Aquaculture Archives

Category: Aquaculture

13Mar

How to Increase the Appetite of Vannamei Shrimp

Increasing the appetite for vannamei shrimp poses a challenge for farmers. This is because shrimp that lack appetite can have an impact on their health and growth, directly affecting pond productivity.

Feeding vannamei shrimp is a key factor in supporting their growth and development. Feeding should be done efficiently to avoid overfeeding.

Decreased appetite in vannamei shrimp is a common obstacle for farmers, especially when shrimp are moulting. So, what factors influence this and how can they be overcome? Find out in this article!

Also Read: How to Overcome and Prevent Floods in Shrimp Ponds

Signs of Vannamei Shrimp Not Eating

To determine whether shrimp are eating well or not eating at all, you can check by feeding them. If the shrimp food is left uneaten or barely touched, it’s a sign that your shrimp are not eating. Here are the complete signs:

1. Decreased Activity

The first sign of vannamei shrimp not eating is decreased activity in the pond. Shrimp that are not eaten tend to be less active and sluggish. They may move more slowly or lack enthusiasm in searching for food.

2. Weight Loss

If shrimp aren’t eating enough, they can experience significant weight loss. You may notice a decrease in body size or loss of body mass from checking the average body weight (ABW) of shrimp that aren’t eating well.

3. Ignoring Food

Shrimp that lack appetite may not be interested in the food provided. They may ignore the food they usually consume eagerly. When shrimp aren’t eating, they tend to ignore the vannamei shrimp feed provided, resulting in more leftover feed on the water’s surface.

4. Empty Shrimp Intestines

Another sign of shrimp not eating is that their intestines appear empty. Empty intestines occur because no food enters the shrimp’s body to be digested.

Causes of Decreased Shrimp Appetite

Decreased shrimp appetite can be caused by several factors, including:

1. Poor Pond Water Quality

Poor pond water quality can cause decreased shrimp appetite. This is because shrimp will feel uncomfortable in a poor environment, leading them to refuse food.

Additionally, poor pond water quality can trigger stress in shrimp and slow down their metabolism, making them more susceptible to disease. Therefore, it’s important for farmers to regularly change the water and ensure that water quality parameters are always optimal.

2. Shrimp Stress

Stressed shrimp usually lose their appetite. The main stress triggers come from sudden and drastic changes in environmental conditions. To ensure this, farmers can observe the signs of shrimp stress.

To prevent stress in shrimp that can lead to decreased appetite, farmers can prevent it by routinely monitoring water quality parameters and creating a safe and stable environment.

3. Extreme Weather

Extreme weather changes can also affect shrimp appetite. Drastic changes in weather within a short period can alter pond temperature, which in turn affects shrimp body metabolism. Therefore, it’s essential to ensure that pond temperature remains stable during cultivation.

4. Shrimp Infected with Disease

When shrimp lose their appetite, farmers should be alert. Early symptoms of disease infection caused by bacteria or viruses can be seen in shrimp behaviour, such as refusing to eat. Examples of bacterial diseases that can affect shrimp appetite include Early Mortality Syndrome (EMS) and White Feces Disease (WFD).

On the other hand, viral diseases like White Spot Syndrome Virus (WSSV), Taura Syndrome Virus (TSV), Infectious Myonecrosis Virus (IMNV), and Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) can also affect shrimp appetite.

To prevent various diseases, it’s important to maintain water quality and pond environment regularly and ensure pond cleanliness.

5. Poor Feed Quality

Vannamei shrimp require nutrients such as protein, carbohydrates, fats, fiber, and ash to grow optimally and reach maximum weight. Lack of one or more of these nutrients can disrupt shrimp body metabolism, leading to decreased shrimp appetite.

Moreover, adjusting the type of feed given according to the shrimp’s age is also important. For example, shrimp under 16 days old are given powder feed, while shrimp aged 16-45 days are given granule feed, and shrimp over 45 days old are given pellet feed.

Also Read: The Use of Dolomite Lime in Shrimp Farming: Benefits and Implementation

Ways to Increase Shrimp Appetite

1. Feed According to Needs

The first way to increase vannamei shrimp appetite is to feed them according to their needs. To grow optimally, shrimp need balanced nutrition, including protein, fat, fibre, and ash in optimal amounts. Additionally, ensure that the feed provided is suitable for the shrimp’s age and moulting phase.

2. Conduct Regular Health Checks on Shrimp

Conduct periodic physical examinations to determine the health condition of the shrimp. Signs of health can be seen in their physical appearance, such as a full stomach, spread tail, active movement, normal body colour, and bright eyes.

If shrimp show abnormal behavior such as swimming on the surface or staying at the bottom of the pond for a long time, this may indicate that the shrimp are unhealthy.

3. Ensure Good Water Quality

The last way to increase vannamei shrimp’s appetite is to ensure their living environment is always in good condition. This includes maintaining water quality parameters and conditions around the pond.

