Aquaculture Archives

Category: Aquaculture

02Jul

Understanding Shrimp Nursery and Its Benefits in Aquaculture

Shrimp nursery is one of the methods used to assist in the growth of shrimp larvae into juveniles (called “benur”) ready for aquaculture. This method offers several benefits, especially in reducing stress levels among benur when they are transferred to cultivation ponds.

Nursery plays a crucial role in helping shrimp adapt to pond environments. Vannamei shrimp, in particular, naturally inhabit brackish waters. Moreover, undenurtured shrimp larvae often struggle to adapt and have higher mortality rates.

For those interested in trying vannamei shrimp nursery, here are the steps:

What is Shrimp Nursery?

Shrimp nursery involves the process of growing shrimp larvae into post larvae. The aim is to increase the survival rate of post larvae released into ponds. Additionally, vannamei shrimp nursery helps farmers obtain uniformly sized and high-quality shrimp.

Also Read: Enhancing Shrimp Farming: The Role of Synbiotics in Boosting Health, Growth, and Disease Resistance in Litopenaeus vannamei

Successful Shrimp Nursery Techniques

1. Prepare the Nursery Environment and Fill with Water

The first step involves preparing the nursery environment and filling it with water. An ideal nursery pond is rectangular and made of concrete. Ensure rounded corners to prevent debris buildup and facilitate water circulation. Before use, the pond should be cleaned, dried, and equipped with aeration systems and blowers for oxygenation.

For water filling, seawater is recommended. Ensure the pond is dry and the installation system is in place before filling. Water is added through an inlet pipe equipped with filters to remove any remaining impurities. Once filled with seawater, add sodium or EDTA (Ethylene Diamine Tetraacetic Acid) at 10 ppm for larval maintenance.

2. Release the Post Larvae

During the nursery phase, the shrimp larvae placed in the pond are nauplii. Before placement, nauplii need to acclimate for 15 minutes to adjust to the pond water temperature.

3. Feeding

At this stage, it’s crucial to pay attention to the type, dosage, and frequency of feeding. Larvae can be fed natural or artificial feeds, but nauplii should preferably be fed natural feeds as they still have their yolk sacs as food reserves. Artificial feeds are only necessary when larvae develop into zoea within 40 hours, requiring fine particles that larvae can consume. Phytoplankton should only be provided up to the mysis stage, then replaced with artemia at the post larvae stage. Feeding doses should be adjusted according to larval stages to maintain health and growth.

4. Proper Water Management

At this stage, regular water exchange in the pond is crucial. Without exchange, leftover feeds and feces can threaten larval health. Water exchange aims to maintain stable water parameters such as temperature, salinity, and pH, preventing stress in larvae due to sudden changes in water conditions.

5. Harvesting Post Larvae Carefully

Harvesting post larvae is done after passing stress tests, salinity tests, and being declared free from diseases and luminescent bacteria. The harvesting process begins by draining 40% of the pond water, installing nets, and opening water channels. Post larvae are caught using harvesting nets, then transferred to buckets filled with water at 28 degrees Celsius. After this process, post larvae are ready for cultivation in ponds by the farmers.

Also Read: Tips to Minimize the Environmental Impact of Shrimp Farming

Vannamei Shrimp Cultivation is More Productive with DELOS!

Vannamei shrimp nursery is an effective method for farmers to achieve high survival rates and improve the quality of vannamei shrimp cultivation.

If you wish to enhance the quality of your vannamei shrimp cultivation, rely on DELOS! DELOS is an aqua-tech company that offers the best in science, technology, and operational management, helping you explore new opportunities in aquaculture.

Contact DELOS via email at contact@delosaqua.com or submit your inquiries through the comment section on our website www.delosaqua.com. Cultivate vannamei shrimp more productively with DELOS!

26Jun

AquacultureTips

Types of Vannamei Shrimp Feeds to Make Your Shrimp Grow Faster

Vannamei shrimp feed is one of the important things that must be considered in shrimp farming. The reason is, each farmer has to spend a lot of money on this feed compared to other pond needs.

