26May

Challenges in Aquaculture Industries: Building a Sustainable Future

Aquaculture is cultivating aquatic organisms, which is increasingly relied upon to meet the growing demand for seafood consumption and reduce fishing practices in the ocean. Despite offering significant potential for food security and economic growth, several challenges in aquaculture require careful consideration and innovative solutions.

In this article, we will further discuss the challenges in aquaculture and the steps taken to ensure the long-term sustainability of this industry.

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

Challenges in Aquaculture

1. Environmental Impact

Environmental impact is the biggest challenge in aquaculture that needs to be addressed if cultivation practices are not carried out properly. Responsible practices are essential From waste management to using feed and medications.

To tackle this challenge, stakeholders in the aquaculture industry must focus on implementing sustainable practices such as optimizing feed efficiency and adopting sustainable aquaculture systems with proper waste management.

2. Disease Management

Disease outbreaks pose a significant threat to the aquaculture industry. They can cause economic losses and environmental degradation. Therefore, industry stakeholders must be prepared and vigilant in disease management.

Some measures that can be implemented for disease management in aquaculture include strict biosecurity protocols, vaccination programs, and the development of disease-resistant strains through selective breeding and genetic improvement.

Adopting technology with early monitoring and detection systems through applications like AquaHero can also be a viable option for farmers.

3. Food Production

Food production is a problem that can be addressed through aquaculture, but it can become another issue if not practiced well. Seafood is an important source of nutrition for individuals, besides being more affordable.

By 2030, 62% of seafood supplied and consumed by humans will come from aquaculture. Furthermore, the UN projects that by 2050, there will be 9.7 billion people on Earth, leading to a continuous increase in food demand.

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

4. Regulatory Framework

Establishing effective regulations and governance structures is crucial for sustainable aquaculture practices. The development of the aquaculture industry and environmental conservation must always be balanced.

Therefore, transparent and science-based regulations and policies are needed to ensure responsible practices, encourage investment, and build public trust.

In this regard, collaboration among governments, industry associations, and other stakeholders is necessary to develop strong standards and guidelines that support responsible aquaculture practices.

5. Social Acceptance

Perceptions and public acceptance of aquaculture are also one of the challenges in the industry. Concerns about environmental impact, animal welfare, and food safety can influence public support for this industry.

Socialization programs to increase awareness can help address this issue while promoting the positive aspects of aquaculture itself. For example, addressing overfishing, providing sustainable protein sources, and involving local communities directly.

6. Water Quality Management

Another issue in aquaculture is water quality management. Aquaculture practices heavily rely on water quality management, and the quantity and quality of water supply used to rear aquatic organisms are crucial for successful cultivation.

Almost all aquaculture commodities depend on optimal water quality parameters such as dissolved oxygen, temperature, salinity, hardness, ammonia, nitrite, and pH as the environment in which they live and grow.

Also Read: The Importance of Alkalinity in Shrimp Ponds, Check Your Alkalinity Now!

Start Your Vannamei Shrimp Farming Business with DELOS!

The global demand for seafood continues to rise, making aquaculture an increasingly popular choice. However, the industry also faces various challenges. Despite its shortcomings, there have been advancements like those made by DELOS to ensure sustainable practices.

DELOS is an aqua-tech company that provides technology, knowledge, and research to optimize the productivity and management of your vannamei shrimp farming.

DELOS‘ vannamei shrimp farming is supported by the AquaHero application, which enables you to monitor the conditions of your shrimp ponds. From water quality to shrimp growth, required treatments, and estimated break-even points (BAP).

Contact contact@delosaqua.com or submit your vannamei shrimp farming issues in the contact section of our website, www.delosaqua.com. Start your vannamei shrimp farming business with DELOS!

19May

AquacultureFun Read

5 Characteristics of Intensive Vannamei Shrimp Pond You Should Know

An intensive vannamei shrimp pond is a type of pond that was developed as a means to increase the productivity of vannamei shrimp aquaculture. However, on the other hand, intensive ponds also produce more waste due to their high stocking density.

