp Pond Preparation Stages

1. Pond Cleaning

The earliest preparation for vannamei shrimp pond is the cleaning stage. In this stage, waste disposal is usually carried out, especially organic and phosphate waste accumulated at the bottom of the pond.

While the cleaning method can be done in two ways, namely the dry method and the wet method.

a.) Dry Method

Cleaning vannamei shrimp pond using the dry method uses sunlight to dry them. The trick is to drain and let the shrimp pond be in the sun for 10-30 days.

Furthermore, the waste at the bottom of the pond begins to be cleaned and disposed of in a predetermined place. However, this dry method cannot be applied to all parts of the pond, so it must be cleaned using a wet method.

b.) Wet Method

In areas where vannamei shrimp pond cannot be completely drained, they will usually be cleaned using a wet method. This method is carried out by spraying high-pressure air to remove waste from the previous cultivation cycle.

The wet method has an advantage in terms of time compared to the dry method because it only requires a short time, making it more effective and efficient.

2. Liming

After the vannamei shrimp pond are cleaned, the pond must be filled with water and left overnight before rinsing to remove residual waste and increase the pH. This process must be continuously repeated until the pH of the water is above 7.

When the pH of the water reaches 7, liming can be done. The type of lime used in this process is usually CaCO3 or dolomite lime [CaMg(CO3)2] for pond water with a pH close to neutral. Meanwhile, for water pH below 5, hydrated lime [Ca(OH)2] is used.

In addition, you also have to calculate the amount of lime used carefully. This is to avoid the air pH being too high, which can increase ammonia toxicity and result in death in shrimp.

During the process, lime must be spread over the entire pond bottom and up to the top of the barrier. Most of the lime should also be applied over the feeding area and any parts of the pond that remain wet.

Also Read: 4 Types of Vannamei Shrimp Harvest Time

3. Extermination Predators

The next stage of preparation for vannamei shrimp pond is eliminating predators to prevent them from entering the pond area. The way to do this is to filter the water that will be used to fill the pond with a filter with a fine mesh.

These predators or intruders include fish, crustaceans, and other invertebrates that can eat shrimp food or even carry parasites and diseases.

In addition, during the first month of vannamei shrimp cultivation, water should only be added to the pond if the water quality is poor and causes the shrimp not to develop properly. This avoids the entry of competitors or predators for the shrimp.

4. Fertilization

The next step in preparing for the vannamei shrimp pond is fertilization. Shrimp pond must be given fertilizer to stimulate plankton growth to prepare ecosystems and natural food for vannamei shrimp.

Fertilizers must be dissolved before spreading over the pond water surface to avoid fertilizer deposition on the pond’s bottom. This is because the fertilizer settles at the bottom will fertilize the soil and accelerate algae growth.

After fertilization, the plankton will develop in a few days and the water will change color to slightly green.

5. Aeration

The final preparation stage for vannamei shrimp pond is preparing the needs for pond aeration and turbulence. This stage must be carried out based on consideration of production targets, configuration, energy availability, and cultivation systems.

Preparation of aeration aims to ensure the supply of dissolved oxygen, avoid dead currents, direct sediment, and prevent stratification of temperature and salinity in pond water.

The type of aerator used depends on the pond’s area and the water’s depth. For example, a pond with an area of 0.5-1 ha requires four aerators installed in the corners to encourage maximum water flow.

The aerator must be turned on 24 hours before the fry is stocked, so there is enough time to create currents and clean the vannamei shrimp feeding area.

Also Read: 5 Types of Shrimp Pond Aerators and Their Functions

Start Vannamei Shrimp Cultivation with DELOS!

When you want to start vannamei shrimp farming, you need sufficient preparation, one of which is the preparation of vannamei shrimp pond before the cycle starts. Because, in this pond, the shrimp will be raised until they are ready for harvest.

However, no need to worry because DELOS is here for you! DELOS is the best science, technology, and operational management-based aqua-tech company that can help you explore new opportunities in the field of aquaculture.

We use a social, environmental, infrastructure, and regulatory approach to addressing defined farm locations. Apart from that, our Farm Management is also integrated with the AquaHero application, making it easier for you to monitor pond conditions daily.

DELOS also has Aqualink, a supply chain integration program to help our partners get the best products and prices for their shrimp farming.

So, immediately contact DELOS at contact@delosaqua.com or submit your questions via the contact column on our website www.delosaqua.com. Let’s start vannamei shrimp farming with DELOS!