In addition, shrimp feed also plays an important role in the growth of vannamei shrimp. If you provide feed with the right dose and nutrition, vannamei shrimp will grow faster, and your cultivation can provide optimal results.

So, what are the types of vannamei shrimp and what are the criterias for a good shrimp feed? Check this article out to get to know about it!

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

Types of Vaname Shrimp Feed

1. Natural Feed

pakan udang vaname — Source: Australian.museum

Vannamei shrimp natural feed is a type of feed that comes from nature without being processed first. This natural food can be phytoplankton and zooplankton which were previously prepared during farm preparation, as well as other animals and plants.

Traditional types of shrimp farms usually rely on this type of natural feed. Meanwhile, in semi-intensive, intensive, and super-intensive farms, natural feed is usually used as a companion to the artificial feed that has been given.

2. Artificial Feed

In contrast to natural feed, artificial feed is a type of feed that undergoes a processing process first to form pellets, crumble, or powder. Usually, a good artificial vannamei shrimp feed has additional nutrients to accelerate the growth of shrimp during cultivation.

Based on the shape, artificial feed is divided into three types, namely pellets, granules (crumbles), and powders.

– Pellet

vannamei shrimp feeds — Source: Freepik.com/racool_studio

Pellets are artificial feed for vaname shrimp in the form of tubes with different levels of hardness. In the pellets, there are usually special nutrients to accelerate the growth of shrimp. Starting from protein, carbohydrates, fat, fiber, and other important nutrients.

Vannamei shrimp feed in the form of pellets is generally used to feed shrimp that have entered the juvenile stage (juvenile) until ready to harvest.

– Granules (Crumble)

pakan udang vaname crumble — Source: Kratonindonesia.com

Granules or crumble are vannamei shrimp feed in the form of coarse granules. Usually, this type of shrimp feed is given to shrimp aged 16-45 days.

Granules can be made from crushed pellets or agglomerated powder feed types. Meanwhile, in terms of nutritional content, the type of vaname granule shrimp feed has nutrients that have been adjusted to the age of the shrimp.

– Powder

Bubuk pakan vaname — Source: Pakanpabrik.com

The last type of vaname shrimp feed is powder. This type of feed has a fine grain texture that is suitable for shrimp under 16 days of age. Because, at that age, shrimp can only catch foods with small textures.

Also Read: 10 Types of Shrimp for Aquaculture and Aquascape

Good Vaname Shrimp Feed Criteria

Before feeding vaname shrimp, you must first make sure that the feed you are going to give is still feasible. This is because spoiled and improper feed can have a negative impact on the quality of shrimp development.

There are several criteria for good feed that need to be considered before you spread it, including the following.

Characteristics of Good Vannamei Shrimp Feed

Looks good without mold
Dry
No clumping
Undamaged
Has a distinctive smell
Whole packaging
The shape is uniform
Water stability 2-3 hours
Has a strong attarctant smell

The Characteristics of Damaged Vannamei Shrimp Feed

Moldy
Wet
Clumping
Damaged
Musty smell
Packing tear
Have different shapes
Water stability less than 2-3 hours
The smell of attractant is faint

Also Read: 7 Easy Ways to Cultivate Vannamei Shrimp for Beginners

Entrust Your Feed Supply to DELOS

Choosing a good feed is the key to the success of vaname shrimp cultivation. 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 vaname shrimp feed, DELOS has a Supply Chain Integration program that can help meet your shrimp farming needs. Starting from the needs of feed, medicine, logistics, and other needs.

The Supply Chain Integration program is a DELOS program that connects our partners with suppliers and buyers to obtain products of the highest quality and price.

To join this program, you can contact DELOS via mail at: contact@delosaqua.com or submit via the contact column on our website www.delosaqua.com. Let’s start shrimp farming with DELOS!

24Jun

Aquaculture

Effect of Water pH on Vannamei Shrimp Cultivation

Vannamei Shrimp is one of the world’s most popular cultivated shrimp species. This shrimp is known for its high growth rate and great taste. However, the growth of vannamei shrimp is also influenced by pond water quality parameters, one of which is pH.

pH measures a solution’s degree of acidity or alkalinity on a scale of 0 to 14. The pH of pond water in good Vannamei shrimp farming ranges from 7.5-8 in the morning and 8-8.5 during the day.