The waste from this intensive pond comes from the feed given to vannamei shrimp, usually in the form of carbon, nitrogen, and phosphorus compounds. These three compounds can decompose naturally on their own but in a longer time than one cultivation cycle. Therefore, waste will accumulate if the leftover materials from a prior process are not correctly disposed of.

In addition to residual waste, the calculation and layout of intensive vannamei shrimp ponds are more complex when compared to other types of ponds.

Also Read: Latest Vannamei Shrimp Prices in Indonesia

Characteristics of Intensive Vannamei Shrimp Pond

Vannamei shrimp-intensive ponds have unique characteristics that are different from other types of ponds. This is influenced by the stocking density of this type of pond. The characteristics of vannamei shrimp ponds are as follows:

1. Not Affected by Tidal Cycles

Water sources in intensive ponds do not depend on the ebb and flow of seawater. So, even when the sea water recedes, the water in the pond will not be affected.

2. Regularly Shaped Pond Plot

Intensive ponds have a regular pond shape. Usually, it is a square with an area of 0.2-0.5 ha per plot.

3. Using Aeration System

Another characteristic of intensive ponds is the existence of an aeration system in ponds that is useful for increasing dissolved oxygen in pond waters. This aeration system is usually supported by waterwheels, blowers, source pumps, and other equipment.

4. High Stocking Density

In an intensive cultivation system, it is necessary to adjust the stocking density so that production results can be maximized with minimal costs.

Stocking density determines the level of technology required in the cultivation system.

5. Rely on Artificial Feed

Considering the high stocking density of shrimp fry in intensive pond types, the need for feed is also high. Therefore, since the fry is stocked, the need for feed is immediately met with artificial feed.

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

Purpose of Adjusting Vannamei Shrimp Stocking Density

The stocking density of vannamei shrimp fry must be adjusted to the capacity of the existing pond. This is because the stocking density affects the pond’s productivity and the costs incurred for cultivation.

1. Maintain Good Water Quality

Water quality in vannamei shrimp culture is influenced by feed residues and faeces. The greater the density of vannamei shrimp during cultivation, the more feed residues and manure are produced.

If there is too much manure and leftover feed is in the water, water quality conditions can be disturbed and even toxic.

2. Maintain the Growth of Vannamei Shrimp

The stocking density of vannamei shrimp that is not adjusted to the capacity of the pond can cause the cultured shrimp not to grow well. This is because shrimp will fight for space and nutrients from food which can cause shrimp growth to be slow if the stocking density is too high. Meanwhile, if the stocking density is too low, the space utilisation will be less than optimal.

3. Avoid Disease Attacks

Adjusting the stocking density of white shrimp can also prevent shrimp from disease during cultivation. If the stocking density is too high, the risk of death of vannamei shrimp during disease is also quite high, and vice versa.

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

Consult your Shrimp Farm at DELOS

Types of ponds with stocking density adjustments significantly affect harvest productivity in aquaculture. Therefore, it is vital to determine early on the number of fries to be stocked before cultivation begins.

If you need information related to good and appropriate shrimp pond management, DELOS has a consulting service via contact@delosaqua.com or through the form on our website www.delosaqua.com.

Through this consulting service, you can get answers to your shrimp pond problems. In addition, we can also help open up shrimp farming business opportunities with social, environmental, infrastructure, and regulatory approaches around the pond location. Contact DELOS now!

18May

AquacultureFun Read

4 Types of Vannamei Shrimp Harvest Time

The vannamei shrimp harvest time is done when the shrimp are more than 100 days old with an average weight of 20 grams per head. However, shrimp must be harvested early in special conditions such as mass mortality.

Harvesting is the process of taking shrimp from ponds that are more than 100 days old and weigh up to 20 grams per head. This activity is the most anticipated activity by the farmers as the final part of cultivation.

