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24May

The Efficiency of Vannamei Shrimp FCR for Successful Cultivation

Feed management is one of the determinants of the success of vannamei shrimp farming. To know about this efficiency, we must first calculate the vannamei shrimp FCR.

FCR or feed conversion ratio, is the result of calculating the effectiveness and efficiency of the stocked feed. Through FCR calculations, you can find out whether the feed given is actually eaten by the shrimp or is left over and becomes a waste.

In Indonesian, FCR is also known as rasio konversi pakan, which can indicate the level of efficiency of feed management in every cultivation that is carried out. The smaller the FCR number, the more efficient the feed management is.

Therefore, let’s learn what FCR is and how to calculate it below.

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

What is Vannamei Shrimp FCR?

Feed conversion ratio or FCR is the calculation of the total weight of artificial feed divided by the cultivation’s total weight (biomass). In vannamei shrimp, the ideal FCR value ranges from 1.1-1.2. The smaller the FCR value obtained, the greater the profit obtained by the farmers.

Not only vannamei shrimp but FCR also applies to other aquaculture commodities, such as catfish, salmon, etc. In contrast, the high or low FCR is determined by the type of feed, species, animal size, feeding practices, water conditions, and the run culture system.

The Importance of FCR in Vannamei Shrimp Cultivation

The feed conversion ratio (FCR) is an essential metric in vannamei shrimp farming because it can provide information about the feed’s efficiency during cultivation.

The low number of vannamei shrimp FCR indicates that the feed given to vannamei shrimp is well absorbed and makes cultivation more profitable from an economic and sustainability point of view.

Conversely, a high FCR indicates that the feed is inefficient and can lead to increased costs and lower profits for the farmer. In addition, a high FCR number also harms the environment, especially in terms of water pollution.

Also Read: Vannamei Shrimp Probiotics and Its Benefits for Cultivation

How to Calculate Vannamei Shrimp FCR

To calculate FCR in vannamei shrimp farming, you must first determine the amount of feed given to the shrimp and then measure the weight gain of the shrimp over a certain period.

FCR is then calculated by dividing the feed given to the shrimp by the increase in shrimp biomass. The Feed Conversion Ratio (FCR) formula is as follows:

For example, the shrimp biomass that you cultivate is 1 ton (1000 kg). While the amount of feed that has been given is 1.2 tons (1200 kg). Then the FCR of vannamei shrimp is 1200: 1000 = 1.2.

Also Read: 3 Family Favourite Sweet and Sour Shrimp Recipes

Successful Vannamei Shrimp Cultivation with DELOS

The feed conversion ratio (FCR) can indicate successful vannamei shrimp farming. This requires that farmers cannot be careless in managing feed management.

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. Succeed in vannamei shrimp farming with DELOS!

22May

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!

10May

AquacultureTips

12 Equipments for Vannamei Shrimp Ponds that Must Be Prepared

Vannamei shrimp pond equipment is the main thing that must be prepared before carrying out cultivation. This is because each pond must have its equipment and may be used differently.

Both small-scale and large-scale vannamei shrimp farming requires complete pond equipment, from intensive to semi-intensive ponds. Starting from aerators, and laboratory equipment, to equipment that must be in every pond.

So, here is the vannamei shrimp pond equipment that you have to prepare before cultivating:

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

1. Aerators

The first vannamei shrimp pond equipment is an aerator or water wheel. The aerator plays a role in maintaining dissolved oxygen in the water and controlling the dirt and sludge in each pond.

Several types of aerators include waterwheels with paddle wheels, spiral, pump, vertical, and jet aerators. Meanwhile, the type selection depends on the type of cultivation being carried out.

2. Geomembrane (Plastic Coating)

Geomembrane is a plastic layer used as the bottom of the pond so that pond water does not mix with the soil. This layer maintains air quality to remain clean and not easily polluted.

Usually, the type of geomembrane used is mulch plastic or HDPE with a minimum thickness of 0.50 microns.

3. DO Meters

The DO Meter or Dissolved Oxygen Meter is vannamei shrimp pond equipment that measures dissolved oxygen in pond ponds. During cultivation, farmers must ensure that the supply of dissolved oxygen is at least > 4 ppm so that the shrimp can grow optimally.