So, what if pond water’s pH could be more optimal? Read more in the following article.

Also Read: These are 11 Characteristics of Healthy and Diseased Shrimp

What is pH?

pH is a measure of the acidity or alkalinity of a solution indicated by a logarithmic scale ranging from 0 to 14. pH 7 indicates a neutral condition, a pH less than 7 indicates an acidic condition, while a pH greater than 7 indicates an alkaline state.

How to Check pH

You need a pH test kit, such as pH indicator paper, to determine the pond’s pH in Vannamei shrimp farming. Here are the steps for measuring pH using pH indicator paper or a pH meter that you can follow:

Collect a sample of the shrimp pond water in a clean container.
Dip the pH indicator strip into the water sample or use a pH meter to measure the pH value directly.
Wait for the pH indicator strip to change color or for the pH meter to stabilize its reading.
Match the color of the pH indicator strip to the color chart or read the pH value that appears on the pH meter.
Record and compare the pH measurement results with the optimal pond pH range for Vannamei shrimp farming.
If the pH is outside the optimal scope, take the necessary steps to adjust it.

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

Effect of Water pH on Vannamai Shrimp Cultivation

The pH level of pond water can significantly impact shrimp’s health and growth. A pH level that is too low or too high can cause stress on the shrimp, thereby reducing the growth rate and making it more susceptible to disease.

The low pond water’s pH can also cause the shrimp skin to become porous and soft due to the disruption of changing new skin. Also, shrimp can die if the pond water pH is < 4 or > 11.

Therefore, maintaining pH stability in the ideal range is very important for the success of Vannamei shrimp culture. This can be achieved by regularly monitoring water quality and using buffers or other pH adjustment treatments.

How to Maintain Optimal pH for Vannamei Shrimp?

Maintaining optimal pH stability in Vannamei shrimp culture requires regular monitoring and adjustment of water conditions. Here are some things you can do to maintain pH stability to keep it optimal:

1. Routine Monitoring

pH stability must be monitored regularly using a pH meter or pH indicator paper to ensure that conditions are in the optimal range for the growth of Vannamei shrimp.

2. pH adjustment

If the pH level is too low, it can be adjusted by adding a base such as sodium bicarbonate. Meanwhile, if the pH level is too high, it can be lowered by adding molasses.

3. Water Change

Regular water changes can also help maintain a stable pH level where waste products from shrimp farming that can change the pH concentration are also removed.

4. Avoid Overfeeding

Overfeeding can lead to a higher accumulation of waste products and decreased pH levels. Ensure you feed the right amount and immediately clean up the leftover feed that doesn’t run out.

Also Read: 12 Equipments for Vannamei Shrimp Ponds that Must Be Prepared

Vannamei Shrimp Cultivation More Profitable with DELOS

For those of you who want to start vannamei shrimp farming that is environmentally friendly and based on accurate scientific research, DELOS is the right partner for you.

DELOS is the best science, technology, and operational management-based aquatech company that can help you increase the productivity of your shrimp ponds while practicing sustainable and environmentally friendly shrimp farming.

DELOS farm management is also integrated with the AquaHero application, which makes it easy for you to easily monitor the condition of your shrimp ponds every day just through a gadget.

Contact DELOS at contact@delosaqua.com or click the WhatsApp icon on this page to connect directly with us. Increase your pond productivity with DELOS!

21Jun

AquacultureTips

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

Molting in shrimp is replacing the old shell with a new one which always occurs in every shrimp life cycle. This is because shrimp are crustaceans whose body surface is covered by an exoskeleton called a cuticle.

The molting process is often the thing that most farmers worry about. Because shrimp will be more susceptible to disease in this phase, however, the molting process will always occur as the life of the shrimp develops.

Let’s get to know in more detail what molting is and how it’s done in this article!

Also Read: 7 Characteristics of High-Quality Vannamei Shrimp Seed

What Is Molting in Shrimp?