29Dec

AquacultureTips

Vannamei Shrimp Feed Management Tips for Your Anti-Loss Cultivation!

Feed in vannamei shrimp cultivation is an essential component for shrimp growth. In addition, the feed also affects the amount of capital issued by farmers. Not surprisingly, everyone wants to implement good vannamei shrimp feed management, so they don’t lose money.

In addition to feeding management, feed quality also determines the quality of the vannamei shrimp produced at harvest. Feed must contain sufficient nutrition, starting from protein, carbohydrates, vitamins, and minerals.

So, for the vannamei shrimp farming that you are doing to be a big success and of high quality, here are feed management tips that you should pay attention to.

Also Read: Cultivating Vannamei Shrimp with Biofloc System

Food and Eating Habits of Shrimp

Shrimp is an omnivore or all-eating group. Shrimp usually eat phytoplankton, copepods, larvae, and lichens in the wild. Meanwhile, if raised in ponds, farmers usually provide artificial feed as the main feed.

Artificial feed is deliberately prepared for vannamei shrimp, usually in the form of pellets or crumbles. In this artificial feed, shrimp need essential nutrients to grow and develop properly.

The nutrients needed by vannamei shrimp include protein, fat, vitamins, essential amino acids, carbohydrates, and minerals. These nutrients play an important role in the growth and development of vannamei shrimp.

The artificial feed has special criteria, such as having nutrients according to the needs of the shrimp, the feed being easy to digest and the diameter matching the opening of the shrimp’s mouth, and the shrimp’s body quickly absorbing the nutritional content.

Also Read: How to Cultivate Vannamei Shrimp from Cultivation to Harvest

Profitable Vannamei Shrimp Feed Management Tips

Feeding for vannamei shrimp cultivation is an important thing that every farmer must consider. Items that need to be considered include the type, frequency, size, and total feed requirements during cultivation.

Efficient use of feed during vannamei shrimp cultivation is one of the factors for successful cultivation. This is because feed is the most expensive factor of production. For that, here are vannamei shrimp feed management tips that you can use as a reference.

1. Determine the Amount of Feed Based on the Age (DOC) of Shrimp

Determination of the amount of feed given to vannamei shrimp must be based on the age of the shrimp. For example, for shrimp with DOC under 30 days, feeding can be done by blind feeding because feed requirements cannot be calculated accurately.

Meanwhile, when the DOC of shrimp is more than 30 days, farmers must carefully calculate the amount of feed given according to the needs of the shrimp. Usually, the calculation is based on the survival rate, the average body weight of the shrimp, and the feeding rate.

2. Frequency of Feeding

The frequency of feeding is the second thing that must be considered when managing vannamei shrimp feed. Feed consumed by shrimp normally will be processed for 3-4 hours after consumption. This can be a benchmark that you can use in determining the frequency of feeding each day.

In addition, the condition of dissolved oxygen (DO) in the pond can also be another consideration. This is because DO affects the vannamei shrimp metabolic process. Therefore, ensure the feeding is done when the pond water DO is in good condition.

3. Make Sure the Method of Feeding is Done Correctly

Artificial feeding for vannamei shrimp is usually carried out from when the fry begins to be stocked until the harvest. However, the types of feed given are differentiated based on the age (DOC) of the shrimp. In addition, the amount of feed must also be considered carefully so that the shrimp have a sufficient feed.

Feeding can be done in two ways: direct distribution around the pond area and feeding placed in the feed anco.

While still in the early stages of cultivation, feeding in the form of crumble must be mixed with water so that the feeding is evenly distributed, sinks quickly, and does not scatter in the wind. Furthermore, feeding can be spread directly around the pond or using anco.

Also Read: The Efficiency of Vannamei Shrimp FCR for Successful Cultivation

Get the Best Vannamei Shrimp Feed at DELOS AquaLink

Good feed management is the key to the success of vannamei shrimp farming. The nutritional content and type of feed greatly affect the growth and development of this shrimp with the Latin name Litopanaeus vannamei. In addition, the type of feed and the nutritional content in it must also be adjusted to the age of the shrimp.

If you want to get good and quality vannamei shrimp feed, DELOS has a Supply Chain Integration program that can help meet your shrimp pond cultivation needs. It starts from the need for feed, medicine, logistics, and other needs.

This Supply Chain Integration program called DELOS AquaLink that connects our partners with suppliers and buyers to get products with the best quality and price.

To join this program, contact DELOS via contact@delosaqua.com or submit via the contact column on our website www.delosaqua.com. Let’s start doing aquaculture business with DELOS!