4. Refractometer

A refractometer is a tool used to measure salinity in vannamei shrimp ponds. This vannamei shrimp pond equipment is quite important when the pond preparation stage is carried out, namely to measure the similarity of salinity between pond water and water in fry bags.

The optimal salinity level in vannamei shrimp pond water is 15-25 ppt.

5. pH meter

During cultivation, farmers must ensure that the pH of the water is always in optimal conditions. Therefore, a pH meter is needed to measure the acidity level of each pond.

How to use this vannamei shrimp pond equipment is first to take a sample of pond water, and then the pH meter will automatically show the pH number of the water. The optimal water pH for vannamei shrimp is 7.5-8.5.

6. Water Pump

Like water pumps in general, the water pump in vannamei shrimp ponds functions to drain water into the pond during pond preparation. In addition, this water pump also functions to ship the manure from the pond.

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

7. Shrimp Nets

Nets or nets are vannamei shrimp pond equipment needed when the harvest arrives. Not only the whole harvest, shrimp nets are also needed during partial harvesting and daily sampling.

8. Anco

Anco is vannamei shrimp pond equipment that must be in every pond. Usually, anco is placed in the corners of certain ponds with a calmer current. Each pond has one to four anco, which are adjusted to the pond area.

9. Siphon Hose

Siphon hoses in vannamei shrimp ponds are useful for sucking up the sludge at the bottom of the pond and draining it into the sewer. To carry out its function, this hose utilizes the force of gravity and water pressure.

In addition, siphon hoses can be used to detect death or if molting occurs in vannamei shrimp.

10. Secchi Disk

The Secchi Disk is vannamei shrimp pond equipment used to measure the turbidity level of water. Turbid pond water can cause oxygen holding capacity to be low, fish visibility to be reduced, and appetite to be disturbed. Of course, this can impact fish growth which becomes less than optimal.

As the name suggests, Secchi disks are circular, resembling discs whose surface is patterned in black and white. How to use it is quite easy, namely by tying it with a rope and putting it in the water. When the pattern on the secchi disk is no longer visible, the water pond’s brightness limit is at that depth.

11. Lighting Lamp

Lighting is one of the pieces of equipment that must exist in a shrimp pond. This lamp is one of the safety equipment that must be available to make it easier for farmers to monitor the condition of shrimp at night.

Usually, the type of lamp used has a wattage that is not too high, and the light needs to be more brightly. This is because shrimp are quite sensitive to light, which can cause stress to the shrimp.

12. AquaHero

The last name shrimp pond equipment is AquaHero. AquaHero is an application that you can operate via a gadget to record and monitor the growth of your shrimp during cultivation.

With AquaHero, you can also record daily water quality, get recommendations for action based on scientific analysis, and get an estimated Break Event Point (BEP) for cultivation.

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

Profitable Vannamei Shrimp Cultivation with DELOS!

Preparing ponds can be very confusing. This is because many things must be prepared, including vannamei shrimp pond equipment.

However, there’s no need to worry because DELOS is here to help you prepare for vannamei shrimp farming! DELOS is the best science, technology, and operational management-based aqua-tech company that can help you find new opportunities in the field

Our Farm Management is also integrated with the AquaHero app, making it easier for you to monitor pond conditions daily.

DELOS also has AquaLink, a supply chain 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!

24Apr

Tips

How to Reduce Vannamei Shrimp FCR for More Profitable Cultivation

In vannamei shrimp farming, feed management is essential because feed costs around 40-50% of the total costs incurred during cultivation. Therefore, farmers must know how to reduce the FCR (feed conversion ratio) to manage feed costs.

Poor feed management can cause several problems. One that is often encountered is overfeeding. This causes high FCR and production costs during cultivation.

However, before knowing how to reduce the FCR, farmers must first understand what causes the FCR in the vannamei shrimp culture to be high. Come on, see the following discussion to find out.

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

Causes of High FCR

Limsuwan (2010) states five mistakes generally occur in vannamei shrimp feed management practices. These errors lead to high FCR numbers.