Generally, vannamei shrimp harvest time is done when the shrimp have reached a certain age. However, under special conditions, other types of harvest must be done. For example, when the capacity of the pond is insufficient or when there is a mass death of shrimp.

Curious about the types of vannamei shrimp harvested? Check this article to the end to find the answer.

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

How Long Does Vannamei Shrimp Harvest?

In one cultivation cycle, vannamei shrimp can be harvested at more than 100 days old or approximately three months old. However, if the pond’s capacity is close to the maximum limit, a partial harvest is usually carried out first to avoid increasing shrimp mortality due to lack of oxygen.

Partial harvest of vannamei shrimp is usually done when the DOC (day of culture) reaches 60-70 days. This is one of the vannamei shrimp cultivation strategies so that shrimp growth remains normal and stable.

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

Types of Vannamei Shrimp Harvest

1. Normal Harvest

The normal harvest of vannamei shrimp time is usually done when the DOC (day of culture) of shrimp has reached approximately 100 days. In addition, other criteria, namely ABW (average body weight) have reached more than 14 grams.

2. Partial Harvest

Partial harvest in vannamei shrimp culture is usually done to reduce the pond’s biomass or capacity. Because if the capacity of the pond has passed the maximum limit, the growth of shrimp becomes less than optimal.

3. Abnormal Harvest

The next type of shrimp harvest is abnormal harvest. This harvest occurs when the shrimp in the pond experience several symptoms, including a mortality rate of more than 100 heads per day for three consecutive days, slow growth of shrimp, and a decrease in feed daily.

4. Emergency Harvest

The last one is emergency harvest which carried out due to an emergency condition. For example, when shrimp are infected with a deadly virus that causes mass deaths of up to 1000 individuals per day, embankments slide, electricity goes out, and waterwheels die.

Also Read: Latest Vannamei Shrimp Prices in Indonesia

Maximize Your Vannamei Shrimp Harvest With DELOS

The vannamei shrimp harvest time must always be considered during cultivation. Some things may happen and require the shrimp to be harvested first before reaching the age of more than 100 days.

To avoid doubts when cultivating shrimp, you can entrust the management of your shrimp pond to DELOS. With a core team consisting of the top 99 best people in Indonesia in shrimp farming, DELOS can help you through our end-to-end Farm Management.

What’s more, DELOS Farm Management is integrated with the AquaHero application. It can make it easier for farmers to monitor their shrimp ponds, including if unexpected events occur and require faster harvesting.

To become part of the DELOS ecosystem, you can contact contact@delosaqua.com or ask questions via the contact column on our website www.delosaqua.com. Trust your shrimp farm management to DELOS!

16May

AquacultureFun Read

Get to Know the Vannamei Shrimp as a Farmers’ Favorite

You must be familiar with vannamei shrimp, right? This shrimp from the Penaeidae family is indeed a prima donna among farmers. The reason is that when compared to other types of shrimp, vannamei has more advantages.

Shrimp with the Latin name Litopenaeus vannamei is also a type of shrimp that contributes greatly to the world of exports compared to other kinds of shrimp. No wonder more people now want to cultivate this shrimp.

Well, for those of you who are interested in knowing more about this vannamei shrimp, read this article till the end to find out the information!

Also Read: The Importance of Sterilization in Shrimp Farms

Morphology of Vannamei Shrimp

morfologi udang vaname — Source: DELOS documentation

Litopenaeus vannamei has a transparent white body, making it called as white shrimp. However, its body can also gives a slightly blue color which comes from the blue chromatophores in vannamei’s body.

As an arthropod or animal that does not have a backbone, the morphology of the vannamei shrimp is divided into two parts. They are the fused head and chest (Cephalothorax) and the abdomen.

Vannamei shrimp head consists of antennae as chemoreceptors, antennae for detecting predators, mandibles, two pairs of maxillae for crushing food, maxillipeds for filtering and delivering food to the mouth, a pair of facet eyes (compound eyes), rostrum, and peripods or walking legs.