In simple terms, molting can be referred to as replacing the outer shell layer in shrimp. During the molting process, after the outer shell layer of the shrimp is shed, the same layer of skin will grow to replace it.

Molting Process in Shrimp

The molting process in vannamei shrimp is divided into four stages: post-molt, molting, inter-molt, and pre-molt.

1. Post Molt

Post-molt is the phase where the shrimp has just experienced the release of the exoskeleton from the previous molt process. Usually, in this phase, the shrimp will absorb a lot of water to strengthen their new cuticles.

2. Molting

Molting is the phase when the shrimp begins to shed its outer shell. For the shrimp’s exoskeleton to fall off entirely, the shrimp will relax its muscles and slowly start to come out of its old body.

3. Inter-Molt

The shrimp exoskeleton will harden during the inter-molt phase because the shrimp absorbs more protein and minerals during this phase. Meanwhile, shrimp appetite is not disturbed and even tends to increase.

4. Pre-Molt

Pre-Molt is when the shrimp prepares for the following molting process. The cuticle layer will slowly grow and be visible to the naked eye. Usually, in this phase, the shrimp appetite will decrease than usual.

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

How Often Does Molting Occur?

Under healthy conditions, adult shrimp molt or change their skin every 3 to 4 weeks. However, younger shrimp will change their skin more frequently, every 1 to 2 weeks, to be precise. This is because young shrimp experience a faster growth process.

Meanwhile, replacing old shells with new shells in shrimp only takes a few hours.

How to Handle Shrimp When Molting

In a way, molting is a reasonably crucial phase in shrimp farming. The reason is shrimp that fail in the molting phase will die. Therefore farmers need to ensure the molting process runs smoothly.

In this case, several technical conditions must be considered for the smooth running of the molting process, starting from the quality of pond water maintained, the level of calcium and other minerals in the water remaining stable, and so on.

In addition, remember to adjust the shrimp feed given. Remember, during the inter-molt phase, the shrimp’s appetite will increase. Meanwhile, during the pre-molt phase, shrimp appetite tends to decrease.

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

Start Vannamei Shrimp Cultivation with DELOS!

The molting process in shrimp is a natural process that must occur in every shrimp life cycle, so this process cannot be avoided. Therefore, every farmer needs to prepare for every molting phase that will be faced.

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

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 a Supply Chain Integration program called AquaLink 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!

19Jun

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.

05Jun

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!

24May

AquacultureTips

This Is the Best Water Color for Vannamei Shrimp Pond

Pond water is an indicator that must always be considered when cultivating. The best color for vannamei shrimp pond is brownish green and dark green. This colors can describe the living conditions of the shrimp in it. However, this color only becomes a benchmark and farmer needs to check it with other indicators regularly.

Each pond can have a different color of the water. This color can indicate the types of organisms that are in it. Through the visible colors of pond water, farmers can identify anomalies and predict if problems arise.

What color of water is the best for vannamei shrimp pond? Let’s learn about it through this article!

Also Read: 5 Types of Shrimp Pond Aerator and Their Function

The Meaning of Pond Water Colors

The color of pond water is not always bright blue like seawater. Many color variants indicate certain conditions in ponds. Here are the meanings of pond watercolors that you need to know.

1. Greenish Yellow

The color of pond water greenish yellow is indicating that the amount of phytoplankton in the pond is still unstable, so TSP or urea is needed. Farmers must carry out routine checks to observe changes when applying this fertilizer. If it is still changing and not stable, farmers can add dolomite lime.

2. Brownish Green

When pond water is green-brown, it means that the water contains sufficient phytoplankton. This color is the best color for vannamei shrimp pond. However, to maintain its stability, it is necessary to apply fertilizer every week.

3. Blue Green

The bluish-green color in vannamei shrimp ponds indicates abundant blue-green algae phytoplankton. This shows that there are porous shrimp, and it is necessary to replace the water, add dolomite lime, and apply TSP fertilizer.