1. High Pond Water Temperature

Water temperatures higher than optimal conditions can cause the shrimp’s metabolic system to be disrupted. This causes a decrease in shrimp appetite so that the feed is unused. The accumulation of leftover feed and feces at the bottom of the pond can reduce the quality of pond water, impacting the shrimp’s health. In addition, the growth of the shrimp will also be slow because the feed given needs to be eaten completely.

2. Overfeeding

Overfeeding is a common problem when farmers determine the amount of feed given based on the amount of feed remaining in the anco. On the other hand, farmers must provide feed based on the stocking density of shrimp.

Farmers must know how many fries are stocked in each pond and consistently monitor the survival rate (SR) to determine how many shrimp are left in the pond to calculate the amount of feed to be given.

3. Frequency of Excessive Feeding

Usually, the feeding of vannamei shrimp is 3 to 5 times daily for 4.5 hours.

However, few farmers use a different feeding system, for example, four times a day for only 3 hours. With this feeding frequency, more feed will be left, and the FCR will be high.

4. The Water Flow is Too Fast

In intensive system vannamei shrimp farming, shrimp cultivated with high stocking densities require several ‘wheels’ to maintain optimal DO (dissolved oxygen). However, if the waterwheel current is too fast, the feed will settle in the middle of the pond so that the shrimp will not eat and waste it.

The way to prevent this problem is to turn off some of the waterwheels at the time of feeding so that the water currents do not carry the feed to the pond’s center. However, all the pinwheels should not be turned off simultaneously, especially if the prawns have reached their adult size. This is to avoid the shrimp’s lack of oxygen.

5. Lack of Waterwheels

A sufficient number of wheels in a pond can prevent sediment from accumulating at the bottom of the pond. This causes the oxygen levels in the pond to decrease and fall below the optimal level, which triggers a decrease in appetite and growth of vannamei shrimp so that the FCR becomes high.

In addition, oxygen levels that are not optimal can also make aerobic bacteria not get enough oxygen to break down the sludge and sediment that has accumulated in the middle of the pond, so that anaerobic bacteria will take over the decomposition process with by-products that are harmful to shrimp, such as ammonia, nitrite, and hydrogen sulfide (H2S).

The way to prevent the problem of lack of pinwheels is to reduce the number of shrimp stocked in the pond so that there will be enough oxygen and the pond bottom will remain clean during the rearing period.

Also Read: Vannamei Shrimp Probiotics and Its Benefits For Cultivation

How to Reduce Vannamei Shrimp FCR

1. Make Sure the Water Quality is Always Optimal

Maintaining water quality parameters in maintenance to ensure optimal growth and FCR of vannamei shrimp is important for the growth and health of vannamei shrimp. Shrimp are very sensitive to environmental changes, and optimal water quality is expected to produce a good FCR value.

2. Optimize Stocking Density

Excessive vannamei shrimp stocking densities can result in high FCR because shrimp compete for food and space. Some tips for optimizing the feed conversion ratio (FCR) can be done by giving feed periodically throughout the day, avoiding overfeeding, make sure the feeding is done evenly.

3. Do Regular and Proper Feeding

Shrimp need proper feed intake to grow and achieve optimal feed conversion ratio (FCR). Therefore, farmers must provide feed regularly throughout the day with the appropriate dose based on the age and body size of the shrimp.

4. Adjust the Feeding Frequency

Vaname shrimp must be fed with sufficient frequency to meet their nutritional needs. However, the frequency of this feeding should not be too frequent which can cause the feed not to run out and be wasted.

Excessive feeding can lead to higher FCR due to increased uneaten feed residue. This leftover feed can also damage water quality and reduce growth rates.

Also Read: Types of Vannamei Shrimp Feeds to Make Your Shrimp Grow Faster

Vannamei Shrimp Cultivation More Profitable with DELOS!

How to suppress FCR in vannamei shrimp cultivation is important for farmers to know. This is because a high FCR can occur at any time if the applied feed management is not optimal and causes the cultivation to be less productive.

Now, you can entrust the management of your vannamei shrimp ponds to DELOS! DELOS offers pond management based on science, technology, and the best operational management for more productive vannamei shrimp farming practices.

DELOS farm management is also integrated with the AquaHero application, making it easy for every farm owner and farm personnel to monitor the condition of shrimp ponds anytime and anywhere.