Additionally, ensure that you regularly change the water to reduce shrimp stress levels, thus maintaining normal shrimp appetite.

Also Read: 5 Important Aspects in Vannamei Shrimp Farming that Must Be Known

Vannamei Shrimp Farming is More Productive with DELOS!

Increasing the appetite for vannamei shrimp is not too difficult. You just need to ensure that the pond environment conditions are always optimal, provide feed according to the needs, and conduct periodic health checks on shrimp.

If you want optimal vannamei shrimp harvest results, you can entrust your vannamei shrimp farming to DELOS! DELOS is the best aqua-tech company based on science, technology, and operational management that can help you explore new opportunities and increase your pond productivity.

DELOS Farm Management is also integrated with the AquaHero application, making it easier for Farm Owners and Technicians to monitor pond conditions daily.

Contact the DELOS Team via contact@delosaqua.com or submit through the contact column on our website at www.delosaqua.com for further discussion. Vannamei shrimp farming is more productive with DELOS!

06Mar

AquacultureTips

5 Important Aspects in Vannamei Shrimp Farming that Must Be Known

Before engaging in shrimp farming, farmers must be aware of the crucial aspects of Vannamei shrimp cultivation. This is essential to ensure that the farming activities proceed smoothly and yield satisfactory harvests. Considering that shrimp is one of the vital commodities in the fisheries industry, it becomes imperative to understand these aspects thoroughly.

The Ministry of Maritime Affairs and Fisheries has set ambitious targets regarding Vannamei shrimp production, aiming to reach 2 million tons by 2024. Achieving this goal requires collaboration from various parties, including the government and shrimp farmers. The following are the crucial points that should be considered in Vannamei shrimp farming:

Also Read: The Use of Dolomite Lime in Shrimp Farming: Benefits and Implementation

Important Aspects in Vannamei Shrimp Farming

1. Availability of Water Source

One of the crucial aspects in Vannamei shrimp farming is the presence of a good water source. Vannamei shrimp require good water quality for optimal growth. Ensure that the pond water is free from contaminants such as industrial waste, agricultural waste, pathogens, and carriers of pests that can harm shrimp’s health.

Additionally, it’s important for farmers to routinely monitor water quality parameters daily. Optimal water quality conditions can promote optimal shrimp growth.

2. Type of Pond

When planning to construct shrimp ponds, it’s important to consider the type of pond that suits the budget and project objectives. There are four different types of ponds in terms of technology: extensive ponds (traditional), semi-intensive, intensive, and super-intensive.

Extensive ponds are known for low stocking densities, hence they tend to have lower productivity. However, they are easier to maintain compared to other types of ponds, resulting in lower risks of shrimp diseases. Typically, stocking densities in extensive ponds are <50 shrimp/m2.

On the other hand, semi-intensive ponds have higher stocking densities than extensive ponds, but are not as densely stocked, typically around <100 shrimp/m2.

Intensive ponds generally use direct earthen ponds but can be equipped with liners to reduce soil erosion. Intensive pond depths are also deeper than 1 meter to allow shrimp to move freely. Stocking densities in intensive ponds are >100 shrimp/m2.

Super-intensive ponds have even higher stocking densities, >200 shrimp/m2. However, this type of pond requires considerable investment due to the higher oxygen demand, necessitating more oxygen supply equipment. The depth of intensive ponds should also be increased to around 2.6 meters to prevent overcrowding of shrimp.

Also Read: Challenges in Vannamei Shrimp Farming

3. Selection of Postlarvae (PL)

The selection of postlarvae (PL) is crucial in Vannamei shrimp farming and should be carefully considered. The PL to be stocked should be healthy and free from diseases. Therefore, the PL must undergo a series of tests to ensure their health.

Before stocking, the PL should be in a stress-free condition after the shipping process. During transportation, the PL will be anesthetized and needs to recover before stocking. The recovery process can be done by gently swirling the PL bags. PL that are in good condition will swim against the current, while stressed PL will follow the current. Stressed PL should not be stocked immediately to reduce mortality rates.

The transportation of PL from the hatchery to the ponds poses its own challenges. PL must have sufficient oxygen supply during transportation to remain alive and reduce stress due to shipping.

4. Feed Selection

Choosing the right feed with appropriate nutrition is important in Vannamei shrimp farming and should be considered by all farmers. Various types of feeds are available for Vannamei shrimp farming, ranging from natural feeds to artificial feeds.

Ensure that the feed you choose has a balanced nutrient content suitable for the shrimp’s growth at each stage. Additionally, the amount and frequency of feeding should be well-regulated to avoid overfeeding or underfeeding.

5. Farm Management During Farming

Effective pond management is crucial to achieve optimal harvest results. This includes routine monitoring of pond environmental conditions, disease and predator control, feed management, and maintenance of pond infrastructure. Additionally, a risk management plan should be developed to anticipate potential issues that may arise during shrimp farming.

Also Read: Wild-caught Shrimp or Farmed Shrimp? Here’s the Consideration!

