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Category: Fun Read

06Oct

Getting to Know the DOC Term in Shrimp Farming

You must be familiar with DOC or Day of Culture, right? The term DOC in shrimp farming refers to the days when white shrimp and other shrimp are cultivated. DOC is calculated from the time the seeds are sown into the pond until the harvest.

In vannamei shrimp culture, DOC is also used as a benchmark for the age of shrimp after the larval stage. For example, DOC 80 means that shrimp farming has been carried out for 80 days since the first day the fry were sown.

Are you still confused about what DOC or Day of Culture is in shrimp farming? Come on, read this article to the end to find the answer.

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

What is DOC on Shrimp Cultivation?

Istilah DOC dalam tambak udang — Source: DELOS Documentation

When you are new to the world of aquaculture, maybe you find tons of new terms on this industry. One of the is DOC shrimp or Day of Culture.

The term DOC in shrimp farming means the days during which the cultivation of vannamei shrimp in the pond takes place. This DOC begins to be calculated from when the fry stokes into the pond until the shrimp are harvested. Other than that, DOC is also used to calculate the age of shrimp in ponds which is also important for shrimp feed management.

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

Differences between PL (Post Larva) with DOC (Day of Culture) in Shrimp Cultivation

Most people still don’t know the difference between PL and DOC in shrimp farming. However, they are two different terms because both are often interpreted as referring to the shrimp’s age.

PL stands for Post Larva. This term indicates the shrimp fry’s age, generally in days. PL vannamei shrimp counts after the shrimp complete the mysis stage until it is ready to be stocked in the pond. For example, PL1 means the fry is only one day after completing the mysis stage.

After the PL (Post Larva) is stocked into the pond, the term to indicate the shrimp’s age is changed to DOC or Day of Culture. For example, DOC 30 means that the shrimp fry has been 30 days old since they were stocked into the pond. So, don’t be confused with the term both PL and DOC.

Also Read: Get to Know Vannamei Shrimp as Farmers’ Favourite

Shrimp Farming with the Best Results at DELOS

After reading the explanation of the term DOC in shrimp farming above, you already have a clear picture of the words in shrimp farming, right? Besides DOC, there are other terms in shrimp farming that you must understand when entering this industry.

In addition to understanding the term shrimp farming, choosing a partner to manage the pond and getting the need for aquaculture at the best price and quality is also essential to consider.

Well, if you are looking for a shrimp farming aqua-tech company that has the best farm management, DELOS is the answer. In managing shrimp ponds, we use an approach to social, environmental, infrastructure, and regulatory issues around the pond location.

DELOS‘ Farm Management is integrated with the AquaHero application to make it easier for farm managers to monitor pond conditions daily. The AquaHero application is equipped with water quality monitoring facilities, tracking the shape and growth of shrimp, accurate treatment recommendations from the science team, to monitoring pond finances.

Immediately contact DELOS at contact@delosaqua.com or submit your inquiries via the contact column on our website www.delosaqua.com to get to know more about our Farm Management. Start vannamei shrimp farming with DELOS!

20Sep

AquacultureFun Read

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

Vannamei is a type of shrimp that has the best environmental resistance compared to other types of shrimp. This is supported by the presence of organ systems and morphology in vannamei shrimp.

Like humans, vannamei also has a digestive system, respiratory system, circulatory system, nervous system, and reproductive system. All of these organ systems must work properly for the vannamei shrimp to survive.

Curious about the organ system and morphology of vannamei shrimp? Let’s find out the answer to this article.

Also Read: 10 Types of Shrimp for Aquaculture and Aquascape

Morphology of Vannamei Shrimp

morfologi udang vaname — Source: freepik.com/topntop26

Overall, the morphology of vannamei shrimp is divided into two parts, namely the head and body parts. The head consists of eight thoracic segments and five fused head segments. Therefore, the head of this shrimp is also known as the cephalothorax.

The head of the vannamei shrimp is protected by a shell that tapers forward and is called the carapace. In addition, there is also a pair of compound eyes, a mouth with a jaw (mandible), a pair of antennae, a pair of head fins (scophocerit), a pair of auxiliary jaws (maxilliped), and five pairs of walking legs (pereopod) on the head.

The morphology of vannamei shrimp body parts consists of six segments, they are three tergum segments and three pleuron segments. In this part of the body, five pairs of swimming legs (pleopods) and fan tails are also found which are formed from uropods and telsons.

Also Read: DELOS’ 1 Year Journey to Be The Leader of The Blue Revolution

Organ System in Vannamei Shrimp

1. Digestive System

Vannamei shrimp have a digestive system that is divided into three segments, they are foregut, midgut, and hindgut that are connected to each other. These three parts are covered by a peritrophic membrane that serves as a barrier. Usually, this digestive system can be seen quite clearly on the back of the shrimp.

The foregut digestive tract is located in the cephalothorax, starting from the mouth, esophagus, and stomach. The midgut digestive tract is located extending from the cephalothorax to the 6th segment of the shrimp stomach. Lastly, the hindgut of the digestive tract is located at the back.

2. Respiratory System

Gills are the respiratory organs of vannamei shrimp and other crustaceans. In vannamei shrimp, there are a pair of gills enclosed in a branchial space. These gill structures are classified as dendrobranchiate gills. When shrimp breathe, gas exchange takes place in the gill lamellae.

Apart from being an organ for breathing, the gills of the vannamei shrimp also plays several other important roles. Starting from maintaining salt and water balance, ammonia excretion, and calcium absorption, to acting as a filter for foreign particles in the hemolymph.

3. Circulatory System

Even though it has a transparent white body, it turns out that vannamei shrimp also has a circulatory system like humans. This circulatory system consists of the heart, hematopoietic sinuses, hematopoietic tissue, and lymphoid organs.