Also, DELOS also has AquaLink, an integrated supply chain program that can help you obtain and sell pond products at competitive prices with the best quality.

You can contact our team via contact@delosaqua.com or submit your vannamei shrimp farming problems on our website at www.delosaqua.com. Vannamei shrimp farming is more profitable with DELOS!

__________

Source:

Limsuwan, C. (2010). How to Prevent High Feed Conversion Ration in Shrimp Farming. Kasetsart University Fisheries Research Bulletin 2020, Volume 34 (1) page 28-34.

21Apr

Tips

Intensive Vannamei Shrimp Cultivation, How to Do It?

Intensive vannamei shrimp cultivation is increasingly being chosen by farmers because of its higher productivity and profitability. But on the other hand, the risks encountered during cultivation are also higher.

In an intensive system, vannamei shrimp cultivation, high technology and capital are needed. Starting from feed that completely relies on artificial feed, using aerators to maintain dissolved oxygen levels, and so on.

Although it requires high capital and technology, the profitability of intensive system cultivation is also high. This is what makes intensive vannamei shrimp cultivation chosen by many farmers.

So, how to do it? Check out the full explanation in this article.

Also Read: 5 Characteristics of Intensive Vannamei Shrimp Pond You Should Know

Method of Intensive System Vannamei Shrimp Cultivation

1. Pond Preparation

Intensive vannamei shrimp cultivation is carried out by spreading fry in large numbers in a relatively small area and a controlled environment. So that farmers must prepare everything appropriately and according to standards so that shrimp can grow optimally, one of which is pond land.

Land preparation is the first step that farmers must take before cultivation. Some of the land preparations for intensive vannamei shrimp cultivation include:

Water treatment in the main reservoir.
Pond construction improvement.
Pond bottom processing which includes drying and liming.
Installing plastic mulch.
Water filling to a depth of 10 cm.
Extermination of pests and pathogens.
Water filling up to 70%.
Plankton growth.
Growth of probiotic bacteria.

2. Spreading Vannamei Shrimp Seeds

The next step for intensive vannamei shrimp cultivation is spreading fry. The number of fries stocked is usually adjusted to each farmer’s production target and the pond’s area.

Vannamei shrimp fry will be stocked after the water quality parameters are optimal. Usually, the fry will be stocked in the morning or at night to avoid stress due to significant environmental differences.

3. Maintenance

In the daily maintenance of intensive vannamei shrimp farming, it is necessary to routinely control water quality parameters and feed and adjust the use of aerators in pond ponds.

The frequency of feeding vannamei shrimp must be adjusted to the shrimp consumption and growth rate. This is useful so that the FCR number remains optimal. Meanwhile, control can be done through anco from each pond.

4. Pest and Disease Control

Disease control in vannamei shrimp cultivation should be carried out with preventive or preventive measures before the disease infects the shrimp. Preventive actions can be carried out by applying biosecurity and immunostimulants.

Meanwhile, disease detection is usually done by observing the body morphology of the shrimp and conducting PCR (Polymerase Chain Reaction) tests in the laboratory periodically.

5. Harvest

The intensive system vannamei shrimp harvest occurs when the shrimp are over 100 days old or have reached a certain weight and size. However, in an intensive system of vannamei shrimp, partial harvest is carried out to reduce the density of the shrimp.

Apart from partial harvests, other types of harvests are usually carried out by farmers, namely normal harvests, abnormal harvests, and emergency harvests.

Also Read: 4 Elements of Vannamei Shrimp Farm Management That Must Be Considered

Choose DELOS for your Vannamei Shrimp Cultivation

Many farmers choose intensive vannamei shrimp cultivation because the profits can be maximized compared to other types of cultivation. However, the risks that must be faced are quite high, so farmers must always pay attention to all aspects of cultivation.

For those who want to practice intensive vannamei shrimp farming to maximize profits, you can start easily with DELOS.

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

DELOS farm management is also supported by the AquaHero application, which can make it easier for you to monitor the condition of the shrimp in the pond just through a gadget every day.

Want to get pond supplies at affordable prices? AquaLink can 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 our website contact column at www.delosaqua.com to get the best offer for your vannamei shrimp farming business. Manage your shrimp ponds with DELOS!