4. Dark Green But Not Concentrated

The color of pond water is dark green, indicating that the amount of phytoplankton in the water is relatively stable. This color is the best water color for vannamei shrimp pond. Meanwhile, to optimize it, farmers can give a little TSP fertilizer while continuing to observe if there is any changes.

5. Deep Dark Green

When pond water is thick dark green, and feels slimy, this indicates that there is toxic phytoplankton which can cause many shrimp to get sick. Of course, this color is not the best color for vannamei shrimp pond and farmer must avoid it.

But there is no need to worry about overcoming this can be done by replacing water and giving dolomite lime.

6. Dark Brown

The dark brown color of pond water indicates a lack of phytoplankton growing in it. To overcome this, urea and TSP fertilizers can be used, and further land reclamation is needed.

7. Reddish Brown

When the color of the pond water is reddish brown, this indicates a high content of toxic phytoplankton and sulfuric acid. To deal with this, you need to neutralize it by changing the water, giving lime, giving urea fertilizer, and rinsing the pond repeatedly.

8. Black

The black pond water color indicates that the phytoplankton is not growing properly. In addition, this color can also be an indication of the amount of decaying organic matter at the bottom of the pond. Of course, this color is not the best water color for vannamei shrimp pond.

The only way to overcome this condition is to remove the sludge that has settled at the bottom of the pond until it runs out.

Also Read: 7 Characteristics of High-Quality Vannamei Shrimp Seed

Indicators of Pond Water Quality

Knowing the quality of pond water is an important thing that must be done every day. This is to make it easier if there are changes or anomalies, farmers can take steps as quickly as possible.

Not only observing the color of pond water which is suitable for vannamei shrimp but there are also other indicators that must be monitored regularly every day. The following are the indicators:

1. Pond Water Color

As previously explained, the color of pond water indicates the quality of the water in it. The best color for vannamei shrimp pond is dark green without slime and light brown.

2. Pond Water Brightness

Good pond water brightness ranges from 25-60 cm. Meanwhile, the brightness number is below it. In that case, it is difficult for sunlight to penetrate the water, resulting in low water temperatures and the photosynthesis process not running optimally.

3. Pond Water pH

pH is the level of acidity of water that is measured physically and greatly affects the organisms that live in it. The ideal pond water pH ranges from 7.5-8.5. Changes in pH in vannamei shrimp ponds can cause shrimp to become stressed. Therefore, it is vital to keep the pH ideal.

4. Dissolved Oxygen

Dissolved oxygen, also known as DO, supports shrimp in the respiration process. This indicator also dramatically affects the growth of shrimp. Usually, to keep the DO stable, aerators are used according to the needs of each pond.

5. Water Temperature

The ideal pond water temperature ranges from 28-31 degrees Celsius. Farmers must maintain this perfect temperature to remain stable every day. This is because temperatures that decrease or increase drastically can cause the death of shrimp in large enough numbers.

6. Pond Water Alkalinity

A good level of alkalinity concentration for vannamei shrimp is 130-180 ppm. This alkalinity is the ability of water to neutralize additional acids without lowering the pH level of the water. Alkalinity indicators need to be monitored regularly because they directly affect the growth of shrimp and supporting microorganisms in pond ponds.

7. Water Salinity

The ideal pond water salinity ranges from 15-25 ppt. This salinity condition must be maintained to remain stable. This is because less salinity can result in less optimal shrimp growth. In addition, too fast fluctuations in salinity can also cause stress in shrimp and can trigger death.

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

Monitor Pond Water Conditions with AquaHero

The best water color of vannamei shrimp pond is green water. However, this color only becomes a benchmark and must be checked with other indicators regularly.

When checking the good watercolor for vannamei shrimp and other indicators, farmers need to record it correctly so that it can be recorded systematically, and if there is an anomaly, the farmer can find out immediately.

Now you can easily record pond water indicators by using the AquaHero application. Through this application, you don’t need to record manually using a spreadsheet.

The AquaHero application also has excellent features such as a water quality index, monitoring the condition and growth of shrimp, a recommendation feature, and a pond financial monitoring feature. These features will be handy to avoid the cultivation failures that you do.