Start Your Vannamei Shrimp Journey with DELOS!

Understanding the critical aspects of shrimp farming is crucial for farmers before engaging in shrimp farming. This is done to ensure that shrimp farming activities proceed smoothly and achieve optimal harvests.

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

We use a problem-solving approach involving social, environmental, infrastructure, and regulatory considerations at the designated pond locations. Furthermore, our Farm Management is integrated with the AquaHero application, making it easier for you to monitor pond conditions daily.

DELOS also offers a Supply Chain Integration program to assist our partners in obtaining the best products and prices for their shrimp farming activities.

So, contact DELOS at contact@delosaqua.com or submit your inquiries through the contact form on our website www.delosaqua.com. Let’s start Vannamei shrimp farming with DELOS!

28Feb

AquacultureTips

How to Overcome and Prevent Floods in Shrimp Ponds

The rainy season can bring new problems for shrimp farmers, ranging from preventing floods, and landslides in embankments, to flood problems. Therefore, shrimp farmers must know how to prevent floods in shrimp ponds so that their cultivation does not suffer losses.

Floods are a serious threat to shrimp ponds, causing significant losses to the environment and farmers. In efforts to address and prevent floods in ponds, an effective approach is needed. Therefore, you can read about it in the following article!

Floods in Shrimp Ponds, What are the Impacts?

For shrimp farmers, floods are a serious challenge that has significant negative impacts on their shrimp cultivation. Floods are not trivial problems because they can cause shrimp to escape from ponds in disarray, resulting in significant losses. The impacts of floods on shrimp ponds are not only limited to these losses but also include the following aspects:

Disrupting shrimp pond infrastructure, including irrigation networks and embankments, can affect the overall construction of the pond.
Lowering the water quality in the pond, can cause stress to shrimp and disrupt their growth.
Increasing operational costs of the pond due to infrastructure repairs and more intensive water management.
Reducing the quality of shrimp produced from the pond, resulting in decreased selling prices and farmer income.
Increasing the population of pathogens and pests in the pond due to the presence of floodwater carrying harmful microorganisms for shrimp.

Also Read: DELOS Secures Top Spot in LinkedIn Top Startups Indonesia 2023

Strategies to Address Floods in Shrimp Ponds

1. Installation of Nets Around the Pond

One effective method is to install nets around the pond to prevent shrimp from being carried away by flood currents. Nets with a width of 1-1.5 meters can be installed and securely tied to withstand the pressure of strong flood currents, keeping the shrimp inside the pond.

2. Water Drainage

A water drainage system, similar to an overflow system, can be implemented by creating drainage channels on the embankment to channel excess water from the pond. This method is effective especially if floods occur only in certain parts of the pond.

3. Liming

Liming is an important step to maintain pH balance in the water, avoiding extreme decreases due to rainwater or the entry of low pH water into the pond. By maintaining the pH of the water, shrimp health can be preserved.

4. Planned Harvesting

Well-planned harvesting can help reduce losses due to floods. This step is the last option when floods cannot be predicted and continue to increase significantly in scale. With timely harvesting, losses can be minimized, effectively reducing the impact of floods on shrimp ponds.

Also Read: DELOS Attended The Aquaculture Roundtable Series (TARS) 2023 in Bali

Post-Flood Pond Management

After a flood occurs, appropriate management steps need to be taken immediately to restore the condition of the shrimp pond. Here are some steps that can be taken:

1. Conducting Evaluation

Firstly, a comprehensive evaluation needs to be carried out to determine if the pond’s position is still suitable for shrimp cultivation. If not, farmers need to consider relocating the pond to a safer location, away from flood risks.

2. Regular Outlet Checking

Outlets, as channels for water to exit the pond, need to be regularly checked to ensure there are no blockages that can hinder water flow out of the pond. Outlet cleaning should be done at least once a month to prevent debris buildup.

3. Raising Pond Chambers

Raising the height of pond chambers is a simple yet effective strategy to prevent floodwater from entering the pond. Higher pond chambers can prevent shrimp from water pressure and prevent them from escaping the pond.

4. Using Overflow Systems

Overflow systems can be installed to assist in draining excess water from the pond when the water has reached its maximum limit. However, it should be noted that this system is only effective if water floods the pond, not its surrounding areas.

5. Building an Effective Drainage System

Constructing an effective drainage system is crucial to control excessive water flow and prevent waterlogging in the pond and its surrounding areas.

6. Improving Water Quality

To restore the water quality affected by floods, liming and water replacement need to be carried out. This step aims to improve water conditions to support shrimp growth.

Also Read: Implementation of Traceability in Vannamei Shrimp Export Products

Strategies to Prevent Flood Formation in Shrimp Ponds

Floods are one of the natural disasters that can disrupt shrimp cultivation, but their negative impact can be reduced through several preventive measures. Here is a series of strategies that can be comprehensively applied:

1. Selection of Flood-Safe Cultivation Locations

Choose cultivation locations located in coastal areas with tidal fluctuations of 2-3 meters, having clay or sandy clay soil textures with sand content of less than 20%, located 50-150 meters from the shoreline, and equipped with a green belt as a buffer zone consisting of mangrove forests.