13Apr

Tips

How to Speed Up the Molting Period in Vannamei Shrimp

As a type of crustacean, vannamei shrimp must experience a period of molting or the release of their outer skeleton. Molting can occur several times throughout the shrimp’s life and growth. So, how do you speed up the molting period for vannamei shrimp?

Molting in vannamei shrimp is a hormonal phenomenon that occurs as it grows. The molting process occurs because the shrimp experience an increase in body volume, while the exoskeleton cannot increase in size due to its rigid nature.

The process of molting in shrimp can fail, which can cause death in shrimp. This is what makes the farmers must know how to improve the quality of the pond environment to expedite and accelerate the molting period in shrimp.

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

Molting Stages in Vannamei Shrimp

1. Pre-molt

Shrimp usually pass the first molting phase by preparing its body to release the carapace or outer shell of the shrimp. Usually, the shrimp’s appetite will decrease, and the cuticle layer will begin to grow.

2. Inter-molt

The intermolt phase is the stationary phase where the shrimp cuticle begins to harden. Shrimp mass growth also runs continuously, and their feeding activity is stable or reaches a maximum level.

3. Post-molt

In this phase, the shrimp recover from their previous molt. To strengthen the cuticles and adapt them to their new size, vannamei shrimp will absorb a large volume of water with a high mineral content. The new carapace will harden in a few hours.

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

Molting Phase Vulnerable to Disease

Molting significantly disrupts the shrimp’s body as it needs time to recover after the molting phase. The cuticle is not yet fully functional, so the shrimp must mobilize its body reserves to harden the weak cuticle.

Shrimp, including the White Spot Syndrome Virus (WSS), are susceptible to diseases in this phase. This makes the farmers must always be aware of the various possibilities that will be faced during the shrimp molting phase.

How to Speed Up Shrimp Molting

Although molting is a natural process in the shrimp body, many possibilities can occur during this phase. If the molting process fails, the worst impact that can happen is the death of the shrimp. In addition, other effects can be shrinking the shrimp’s body and slowing its growth.

Basically, the molting process in shrimp cannot be accelerated, considering that this process occurs naturally and is hormonal. However, farmers can expedite the molting process in the following ways.

1. Ensure Shrimp Are Not Stressed

The first way to speed up molting is to keep the shrimp from getting stressed. If the shrimp experience stress, their growth will be hampered, and the disease risk will increase.

Several factors that can cause stress to shrimp include extreme and too fast changes in water quality parameters and poor feed quality.

For the molting process of the shrimp to run smoothly, the farmers must always check the water quality parameters regularly, ensure that they are always in optimal condition, and ensure the feed given to the shrimp is of high quality and has sufficient nutrition.

2. Check Shrimp Conditions Routinely

To ensure that the molting of the shrimp runs smoothly, use pond sampling techniques and carry out periodic inspections to monitor the progress of the molting process.

Check whether the shrimp shell or carapace has begun to harden or has been released. By checking the condition of the shrimp regularly, farmers can evaluate whether the molting is running smoothly and whether the growth of the shrimp is normal or not.

3. Adjust the Amount of Feed with the Molting Stage

By conducting sampling for routine inspection, farmers can find the stages of shrimp molting so that the amount of feed given can be adjusted according to the stages.

For example, in the pre-molt stage, shrimp tend to eat less. Meanwhile, at the inter-molt stage, shrimp feeding activity peaks, meaning farmers must provide a more significant portion of feed than usual.

Adjusting the amount of feed at the vannamei shrimp molting stage can help keep the shrimp healthy and grow more optimally.

4. Provide Additional Nutrition for Shrimp

Providing additional nutrition for molting shrimp, such as calcium and phosphorus, has a good effect on shrimp for the growth of new shells. This extra nutrition can be in the form of feed nutrition or directly into pond water.

In addition, providing additional essential minerals, protein, and other nutrients to shrimp feed and pond water can also help expedite the shrimp molting process.

Vannamei Shrimp Cultivation is More Productive with DELOS

Molting is a natural process in shrimp that basically cannot be accelerated. However, farmers can try to expedite the molting process to prevent molting failure, which can cause the death of the shrimp.