To get the AquaHero application as a cultivation companion, contact contact@delosaqua.com or via the contact column on our website www.delosaqua.com. Vannamei shrimp farming is easier and more productive with DELOS!

22May

AquacultureTips

Vannamei Shrimp Salinity and How to Control Its Stability during Cultivation

Vannamei shrimp salinity is an essential factor that must be considered when cultivation occurs. This is because salinity significantly impacts the health and growth of shrimp in ponds.

Vannamei shrimp, also known as white leg shrimp, are shrimp native to the Pacific Ocean that can tolerate various levels of salinity. However, the optimal salinity for vannamei shrimp is around 15-25 ppt with a pH level of 7.5-8.5.

If the water salinity is too high, vannamei shrimp can become stressed, and their growth will be less than optimal. On the other hand, if the salinity is too low, the shrimp cannot absorb enough oxygen resulting in respiratory problems.

So, for those who want to know more about vannamei shrimp salinity and how to control its stability during cultivation, check out the following article.

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

What is Water Salinity?

Water salinity refers to the amount of salt content in seawater, river water, or lake water which is calculated in ‰ (thousand/ppt). For vannamei shrimp, the optimal range of water salinity is around 15-25 ppt which allows the shrimp to absorb sufficient oxygen.

The salinity of vannamei shrimp must be monitored and tested regularly during cultivation. This aims to ensure that the salinity rate remains within the optimal and stable range.

If the salinity is too high, it can be reduced by adding fresh water to the system. Meanwhile, if the salinity is too low, it can be increased by adding a brine or salt mixture to fresh water.

Also Read: This is The Best Water Color for Vannamei Shrimp Pond

How to Control the Stability of Pond Water Salinity

Maintaining the stability of vannamei shrimp salinity during cultivation is very important. This is because the saltiness of the water directly affects the health and growth of shrimp.

For vannamei shrimp, the ideal water salinity is around 15-25 per thousand (ppt). At this salinity level, vannamei shrimp can absorb sufficient oxygen through their gills and are less likely to experience stress or disease.

To ensure that the salinity of the water is at the proper level, farmers need to test and monitor the water regularly using a salinity meter or hydrometer.

Usually, the best time to measure salinity is in the morning and evening. Because, at these times, the salinity can change due to the influence of water evaporation by sunlight. In addition, when it rains, there is usually a decrease in the salinity due to the volume of rainwater entering the pond.

Not only that, but farmers also have to keep the water clean and have a stable dissolved oxygen content. This is so that the growth and health of the shrimp are appropriately maintained.

If the vannamei shrimp salinity is too high during the measurement, the farmer can anticipate this by adding fresh water up to the initial height before evaporation occurs.

Meanwhile, farmers can dispose of fresh water on the pond’s surface if the water salinity is low. This is because freshwater has a lower density than salt water, so freshwater is on the pond’s surface.

By following these guidelines and properly managing water salinity, shrimp farmers can help ensure the health and growth of their vannamei shrimp, leading to higher yields and profits.

Also Read: Do These 5 Things for Succesful Vannamei Shrimp Cultivation

Vannamei Shrimp Cultivation More Productive with DELOS

Overall, proper management of water salinity is essential for successful vannamei shrimp farming. By maintaining adequate salinity levels, shrimp farmers can help ensure the health and growth of their shrimp, resulting in higher yields and profits.

To make your vannamei shrimp farming easier, DELOS offers Farm Management to manage your shrimp ponds. DELOS is the best science, technology, and operational management-based aqua-tech company that can help your vannamei shrimp farming succeed.

DELOS Farm Management is also integrated with the AquaHero application, making it easy for every farm owner and personnel to monitor their shrimp ponds daily.

Also, DELOS has an integrated supply chain program, DELOS AquaLink, which can help you get and sell pond products at the best price and quality.

Contact the DELOS Team via contact@delosaqua.com or submit your questions about vannamei shrimp farming through our website contact column at www.delosaqua.com. Make successful vannamei shrimp farming with DELOS!