2. Utilization of Tidal Calendar

Use the tidal calendar to predict and adjust the cultivation cycle with the period of high tides, thus anticipating the potential risk of floods.

3. Installation of Water Pumps

Install water pumps to control the water level in the pond to prevent potential flooding.

4. Regular Cleaning of Inlet and Outlet Channels

Regularly sterilize and clean the inlet and outlet channels of the pond, at least once a month, and conduct periodic inspections to ensure smooth water flow.

Also Read: The Importance of Traceability in Shrimp Farming

5. Construction of an Efficient Drainage System

Build an efficient drainage system to control water flow and prevent waterlogging in the pond and its surroundings.

6. Construction of Pond Structures with Strong Embankments

Construct pond structures equipped with strong barriers to withstand water pressure and prevent leakage.

7. Implementation of Effective Overflow Systems

Implement effective overflow systems during pond construction to ensure smooth drainage of excess water and prevent floods in the pond.

8. Construction of Sub-Soil to Prevent Plastic Swelling

Create effective sub-soil to prevent plastic swelling during floods when constructing pond structures.

Also Read: Wild-caught Shrimp or Farmed Shrimp? Here’s the Consideration!

Shrimp Farming is More Productive with DELOS!

As a serious threat, knowledge to prevent floods in shrimp ponds is important for shrimp farmers. Floods bring about quite complex problems in the cultivation process and result in economic losses.

But you don’t need to worry because DELOS is here to help you manage your shrimp ponds. This includes preventing and addressing various problems that may arise during cultivation.

To connect with the DELOS Team, you can contact us via email at contact@delosaqua.com or visit www.delosaqua.com. Shrimp farming with vannamei shrimp is easier and more productive with DELOS!

15Feb

Aquaculture

Tips for Providing Minerals for Shrimp Ponds

Minerals for shrimp ponds play an important role in stabilising pH, stimulating plankton growth, and breaking down harmful compounds in the pond. There are two types of minerals in ponds: from the aquatic environment and those from feed.

The mineral content in ponds can fluctuate during cultivation, both in quality and quantity. This is influenced by shrimp assimilation, water exchange, and seepage.

In addition to benefiting shrimp, minerals also support the process of plankton photosynthesis in ponds. If plankton in the pond is stable, the environment will also be good.

So, what are the tips for providing minerals for shrimp ponds for optimal cultivation results? Find out more in the following article!

Also Read: 6 Authentic Japanese Shrimp Recipes

The Importance of Sufficient Minerals for Shrimp Ponds

The mineral requirements for vannamei shrimp range from 2-5% of the total shrimp feed. However, in ponds with higher stocking densities, the required mineral supply should also be higher.

If minerals for shrimp ponds are insufficient or unbalanced, the consequences can be fatal. This can range from disturbances in the pond ecosystem, and shrimp health problems, to decreased productivity and quality of harvests.

A lack of minerals in shrimp ponds can also result in microorganisms such as plankton not thriving properly. This can also lead to a decrease in water quality, which can cause shrimp to become stressed and more susceptible to pathogen infections.

Also Read: Danger of Shrimp Diseases Caused by Viruses

Tips for Providing Minerals for Shrimp Ponds

1. Choose the Needed Minerals

Select minerals for shrimp ponds according to the needs of the cultivated shrimp. Some common minerals important for shrimp growth include Calcium, Magnesium, Sodium, Potassium, Phosphorus, Chlorine, Sulfur, Iron, Copper, Manganese, Zinc, Cobalt, Molybdenum, Chromium, Selenium, Fluorine, Iodine, and Nickel.

2. Pay Attention to Calcium Levels

Calcium is a crucial micromineral for the formation of strong shrimp shells. Ensure an adequate amount of calcium in the pond water, either through direct supplementation or by adding it to the feed.

3. Provide the Right Dosage

Minerals for shrimp ponds should be in the correct composition and needed by the shrimp in the pond. Avoid giving too many minerals, especially if not needed, as this can cause overdoses and have negative impacts on shrimp health and overall water quality.

4. Consider Environmental Factors

Take into account environmental factors such as water quality parameters before providing minerals for shrimp ponds. Different water environment conditions or conditions not being optimal can affect mineral absorption by shrimp.

5. Continuously Monitor Mineral Balance

Changes in mineral balance can occur over time due to various factors, including shrimp growth, water usage, and decomposition of organic matter.

Monitoring mineral levels in ponds can be done by routinely testing the water. This includes chemical, physical, and biological testing.

Also Read: Understanding the Types of Plankton in Shrimp Ponds

More Productive Vannamei Shrimp Cultivation with DELOS!

Minerals for shrimp ponds should be within the optimal range to ensure shrimp grow optimally. Therefore, it is important for farmers to always monitor the mineral composition in their shrimp ponds.