DELOS is the right choice for those who need assistance in vannamei shrimp farming, including mitigating when molting occurs in your shrimp. DELOS is the best science, technology, and operational management-based aqua-tech company that can help you manage vannamei shrimp ponds to be more productive.

DELOS farm management is integrated with the AquaHero application, which makes it easy for you to monitor the condition of your shrimp ponds every day, anywhere and anytime in real-time.

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

06Apr

AquacultureTips

7 Terms in Vannamei Shrimp Cultivation that You Must Know

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25Mar

AquacultureTips

How to Grow Plankton in Shrimp Ponds

There are several practical and easy ways to grow plankton in shrimp ponds. Plankton is an important component during vannamei shrimp cultivation because of its many benefits for shrimp survival.

Naturally, vannamei shrimp ponds contain a lot of plankton. These organisms play an essential role in pond ecology and affect water quality. However, under certain conditions, plankton can also bring problems in cultivation.

Plankton is very diverse, some of which can grow in almost any type of water. However, some are only able to grow in certain environmental conditions. Here’s how to grow plankton in shrimp ponds practically and efficiently.

Also Read: Partial Harvest of Vannamei Shrimp and Its Benefits to Increase Profits

How to Grow Plankton in Shrimp Ponds

1. Add Dolomitic Limestone

The first way to grow plankton in shrimp ponds is to add dolomite lime (CaCO3). Dolomite lime increases the alkalinity of pond water, which is used by nitrifying bacteria to convert ammonia (NH3) to nitrate (NO3), which plankton can use to grow.

2. Add Fermentation

Adding fermentation, such as molasses, can also be another way to grow plankton in shrimp ponds. The existence of this fermented material helps accelerate the growth of plankton in your vannamei shrimp pond.

3. Creating the Right Environmental Conditions for Plankton Growth

Plankton requires special conditions to grow in pond waters. Phytoplankton needs sunlight, nutrients, and carbon dioxide to grow. Meanwhile, zooplankton requires an adequate food source, oxygen, and appropriate water temperature.

To encourage the growth of phytoplankton and zooplankton in ponds, it is crucial to maintain a balance of ecosystems that provide the right amounts of these essential elements.

4. Controlling Nutrition Levels

Nutrient levels in shrimp ponds can have a significant impact on plankton growth. High levels of nutrients such as nitrogen and phosphorus can lead to high algae growth, while low levels of nutrients can result in poor phytoplankton growth rates.

Also Read: This is the Ideal Vannamei Shrimp Pond Design and Construction

Potential Adverse Effects of Plankton on Shrimp Ponds

Although plankton has many benefits, excess amounts of plankton can have negative impacts. For example, at night, in ponds with dense phytoplankton, the respiration of phytoplankton and other organisms can lead to low dissolved oxygen concentrations, suppressing or killing cultured species.

In addition, in ponds with low aeration or even no aeration at all, the presence of high plankton can reduce the depth of visibility under the pond water, which can cause dissolved oxygen concentrations at night to be too low.

Meanwhile, during the day, vannamei shrimp ponds with too many phytoplankton concentrations can cause the water pH to be too high. This is because phytoplankton carries out photosynthesis during the day and can drain water from existing free carbon dioxide.

Also Read: Benefits of Molasses and Tips on Using It for Shrimp Ponds

Choose DELOS for your Shrimp Farm Management!

How to grow plankton in vannamei shrimp ponds is relatively easy. What’s more, plankton has many benefits for cultivation. However, remember that excessive plankton concentrations can also harm cultivation.

Therefore, it is essential for farmers to always maintain the stability of plankton in the pond. For that, you can entrust the management of your shrimp ponds to DELOS!

DELOS is the best science, technology, and operational management-based aquatech startup that can help you manage your shrimp ponds based on aquaculture best practices for the best productivity results.

DELOS farm management is also directly integrated with AquaHero to make monitoring pond conditions easier anywhere and anytime.

Immediately contact DELOS at contact@delosaqua.com or submit via our website contact column at www.delosaqua.com to partner with us. Choose DELOS for your vannamei shrimp farming!