While the abdomen consists of six segments. Segments 1-3 called as tergum and segments 4-6 called as pleuron. On the abdomen of this vannamei shrimp, there are five pairs of swimming legs (pleopods) and a fan tail formed from uropods and telsons.

Also Read: Biosecurity in Shrimp Farming

Vannamei Shrimp Life Cycle

Before becoming a shrimp you often find at supermarkets, vannamei has several stages of its life cycle that must be passed. Starting from eggs, nauplius, protozoea, mysis, post-larvae, juveniles, sub-adult, to adult shrimp.

1. Egg

Female shrimp will mate with male shrimp and released up to hundred thousands eggs into the water.

2. Nauplius

The fertilized egg will then develop to the nauplius stage with a size of 0.32-0.58 mm. At this stage, vannamei shrimp do not yet have a perfect digestive system. Meanwhile, they get their food from the yolk sac.

3. Protozoea

Nauplius, which doesn’t have the yolk sacs and undergoes a molt, then turns into protozoea. At this stage, the vannamei begins to need food from the surrounding environment, such as phytoplankton.

4. Mysis

Vannamei will then undergo three moltings and turn into a mysis. The most visible development of this stage is the emergence of swimming legs (pleopods) and the addition of body segments. At the mysis stage, the size of the vannamei shrimp reaches 3.50-4.80 mm.

5. Post-larva

When it reaches the post-larva stage, the vannamei shrimp looks like an adult shrimp. At this stage, the shrimp have started to actively move straight ahead. Meanwhile, for farmers to find out the age of the post larvae, add a number behind it, for example, PL 1 for one-day-old post-larva.

6. Juvenile

The shrimp are referred to as juvenile when it reaches PL 10 or post-larva aged ten days.

7. Sub-Adult

Yuwana which is 80-90 days old, can already be called a young shrimp or sub-adult shrimp. Usually, these young shrimp have reached a weight of 21-23 grams per head.

8. Adult Shrimp

To reach the adult shrimp that are ready to be harvested, young shrimp need 25-30 days with an average weight of 28-30 grams per head.

Advantages of Vannamei Shrimp Cultivation

keunggulan udang vaname — Source: DELOS documentation

Since its appearance in Indonesia, vannamei shrimp has immediately become one of the potential export commodities. This is because shrimp that are originally from the sub-tropical region have excellent environmental resistance and can adapt quickly.

In addition, several other advantages include high economic value, faster growth, more resistance to disease and an unstable environment, and high viability make this shrimp become the farmers’ choice.

Also Read: Delos Technology in Shrimp Farms Capable of Harversting Over 40 Tons/Ha

Start Your Aquaculture Business with DELOS!

The advantages of vannamei shrimp are no longer in doubt. Plus, the market demand that continues to increase makes many people start to be tempted to begin cultivating this type of shrimp.

However, starting vannamei shrimp cultivation cannot be done haphazardly. There are many things to consider to get maximum yields. If you are confused about where to start vannamei shrimp cultivation, DELOS is here for you!

Through Farm Management which is integrated with the AquaHero application, DELOS can help you to explore new opportunities in the field of aquaculture through an approach to social, environmental, infrastructure, and regulatory issues at the specified location.

In addition, we also have a Supply Chain Integration program to help our partners get the best products and prices for their shrimp farming.

No need to hesitate or worry, you can directly contact DELOS 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!

02May

AquacultureTechnology

5 Types of Shrimp Pond Aerators and Their Functions

A shrimp pond aerator is one of the main components in aquaculture, especially in intensive and super-intensive ponds. An aerator is a tool that serves to dissolve free oxygen into pond water.

The existence of a water wheel and other supporting equipment for shrimp growth in aquaculture is intended so that ponds can become a comfortable ecosystem for shrimp growth. So that shrimp can grow optimally.

Shrimp pond aerator functions to create aeration. Aeration is a process of increasing the oxygen content in the aquatic environment to ensure that the organisms that live in it get an adequate supply of oxygen and live healthily.