20May

Aquaculture

The Importance of Wastewater Treatment Plant (WWTP) for Shrimp Ponds

The importance of WWTP or Wastewater Treatment Plant has recently become a concern in every shrimp culture. This is because WWTP functions to manage waste generated from ponds.

The waste generated from vannamei shrimp farming usually consists of water mixed with feces, leftover feed, and other organic debris. These wastes can cause water to become cloudy and polluted if not appropriately managed.

Therefore, let’s get to know more deeply the importance of WWTP for the following shrimp ponds.

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

Characteristics of Wastewater

As long as vannamei shrimp farming takes place, pond water can produce waste consisting of shrimp droppings, leftover feed, and organisms often found settling at the bottom of the pond.

This wastewater can become a pollutant that harms the environment. However, pollutant levels depend on the length of rearing, the stocking density of vannamei shrimp, the substrate in the pond, and the construction of the pond.

If measured by water quality parameters such as biological oxygen demand (BOD), total suspended solids (TSS), entire organic matter, turbidity, total nitrogen (TN), and total phosphate (TP), wastewater will show exceptionally high levels.

Wastewater Treatment Process

Treating vannamei shrimp pond wastewater usually considers two things: effective processing and efficiency in reducing pollutant levels. At the same time, the processing techniques are divided into three types, namely mechanical, chemical, and biological processing methods.

Meanwhile, the importance of WWTP in shrimp ponds is used to avoid chemical waste processing. This is because processing with chemical techniques can harm the environment. After all, it can threaten food safety.

Mechanical waste treatment is carried out through a settling process to reduce TSS. The settling process can be carried out in several ways, such as by filtering or slowing down the water flow’s speed so that it does not exceed 20 m/s.

While wastewater treatment with biological processes is carried out under aerobic, anaerobic conditions, or a combination of both. Aerobic conditions are usually used for wastewater treatment with a BOD load that is not too large, while anaerobic biological processes are used for wastewater treatment with a high BOD.

Biological wastewater treatment is divided into three: suspended culture, biological processes with attached cultures, and processing with lagoon or pond systems.

Also Read: Tiger Shrimp vs Vannamei Shrimp, Which One is Better for Cultivation?

Stages of Waste Treatment Through the WWTP System

The WWTP system helps farmers to treat pond water waste, so it is safe for the environment. The waste treatment process through the WWTP system usually consists of three stages:

1. Filtering

Waste from the vannamei shrimp farming process is first filtered through filter media such as cloth or biological media such as rock which can capture large particles such as dirt and leftover feed.

2. Biological Approach

After the waste is filtered, the waste is treated biologically using bacteria that can decompose organic waste into gas and water.

3. Clearing

After the waste is decomposed into gas and water, the water is filtered to remove any remaining particles. After that, the water can be reused for vannamei shrimp cultivation or discharged into the environment with a level of turbidity per the standards applied.

Using the WWTP system, the waste generated from vannamei shrimp farming can be appropriately managed so that it does not cause water pollution and damage the environment.

Factors Influencing WWTP Design

The design of the Wastewater Treatment Plant (WWTP) is influenced by several factors, including:

1. Waste Water Volume

WWTP design is influenced by the volume of wastewater produced because the volume is used to determine the capacity of wastewater treatment units. If the volume of sewage is large, the capacity of the treatment unit must be made large to accommodate it.

2. Wastewater Flow Rate

The velocity of wastewater flow dramatically affects the sedimentation process. The sedimentation process can be optimal if the water flow rate is < 20 m/sec.

3. Availability of Land and Space

The amount of land or space for a wastewater treatment plant is determined by several factors: the volume of wastewater that must be treated and the level and variety of wastewater pollution materials.

4. Cost Availability

Construction of ponds, operations, and maintenance of WWTP requires a lot of money, and the amount depends on the technology and equipment used.

Also Read: This Is the Best Water Color for Vannamei Shrimp Pond

Vannamei Shrimp Cultivation Makes More Profits with DELOS

That is the importance of WWTP (Wastewater Treatment Installation) in vannamei shrimp cultivation. In each cultivation, pollutant levels depend on the length of maintenance, the stocking density of vannamei shrimp, the substrate in the pond, and pond construction.