21Mar

Tips

Recognize 10 Characteristics of Fresh Shrimp Before Buying It

It is important for you to know the characteristics of fresh shrimp before deciding to buy it. Shrimp is a delicious and healthy seafood for everyone worldwide to enjoy, but ensuring the freshness of the shrimp consumed is essential.

When buying shrimp, several things need to be considered to determine whether the shrimp are fresh. The shrimp’s color, texture, smell, and physical condition are the leading indicators that need attention.

By understanding the characteristics of fresh shrimp, you can make the right decision before buying it. This is to ensure you get the highest quality shrimp while ensuring it is healthy and safe.

So, what characteristics should you know of fresh shrimp before buying them? Read more in this article.

Also Read: Causes and Ways to Overcome Stress in Vannamei Shrimp

Characteristics of Fresh Shrimp

1. Bright Color

The first and most important characteristic of fresh shrimp is the bright color of the shrimp’s body. This is because the color of the shrimp is directly related to its freshness. Fresh shrimp usually have a clear pink or grayish color.

2. Hard Textured

The texture is hard and slightly chewy, another characteristic of fresh shrimp that you can use as a benchmark. The surface of fresh shrimp should be firm and not slimy. If the shrimp are slimy or mushy, they may not be fresh or have gone bad.

3. Mild Smell

The following characteristic of fresh shrimp is that it has a light fishy smell. If the prawns have a strong fishy odor, this is an indication that they are not fresh. So make sure the fishy smell of the shrimp you choose is manageable.

4. Clear Eyes

Fresh shrimp have clear, bright eyes without any cloudiness or discoloration. The eyes of the prawns are a good indicator of freshness as they tend to get cloudy if the prawns sit too long after harvesting. If the shrimp’s eyes are gray or damaged, this could indicate that the shrimp is no longer fresh.

5. Intact Shell

The next characteristic of fresh shrimp is that they have intact shells and show no signs of cracks or damage. Freshly caught prawns have a shiny, smooth shells. If the shrimp’s shell is cracked or damaged, the shrimp is not fresh.

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

6. Tight Tail

Shrimp tails are tight and tightly curled, indicating freshness. If you get prawns with loose tails, they may not be fresh anymore. Therefore, please pay attention to the shrimp tail before buying it.

7. No Black Spots

Fresh shrimp should not have any black spots on the body. These black spots indicate decay. If you find shrimp in the market or supermarket with black spots on the body, the shrimp is not fresh and has been exposed to bacteria.

8. Not Yellowing

Fresh shrimp tend to be transparent gray. If you find shrimp with a yellow body, this indicates that the shrimp is not fresh and indicates spoilage.

9. No Ammonia Odor

Fresh shrimp should not smell ammonia. This ammonia smell indicates that the shrimp is no longer fresh and starting to go bad. So please pay attention to how the shrimp smell before buying them.

10. Stored in the Right Place

The last characteristic of fresh shrimp is that they are stored in the right place in the refrigerator at a temperature of 0°C to 4°C to maintain their freshness and quality. Keeping shrimp at the right temperature can prevent bacterial growth and preserve their texture and taste.

Also Read: This is the Difference between Male and Female Shrimp

Choose DELOS For Your Shrimp Pond Management!

By knowing the characteristics of fresh shrimp, you can be sure that the shrimp you consume are safe and of high quality. When buying shrimp, look for the 10 characteristics to ensure you get the freshest, best-quality shrimp.

DELOS is the right choice for those who have vannamei shrimp ponds and want to explore the aquaculture industry. DELOS is the best science, technology, and operational management-based aqua-tech company that can help you increase the productivity of your shrimp ponds.

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 DELOS, contact contact@delosaqua.con or submit via the contact column on www.delosaqua.com. Choose DELOS for your shrimp pond management!

17Mar

Tips

Causes and Ways to Overcome Stress in Vannamei Shrimp

Stress in vannamei shrimp is a common problem in aquaculture that can harm growth, health, and shrimp production. What’s more, this shrimp is susceptible to stress due to its sensitivity to environmental changes.

Vannamei shrimp is one of the most widely cultivated species worldwide due to its fast growth rate, high survival rate, and disease resistance.

However, farmers often face the challenge of stress on their shrimp, which can lead to reduced growth rates, decreased survival, and increased susceptibility to disease.