In this article, let’s discover the types of waterwheels commonly used in shrimp ponds and their functions!

Also Read: 4 Types of Vannamei Shrimp Harvest Time

The Function of the Shrimp Pond Aerator

Increasing the supply of oxygen in the water stabilizes the biological processes of shrimp.
Ensuring the shrimp get an adequate supply of dissolved oxygen
Improve the quality of the water where shrimp live.
Helps distribute nutrients and feed evenly into the pond.
Make it easier for pond bottom manure to be directed to the disposal center so that the pond bottom is easier to clean.

Types of Pond Aerators

1. Pond Waterwheel with Paddle Wheel

paddle wheel shrimp pond aerator — Source: Roy et al. 2015

In terms of performance, the paddle-wheel water wheel is the most effective aerator on the pond surface. The parts consist of a frame, motor, float, clutch, deceleration engine, bearings, and paddle wheel.

This waterwheel works by splashing water into the air and capturing oxygen to increase the DO content. The more bubbles produced, the more oxygen is captured.

2. Spiral Aerators

spiral aerator for shrimp pond — Source: Roy et al. 2017

A spiral aerator is an improvised form of a paddle-wheel water wheel, the difference being the shape of the wheels. As the name suggests, this aerator wheel is spiral. In addition, there are several other differences, such as reducing the gearbox or reducer, handle, and connecting shaft.

Meanwhile, in terms of how it works, spiral aerators also sprinkle water into the air to capture oxygen. However, it gets many more bubbles than a regular paddle wheel waterwheel.

3. Pump Sprayer Aerator

A pump aerator is a type of aerator that works by drawing water into a vertical tube and then sprinkling it into the air to capture oxygen. The water will be deflected radially and then fall back to the surface in an umbrella-like pattern.

This type of aerator is widely chosen because it does not require much special care. However, its use can only reach a small area, while it needs to be optimal in large sizes.

In-use pump aerators are usually used in small ponds or can also be used in large ponds but in combination with other types of aerators.

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

4. Vertical Pump Aerator

A vertical pump aerator has the same working principle as a pump aerator, which is to draw water into the pump tube and then sprinkle it into the air.

Vertical pump aerators are more suitable for small ponds up to 0.25 Ha because the splash produced by this aerator is not as big as a waterwheel. Meanwhile, the capacity ranges from 1 kW to more than 50 kW.

5. Jet Aerators

shrimp pond aerator — Source: Roy et al. 2017

The jet aerator consists of a shrimp pond water wheel composed of a frame, air suction pipe, propeller, and driving motor. Unlike other types of aerators, the propellers of this aerator are in the water.

The way it works starts with a propeller rotating in the water and sucking in air from outside the pool through a pipe. After the air is sucked in and enters the water, bubbles will appear, indicating that the oxygen supply is starting to enter.

Also Read: What is MBW Term In Shrimp Farming and How To Calculate It?

Fulfill Your Farm Equipment Needs with AquaLink!

Aerators or waterwheels are important in shrimp farming, especially for intensive and super-intensive ponds. This aerator supplies oxygen into the water so the shrimp can grow optimally.

To meet the needs of shrimp pond aerators and other pond equipment, you can get them through DELOS AquaLink!

Delos AquaLink is an integrated supply chain that connects our partners to get the products they need for their ponds with the best quality and price. Through AquaLink, you can get your needs for pond equipment, feed, medicine, logistics, and harvesting services.

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

02May

Aquaculture

The Importance of Alkalinity in Shrimp Ponds, Check Your Alkalinity Now!

Alkalinity in shrimp ponds is the capacity of pond water to neutralize acid, which is measured based on its constituent components in the form of bicarbonate ions (HCO3-), carbonate (CO32-), and hydroxide (OH-). Alkalinity is an important parameter of water quality and influences the success of cultivation.

Alkalinity is also a buffer or water pH buffer. Stable water pH is crucial for shrimp growth because any fluctuation outside the optimum limit can cause stress, decreased growth rate, susceptibility to disease, and even death.