Now you can easily carry out shrimp cultivation with DELOS. DELOS is the best aquatech company based on science, technology, and operational management that can help you manage and increase the productivity of your ponds.

DELOS shrimp pond management is also integrated with AquaHero, making it easier for you to monitor shrimp ponds every day, including daily water quality parameter monitoring.

Contact the DELOS Team via contact@delosaqua.com or submit through the contact column on our website at www.delosaqua.com to learn more about DELOS shrimp pond management. Vannamei shrimp cultivation is more productive with DELOS!

12Feb

Aquaculture

Challenges in Vannamei Shrimp Farming

Challenges in vannamei shrimp farming can be faced by anyone, whether they are seasoned farmers who have been in the field for a long time or just venturing into the vannamei shrimp farming business.

Three main challenges often encountered in vannamei shrimp farming are climate change, fluctuating pond water conditions, and disease outbreaks. Each of these challenges can affect productivity and the sustainability of farming. Furthermore, if not properly addressed, they can lead to economic losses for farmers. Let’s discuss them further in this article.

Also Read: 11 Types of Shrimp Diseases that Often Occur During Cultivation

Challenges in Vannamei Shrimp Farming

1. Climate Change

Climate change has become a serious threat to vannamei shrimp farming. Changes in seawater temperature and unstable weather conditions can disrupt the shrimp’s life cycle and increase the risk of long-term stress on the shrimp, which can impact pond productivity.

Moreover, climate change can also lead to extreme weather events such as tropical storms and floods, disturbing the pond water balance and damaging infrastructure. To address this, farmers need to adopt shrimp farming practices that are more resilient to climate change.

2. Fluctuating Pond Water Conditions

Fluctuating pond water conditions, including changes in water quality parameters, are the most common challenges faced by vannamei shrimp farmers. Poor water quality can cause stress to the shrimp and increase the risk of disease outbreaks.

To address the issue of fluctuating pond conditions, farmers can monitor water quality parameters regularly and take necessary actions when anomalies or changes occur in each water quality parameter.

Also Read:

3. Disease Outbreaks

The most serious challenge in vannamei shrimp farming is disease outbreaks. Disease outbreaks can lead to significant financial losses for farmers.

Some common diseases affecting vannamei shrimp farms include White Spot Syndrome Virus (WSSV), IHHNV, EMS, EHP, and Vibriosis. These diseases can spread rapidly and cause mass mortality if not promptly addressed.

To reduce the risk of disease outbreaks, farmers need to implement good vannamei shrimp farming management practices, such as daily water quality monitoring, routine health checks on shrimp, biosecurity measures, and high-quality feed.

Also Read: Nutritional Needs of Vannamei Shrimp for Optimal Growth

Vannamei Shrimp Farming is More Productive with DELOS!

Various challenges in vannamei shrimp farming often arise during the farming process, ranging from water issues to infrastructure problems and disease outbreaks. If not properly addressed, these challenges can result in economic losses for farmers.

However, you don’t have to worry because DELOS is here to help you manage your shrimp ponds, including preventing and addressing various issues that may arise during farming.

To connect with the DELOS team, you can contact us via email at contact@delosaqua.com or visit www.delosaqua.com. Vannamei shrimp farming is more productive with DELOS!

02Feb

AquacultureWater Quality

When is the Right Time to Change Shrimp Pond Water?

Changing pond water is one solution to address water quality issues during cultivation. Pond water should be changed when its quality declines or certain conditions necessitate such action.

Fundamentally, water quality plays a crucial role in the success of aquaculture. Therefore, shrimp farmers must consistently monitor the conditions and quality of their pond water to ensure optimal shrimp growth.

When is the right time to change shrimp pond water? Find the answers in the following article!

Also Read: Water Quality Parameters in Shrimp Farms

Objectives of Changing Pond Water During Cultivation

1. Regulating Water Temperature

Water replacement helps regulate the pond water temperature, especially during extreme weather conditions. This is crucial to maintaining the water temperature within the optimal range for shrimp growth and health.

2. Preventing Salinity Increase During Dry Season

Water replacement becomes a vital strategy to prevent excessive salinity, especially during the dry season. High salinity can harm shrimp’s health and reduce pond productivity.

3. Increasing Dissolved Oxygen (DO) Concentration

The water-changing process helps increase the concentration of dissolved oxygen in the pond. Adequate oxygen availability is crucial for shrimp metabolism and preventing hypoxic conditions.

4. Removing Excess Phytoplankton

Changing water helps control the phytoplankton population in the pond. Excessive phytoplankton can cause unstable water conditions and negatively impact shrimp health.

5. Reducing Nutrient Concentrations

The water-changing process helps reduce nutrient concentrations in the pond. Excessive nutrients can lead to algal growth and pose ecological issues in the pond.

6. Lowering Concentrations of Ammonia, Nitrate, or Nitrite

Water replacement plays a role in reducing concentrations of harmful substances such as ammonia, nitrate, or nitrite. High concentrations can adversely affect shrimp’s health and lead to various health problems.