The importance of WWTP is indeed a severe problem, especially for shrimp ponds with high stocking densities. However, not all fish farmers understand everything about WWTP.

To make it easier for you to cultivate vannamei shrimp, including regarding WWTP, DELOS offers Farm Management to manage the shrimp ponds you have. DELOS is the best science, technology, and operational management-based aqua-tech company that can help your vannamei shrimp farming succeed.

DELOS Farm Management is also integrated with the AquaHero application, making it easy for every farm owner and personnel to monitor their shrimp ponds daily.

Also, DELOS has an integrated supply chain program, DELOS AquaLink, which can help you get and sell pond products at the best price and quality.

Contact the DELOS Team via contact@delosaqua.com or submit your questions about vannamei shrimp farming through our website contact column at www.delosaqua.com. Succeed in vannamei shrimp farming with DELOS!

17May

AquacultureTips

5 Things You Need to Do When Starting a Shrimp Farm Business

Having a Shrimp farm business is a promising example of economic activity in the aquaculture sector. Usually, this cultivation activity is mostly carried out in coastal areas.

Along with the increasing demand for shrimp in the global market, many people are starting to get interested in this world. What’s more, the shrimp farming business has very lucrative results.

However, before starting this business, some things need to be considered, so your business does not lose money. Let’s see what these things are.

Also Read: 4 Types of Vannamei Shrimp Harvest Time

1. Choose The Right Farm Location

The selection of a pond location is the first thing that must be considered when starting a shrimp pond business. It aims to get a suitable and precise location according to the criteria. A good pond location must pay attention to the topography level, the soil’s content, and the water supply’s adequacy.

2. Make Sure to Choose Ideal Shrimp Fry

The fry is shrimp seeds. This term refers to the chicks that have entered the post-larva stage and are ready to be stocked into the pond. The ideal fry has a big impact on the success of shrimp farming.

Therefore, choose and prepare the best fry for those just starting a shrimp farming business. The ideal fry criteria include disease free and resistant.

3. Prepare Farm Equipment and Tools

When starting a shrimp farming business, you don’t only need pond land and fry. But there are a series of tools to support the sustainability of your cultivation. Starting from anco, waterwheels, and pumps, to laboratory equipment.

Each pond must have its equipment and should not be used interchangeably. Because this is to avoid confusion about the results of the examination of the condition of each pond pond.

4. Ensure the Right Feeding Management

Feeding in shrimp farming must be done appropriately and efficiently in terms of time and amount. This is because most of the capital in shrimp farming is spent on feeding.

Feeding time in the shrimp farming business is usually regulated in feed management, whose quantity has been adjusted and calculated based on the age of the shrimp. In addition, the feeding area (feeding area), feeding level (feeding level), and frequency of feeding (feeding frequency) are also considered in

5. Do Regular Water Quality Observations

Before starting a shrimp farming business, the last thing that must be considered is observing water quality. By observing water quality, each farm personnel can find out if changes or fluctuations in parameters may harm shrimp development.

Usually, water quality observations are carried out physically, chemically, and biologically. Measurements of physical parameters can be directly carried out when in ponds. Meanwhile, chemical and biological parameters must be carried out in the laboratory.

Also Read: What is MBW Term in Shrimp Farming and How to Calculate It?

Increase the Business Productivity of Shrimp Farms with DELOS!

Starting a shrimp farming business cannot be done carelessly. Many things must be considered so that your shrimp cultivation has high productivity.

To make your shrimp pond more productive, you can entrust the management of your shrimp pond to DELOS. With a team consisting of the top 99 best people in Indonesia, DELOS is ready to help you through our Farm Management.

DELOS Farm Management is also integrated with the AquaHero application, making it easier for farmers to monitor the condition of their ponds. So what if a disease is detected? No need to worry, DELOS also has a dedicated scientist who can help you to mitigate if a disease is detected in your shrimp pond.

Contact DELOS via contact@delosaqua.com or submit a problem you want to discuss vannamei shrimp cultivation via contact on our website www.delosaqua.com. Shrimp farming business with the best results with DELOS!