Therefore, we will discuss more deeply how to stress vannamei shrimp. Including the signs and how to overcome them.

Also Read: The Importance of Sea Level Altitude for Aquaculture

Causes of Shrimp Stress

1. Water quality

Poor water quality, including low oxygen levels, high ammonia and nitrite levels, to pH fluctuations, can cause stress for vannamei shrimp during cultivation.

2. Handling and Transportation

Handling and moving shrimp that are rough and not according to standards can also cause stress to the shrimp. This is because shrimp are sensitive to external stimuli, such as shock, exposure to too high a temperature, and overcrowding.

3. Environmental factor

Shrimp are sensitive to sudden environmental changes. Examples include rapid changes in light, temperature, and salinity. This sudden change can be a stress-causing factor for vannamei shrimp.

4. Inappropriate Feed and Nutrition

Poor or inadequate feed quality can cause stress to shrimp. This is because feed with poor quality can cause shrimp to experience an imbalance in the nutrients, vitamins, and minerals they get.

Signs of Stressed Shrimp

Farmers must continue to monitor shrimp during cultivation for signs of stress to prevent a more significant impact of losses. Here are some common symptoms of stress on vannamei shrimp:

Appetite and eating activity is reduced
Reduced activity and behavior become sluggish
Shrimp mortality rate increases
Abnormal swimming behavior, such as swimming in circles and darting.
Poor growth rate
Color change in the shrimp body

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

Impact of Stress on Shrimp

Stress in shrimp has a significant impact on shrimp health and growth. That is why farmers must constantly monitor the condition of the shrimp so they don’t experience stress during cultivation.

1. Lowering Shrimp Immunity

Stress can have a direct impact on the shrimp’s immunity. To be precise, it can significantly lower the immune level. This makes the shrimp more susceptible to disease and infection.

2. Reduced Growth

Stress can indirectly inhibit the growth of vannamei shrimp during cultivation. Stressed shrimp tend to have a disturbed diet, so not as many nutrients are absorbed.

3. Increasing Mortality Rate

Severe or prolonged stress can increase mortality among pond shrimp populations.

4. Behavior Change

Changes in behavior also have a direct impact when the vannamei shrimp are stressed. These changes include decreased activity levels and changes in diet.

How to Overcome Stress Shrimp

Preventing and managing stress in vannamei shrimp requires careful monitoring and management of environmental and physiological factors. Here are some ways to deal with stress on vannamei shrimp:

1. Monitor Water Quality Regularly

Monitoring water quality parameters regularly can be a way of preventing stress on vannamei shrimp. This is because optimal water parameters are the best environment for growing shrimp.

Therefore, regularly check water quality parameters such as temperature, pH, salinity, and dissolved oxygen levels, and make adjustments in case of fluctuations to maintain optimal conditions.

2. Give Enough Nutrition Shrimp

Adequate nutrition can make shrimp grow optimally and avoid stress. Ensure to provide balanced nutrition in feed and probiotics to support shrimp growth.

3. Adjust Stocking Density with Pond Capacity and Cultivation Type

Vannamei shrimp stocking densities that are excessive and not under pond capacity can cause stress to the shrimp. Because shrimp will compete with each other to get food and space for movement.

4. Shrimp Acclimatization

The last way to prevent stress on vannamei shrimp is to acclimate the shrimp gradually to changes in water quality parameters.

Also Read: Types of Shrimp that are Often Cultivated in Ponds

Consult the Condition of Your Shrimp on DELOS!

Stress on vannamei shrimp can trigger various diseases that are detrimental to cultivation. Therefore, farmers must know the causes and how to handle them. Considering that vannamei shrimp is a type of shrimp prone to stress.

When shrimp are stressed, as a farmer, you may need clarification about what steps to take to overcome them. However, now you don’t need to worry because you can consult DELOS directly about the condition of your shrimp.

With the best-dedicated science team, DELOS can help you monitor the condition of your shrimp and take the best action if specific problems arise.

Immediately contact the DELOS Team via contact@delosaqua.com or submit your pond problems in the contact column on our website at www.delosaqua.com. Immediately consult the condition of your shrimp on DELOS before it’s too late!