7. Eliminating Metabolism By-Products

Water replacement assists in removing accumulated metabolic by-products of shrimp in the pond. This prevents the buildup of substances that can be harmful.

8. Replacing Lost Water due to Evaporation or Leaks

In addition to maintaining water quality, water replacement also serves to replace lost water due to natural evaporation or leaks. This helps maintain the stability of the pond water volume.

Also Read: Application of Proper Biosecurity for Shrimp Ponds

Indicators for the Right Time to Change Shrimp Pond Water

Before changing pond water, it is essential to recognize the signs indicating the right time for this action, including:

1. Significant Increase in pH > 0.5 or Above the Specified Limit

A significant change in pH levels suggests the need for water replacement. An increase of more than 0.5 from the normal limit indicates instability that can harm shrimp.

2. Change in Water Color

Changes in water color, whether becoming clear with clarity exceeding 80 cm or becoming turbid with clarity less than 30 cm, are indicators that pond water quality needs improvement through water replacement.

3. High Organic Matter in Pond Water

Accumulation of organic matter in pond water can affect water quality. If there is a significant increase, changing pond water can help reduce the burden of organic matter in the pond.

4. Decrease in Shrimp Feeding Appetite

A decrease in shrimp feeding appetite may indicate stress or health issues. Changing pond water can create a better environment for shrimp, enhancing their feeding appetite.

5. Occurrence of Plankton Blooms

Excessive plankton blooms can cause significant changes in water quality. Water replacement helps control plankton populations and prevents potential issues.

6. Increased Shrimp Mortality

If there is an unexplained increase in shrimp mortality, it may be a sign that pond water conditions need evaluation and potential water replacement.

7. Abundant Sediment at the Pond Bottom

Excessive sediment at the pond bottom can indicate that pond water needs replacement. Changing pond water helps reduce sediment levels and maintains pond bottom cleanliness.

8. High Vibrio Content in the Pond

Elevated levels of Vibrio bacteria in pond water may indicate potential shrimp health problems. Water replacement can help reduce the number of pathogenic bacteria in the pond.

Also Read: How to Properly and Completely Distribute Vannamei Shrimp Fry!

Record and Monitor Your Pond Water Quality with AquaHero!

Changing shrimp pond water should not be done arbitrarily. Therefore, shrimp farmers must pay attention to the timing and procedures for changing shrimp pond water to ensure the quality of their shrimp’s lives is not disrupted.

To determine when your pond water should be replaced, you can monitor your pond water quality using AquaHero!

AquaHero is an application developed by DELOS to make it easy for you to monitor your pond conditions daily. From water quality to shrimp growth, action recommendations, and even the break-even point estimation during cultivation.

Contact the DELOS Team at contact@delosaqua.com or submit through the contact form on our website at www.delosaqua.com to try out AquaHero’s features and make shrimp cultivation easier and traceable. Choose AquaHero to record and monitor your pond water quality!

27Jan

AquacultureTips

Water Quality Parameters in Shrimp Farms

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25Jan

AquacultureTips

Application of Proper Biosecurity for Shrimp Ponds

Biosecurity for shrimp ponds involves a series of measures to prevent the entry of diseases into the pond area. The scope of biosecurity typically includes both the cultivation ponds and the entire pond area.

As the saying goes, “prevention is better than cure,” biosecurity is one of the best ways to minimize the risk of losses due to diseases during shrimp cultivation. However, its implementation must adhere to the established standards.

Applying biosecurity in shrimp ponds is essential to reduce the risk of cultivation failure. This applies to all types of ponds, ranging from traditional to super-intensive scales.

So, how can we properly apply biosecurity and adhere to the standard guidelines? Let’s explore further in this article.

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

Proper Application of Biosecurity

In the application of biosecurity for shrimp ponds, several aspects need to be considered, including juveniles (benur), shrimp feed, water, probiotics, and others.

1. Using High-Quality Shrimp Fry (Benur)

The first step in implementing biosecurity is to select high-quality and certified shrimp fry (benur). Ensure that the juveniles you choose are free from diseases to prevent infections and growth issues in the future.

2. Monitoring Water Quality in the Ponds

Water quality in the ponds is a critical aspect that must be monitored throughout the cultivation process. Regularly test water quality parameters to ensure that the pond water remains in optimal conditions. Additionally, you can add probiotics to improve water quality and enhance the shrimp’s immune system, protecting them from diseases.

3. Paying Attention to Accessibility

The accessibility of the pond, including the entry and exit of vehicles, people, and animals, can act as vectors that carry diseases into the pond. To prevent pathogens from entering the pond, you can implement the following activities:

Limiting the number of people entering the pond.
Restricting access to the cultivation area.
Establishing reporting and authorization procedures for pond entry (all visitors must report their presence).
To prevent wild animals from entering the pond, you can install deterrents such as bamboo fences, Crab Protecting Line (CPL), and Bird Scaring Line (BSL).