Water in an aquaculture system can come from direct watershed runoff, rivers, lakes, estuaries, seas, or wells with varying alkalinity values. If the alkalinity is low, liming is usually done to increase it.

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

What Is Alkalinity in Shrimp Pond?

Alkalinity is the ability of water to buffer pH by neutralizing hydrogen cations using water anion components which include bicarbonate ions (HCO3-), carbonate (CO32-), and hydroxide (OH-). Therefore, alkalinity is an important water quality parameter in shrimp ponds.

Maintaining optimal alkalinity in shrimp ponds is critical to stabilizing pH levels, which can affect shrimp health and growth. Optimal alkalinity in shrimp ponds ranges from 130-180 ppm.

Alkalinity below the optimum range in shrimp ponds can cause pH fluctuations. This can cause stress to the shrimp and increase the risk of disease outbreaks. Agricultural lime is usually added gradually to overcome this until it reaches the optimum alkalinity range.

Factors Affecting Changes in Alkalinity

The alkalinity may remain constant, increase, or decrease during the shrimp culture period. Occasionally, the reduction may be so drastic as to require additional liming to keep the alkalinity within the optimal range.

1. Adding Water to the Pond

Adding water to pond ponds can often cause the alkalinity to change. For example, the alkalinity will decrease when a pond gets additional healthy water. To overcome this, farmers need to add limestone, which will dissolve and increase the alkalinity of the water.

2. High Rainfall

In addition, high rainfall can also affect changes in pond alkalinity. Significantly when water evaporation exceeds precipitation, which causes alkalinity to increase. On the other hand, if the precipitation is higher, the alkalinity will decrease because rainwater usually does not contain measurable alkalinity.

3. Denitrification Process

Denitrification, or the process of reducing nitrate to nitrogen gas by bacteria that occurs in ponds, can also increase the alkalinity of the water. This is because denitrification releases one hydroxide ion for every nitrate ion converted into nitrogen gas. While the nitrification process releases two nitrogen ions for every ammonium ion converted to nitrate.

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

Tips to Increase Alkalinity Value in Shrimp Ponds

1. Increase Alkalinity in Shrimp Ponds with Addition of Dolomite (Calcium Magnesium Carbonate)

Dolomite is widely used to increase alkalinity values. This is because dolomite is also rich in calcium, magnesium and carbonate. With the addition of dolomite lime, the alkalinity of the water can be appropriately maintained.

2. Soda Ash (Sodium Carbonate)

Soda sodium carbonate can also be used to increase the alkalinity of water. However, its use is better done by adding it little by little in one day to hold pH variations properly.

3. Increase Alkalinity in Shrimp Ponds with Baking Soda (Sodium Bicarbonate)

Lastly, baking soda can also be used to increase the alkalinity value of water. Applying sodium bicarbonate is also the same: mixing it gradually into the pond water.

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

Record and Monitor Alkalinity in Your Shrimp Pond with AquaHero!

Alkalinity in vannamei shrimp farming is essential for developing and maintaining shrimp health. Therefore, farmers must constantly monitor the alkalinity value and keep it in the optimal range.

To make it easier for you to monitor the alkalinity of vannamei shrimp ponds and other water quality parameters, you can use AquaHero!

AquaHero is a shrimp pond management application that offers the convenience of monitoring pond conditions based on uploaded and personalized data.

AquaHero also makes it easy for you to monitor the condition of your shrimp pond anytime and anywhere, every day, in real-time.

To use AquaHero, you can contact the DELOS Team via contact@delosaqua.com or submit via our website’s contact column at www.delosaqua.com. Monitor your pond water quality in real time with AquaHero!

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!

06Apr

AquacultureTips

7 Terms in Vannamei Shrimp Cultivation that You Must Know

As far as we might be concerned, making an extraordinary advanced experience is a blend between group, energy and ability. That is the reason we center around individuals.