Another biosecurity measure is to use disinfectants at every pond entrance for people and vehicles entering the area. This helps prevent potential pathogens from being carried in by individuals or vehicles.

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

4. Following Biosecurity Protocols during Juvenile Stocking

During the juvenile stocking process, biosecurity protocols should be strictly followed and monitored, starting from the arrival of the juveniles to their release into the pond. The truck transporting the juveniles should pass through a wheel bath facility before entering the pond area. Additionally, the bags containing the juveniles should be disinfected (by dipping them in a disinfectant). Equally important is the requirement for all personnel involved in the stocking process to disinfect themselves before entering the cultivation pond, especially during manual stocking.

5. Pond Water Management

Implementing biosecurity in shrimp ponds also involves managing the water that flows in and out of the pond. This is typically achieved by providing storage tanks and treatment ponds to filter and disinfect the water before it enters the main pond.

In the storage tanks, physical treatments such as sediment settling, coarse particle filtration, and total organic matter reduction from the water source are conducted. The treatment ponds involve chemical processes aimed at killing pathogens before the water enters the cultivation pond, and one common method is disinfecting the water in the treatment pond. This reduces or eliminates the possibility of pathogens in the water entering the cultivation pond.

Likewise, the water leaving the pond must also be treated before being discharged into the environment to preserve the surrounding ecosystem. Directly discharging water without filtration could lead to environmental pollution and disease outbreaks due to pathogen contamination.

Also Read: Vannamei Shrimp Probiotics and Its Benefits For Cultivation

The Role of Biosecurity in Controlling Diseases in Shrimp Larvae

The presence of disease infections in shrimp ponds is one of the factors leading to failures in cultivation, especially when the infection occurs during the larval stage, causing socio-economic losses.

Viruses and bacteria cause diseases affecting shrimp. Controlling the spread of diseases is crucial to support sustainable aquaculture, and one effective strategy is the implementation of biosecurity measures in shrimp ponds, particularly starting from the stocking phase.

Some biosecurity measures to control diseases in shrimp larvae include:

Quarantining newly introduced shrimp broodstock.
Laboratory testing of broodstock for diseases.
Proper management of solid and liquid waste.
Regulating personnel and vehicles entering the cultivation area.
Regularly changing water to ensure its quality.
Conducting routine health screenings.

Implementing biosecurity to control the spread of pathogens can have positive effects, minimising the occurrence of diseases caused by bacterial and viral infections during the larval-rearing stage.

Consistent adherence to biosecurity policies by all pond personnel greatly supports the success of shrimp disease control. To ensure the success of biosecurity measures, shrimp farmers must document the regulations in writing.

Also Read: How to Properly and Completely Distribute Vannamei Shrimp Fry!

Rely on DELOS for Shrimp Cultivation!

Proper and standardized application of biosecurity is crucial for shrimp cultivation. With biosecurity measures in place, the risk of disease outbreaks that can lead to production losses can be avoided.

If you’re interested in environmentally friendly vannamei shrimp cultivation, DELOS is the right partner for you. DELOS is a leading aquatech company based on science, technology, and operational management, capable of helping you enhance the productivity of your shrimp ponds while practising sustainable and environmentally friendly shrimp cultivation.

The DELOS team consists of competent and dedicated researchers and professionals who ensure the smooth operation of shrimp cultivation in your ponds. Additionally, DELOS’s farm management is integrated with the AquaHero application, which allows you to easily monitor your shrimp ponds daily using your gadgets.

Contact DELOS at contact@delosaqua.com or click the WhatsApp icon on our website www.delosaqua.com to connect with us directly. Enhance the productivity of your ponds with DELOS!

12Jan

AquacultureFun Read

7 Benefits of Consuming Vannamei Shrimp for Health

The benefits of consuming vannamei shrimp for body health are numerous. The reason is that apart from having a delicious taste, this popular seafood dish also has a reasonably high nutrient content.

If you are looking for delicious nutritional additions but are still rich in nutrients, vannamei shrimp is one to consider. So, in this article, we will further explore the main benefits of consuming vannamei shrimp.

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

Benefits of Consuming Vannamei Shrimp

1. Rich in Protein

Vananmei shrimp is an excellent source of protein. From 100 grams of shrimp, you can get up to 18 grams of protein. These proteins are essential for building and repairing tissues and producing enzymes, hormones, and other molecules in the body.

2. Low Calories and Fat

Vannamei shrimp have low levels of calories and fat when compared to other seafood. In 100 grams of vannamei shrimp, you get around 84 calories and less than 1 gram of fat. Of course, making processed vannamei shrimp on your food menu can be the right choice for those who are on a diet.

3. High in Omega-3 Fatty Acids

Shrimp is a good source of omega-3 fatty acids essential for heart health. Omega-3s may lower your risk of heart disease by reducing inflammation and improving cholesterol levels.

4. Rich in Nutrition

Shrimp contains essential nutrients, including vitamin B12, selenium, and phosphorus. Vitamin B12 is vital for producing red blood cells and the functioning of the nervous system, while selenium is a trace mineral that helps the immune system and thyroid gland function. At the same time, phosphorus is essential for the growth and maintenance of bones and teeth.

Also Read: 3 Family Favorite Sweet and Sour Shrimp Recipes

5. Easy to Cook

Vannamei shrimp are very easy to process and can be cooked in various ways, including baking, frying, sautéing, and boiling. Not only that, but prawns are also very versatile and can be added to multiple dishes, such as stir-fries, soups, salads, and pasta.

6. Prevent Aging

The next benefit of consuming shrimp is that it can prevent aging. Shrimp contains astaxanthin or antioxidants, which can suppress damage to skin cells caused by free radicals, which can accelerate skin aging.

In addition, shrimp contains trehalose, a type of sugar that protects the skin and hair from damage caused by UV rays.

7. Suitable for Diets

As previously mentioned, vannamei shrimp are low in calories and do not contain carbohydrates. This makes it very suitable to serve as a diet menu. In addition, its zinc content can increase leptin levels in the body, which can simultaneously help prevent overeating. Leptin is a hormone that regulates the body’s storage and use of fat and energy.

Shrimp are also rich in iodine, which can help regulate body weight through its interaction with the thyroid, a gland that plays an essential role in the body’s metabolism and regulates body weight.

Also Read: Easy Crispy Fried Shrimp Recipes to Cook at Home

Choose AquaLink for Your Shrimp Needs!

Overall, consuming shrimp can bring many health benefits. Its high protein content and low calories make this seafood a good choice for those who want to maintain a healthy diet.

In addition, the sustainable nature of vannamei shrimp farming also makes it a better and environmentally friendly choice compared to several other types of seafood, the majority of which are caught.

So, if you want to start living a healthy life and need a supply of the best quality shrimp at an affordable price, DELOS can help you.

Through the integrated DELOS AquaLink, we can help you get the best shrimp prices with unquestionable quality. We can also provide other pond needs, such as feed, medicine, logistics, and so on.

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

05Jan

Aquaculture

Nutritional Needs of Vannamei Shrimp for Optimal Growth

The nutritional needs of vannamei shrimp must always be considered by farmers to ensure optimal growth, especially in intensive and super-intensive cultivation systems.

The shrimp’s nutrition is typically acquired from the feed provided during cultivation. The nutritional content in this feed supports the immunity and sustenance of the shrimp. Here are some key nutrients needed by vannamei shrimp for their growth:

Also Read: Economic Strategies in Shrimp Farming During Price Downturns

Nutritional Requirements for Vannamei Shrimp

1. Protein

Protein stands as one of the major nutrients required by Vannamei Shrimp. Most of the feed provided to shrimp contains high protein content, reaching about 30 to 50 percent of the total nutrients. Artemia, a commonly used natural feed, is also rich in protein, making it a good choice to fulfill the shrimp’s protein requirements.

2. Lipids

Lipids serve as an energy source and aid in the absorption of vitamins and minerals. Commercial feeds in the form of special pellets for Vannamei Shrimp usually contain crucial lipids for shrimp growth. Providing pellets during the larval stage and before harvesting helps maintain adequate nutrition, including lipids.

3. Carbohydrates

While not the primary energy source, carbohydrates are still essential in providing substances for shrimp shell formation. The nutritional requirement for carbohydrates is not substantial, yet proper management in providing feeds with carbohydrate content is crucial to ensure sufficient energy storage for shrimp.

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

4. Vitamins

Vitamins A and C are essential for Vannamei Shrimp. Vitamin A plays a role in pigmentation, while vitamin C enhances the shrimp’s immune system. Commercial feeds are generally formulated with the right amount of vitamins tailored to the shrimp’s needs.

5. Minerals

Minerals are necessary for various bodily processes of shrimp, including tissue formation and metabolism. Although crucial, mineral administration must be handled carefully. Excessive mineral intake can negatively impact shrimp growth and health.

Also Read: Impact of Rainy Season on Shrimp Pond Sustainability

Vannamei Shrimp Cultivation is More Profitable with DELOS!

The nutritional needs of vannamei shrimp in feed are indeed crucial to support their growth and immunity. However, it’s also important to consider other factors such as water quality, feed management, and feeding frequency.

Effective monitoring and feed management can ensure even more optimal growth of your vannamei shrimp. For this reason, entrust your vannamei shrimp farming management to DELOS!

DELOS is an aquatech startup based on the best science, technology, and operational management practices, assisting you in managing shrimp ponds to achieve the best productivity results.

DELOS farm management is also integrated with the AquaHero app, making it easier for you to monitor your pond’s conditions anytime, anywhere.

Contact the DELOS Team via contact@delosaqua.com or submit your queries through the comment section on our website at www.delosaqua.com. Vannamei shrimp farming is more profitable with DELOS!