The vannamei shrimp’s circulatory system is classified as a semi-open circulatory system with the heart located dorsally in the cephalothorax.

4. Nervous System

You must be familiar with the phrase “shrimp brain”, right? However, in contrast to the phrase “shrimp brain” which means stupid, the brain in vannamei shrimp has an important role in the nervous system.

The nervous system of shrimp and other crustaceans consists of a brain located in the dorsal part of the cephalothorax as the main control center that is connected to all parts of the shrimp’s body. The brain consists of three parts, which are the protocerebrum, deutocerebrum, and tritocerebrum.

5. Reproduction System

The male vannamei shrimp reproductive system consists of a pair of testes, vas deferens, and ejaculatory ducts or terminal ampoules. While the spermatids are produced in spermatogonia with maturation in the seminiferous tubules.

While the female vannamei shrimp reproductive system consists of paired ovaries that extend from the middle of the thorax to the posterior end of the pleon and oviduct. Because shrimp have an external reproductive system, female shrimp have a genophore channel located on the third pereiopod to release eggs that are ready to be fertilized.

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

Start Your Vannamei Shrimp Cultivation with DELOS!

Even though it belongs to the crustacean subphylum, shrimp still have a complex organ system and body morphology. Both complement each other to support the survival of this Litopanaeus vannamei.

For those of you who want to start vannamei shrimp farming, DELOS is ready to help you explore new opportunities for this business. DELOS uses an approach to social, environmental, infrastructure, and regulatory issues at predetermined pond locations to ensure that your cultivation is running optimally.

Through end-to-end farm management, supported by the AquaHero app and the Supply Chain Integration program, DELOS is able to maximize the productivity of shrimp farms while helping to get the best products and prices for your aquaculture needs.

Contact DELOS immediately via contact@delosaqua.com or submit a problem you want to discuss vannamei shrimp cultivation via the contact column on our website www.delosaqua.com. Start shrimp farming with DELOS!

13Sep

AquacultureFun Read

10 Types of Shrimp for Aquaculture and Aquascape

Did you know that more than 300 types of freshwater shrimp, brackish water, and seawater are scattered worldwide? So about which kinds of shrimp can be consumed and have economic value for cultivation? Read this article to find the answer.

Shrimp has long been one of the favourite seafood menus for people around the world. Because besides being easy peasy to process, shrimp has a delicious taste with soft meat.

However, it turns out that not all types of shrimp can be consumed and have high economic value. Several types of shrimp are more suitable for aquascapes because they have unique and diverse colour patterns.

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

Types of Shrimp for Culinary Use

1. Tiger Shrimp

Tiger shrimp is a marine commodity with a reasonably high selling value. Shrimp which are often referred to as tiger shrimp, are commonly found in the waters of Southeast Asia, South Asia, Australia, and East Africa.

Due to their large size, tiger prawns are suitable for processing into various types of dishes, starting from sauteed shrimp, grilled shrimp, and tempura to shrimp curry.

2. Vannamei Shrimp

jenis jenis udang — Source: DELOS Documentation

Not inferior to tiger prawns, vaname shrimp is also a type of shrimp that has high economic value, especially as an export commodity. This shrimp, also called white leg shrimp, has excellent environmental resistance compared to other types of shrimp.

Not only superior in terms of resistance to the environment, but vaname shrimp also has a soft and chewy texture when eaten. That is why this shrimp is chosen by many farmers to be cultivated.

3. Jerbung Shrimp

Shrimp jerbung may be one of the names of shrimp that you rarely hear. This is because the demand for jerbung shrimp in the world market is high because the colour tends to be redder when cooked. But, this type of shrimp is also one of the potential export commodities from Indonesia, you know.

Therefore, jerbung prawns are considered an alternative species suitable for cultivation other than tiger prawns and vaname shrimp.

4. Galah Shrimp

Prawns that can be consumed and are suitable for cultivation are galah shrimp that also called as giant prawns. It has high economic value and is easy to cultivate, making this type of shrimp an alternative choice for farmers.

The hallmark of this shrimp with the Latin name Macrobrachium rosenbergii is the presence of long claws resembling a pole. In addition, this shrimp is physically more significant than other shrimp. Therefore in Indonesia, this shrimp is known as udang galah.

5. Dogol Shrimp

The last type of shrimp for cultivation is dogol shrimp. This is because the market demand for dogol shrimp is relatively high. This shrimp is also one of the high-value fishery commodities on the market.

The characteristics of dogol shrimp are in their physical condition, which is not too big but not too small. In addition, the skin is also thicker and coarser in texture compared to other types of shrimp.

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

Types of Freshwater Ornamental Shrimp

6. Blue Pearl Shrimp

Blue pearl shrimp is a type of ornamental shrimp originating from Taiwan. This shrimp has a bright blue colour, like a glowing pearl, so it is very suitable to be kept in an aquarium.

7. Bumble Bee Shrimp

This shrimp belongs to the Caridina family. As the name suggests, this bumble bee shrimp has a black, yellow, and white colour pattern similar to a bee. Usually, bumble bee shrimp are kept in an aquascape with aquatic plants, wood, and ornamental stones.

8. Red Cherry Shrimp

Still from the Caridina family, the Caridina spinata shrimp is the most beautiful ornamental shrimp in Indonesia. With the dominance of bright red colour, this shrimp looks very striking and is suitable for those who want to start aquascape hobbies.

9. Vampire Shrimp

Vampire shrimp or vampire shrimp is a type of shrimp originating from West Africa and South America. This type of shrimp is unique in how it takes its food by grabbing it with its two small hands.

Shrimp with the Latin name Atya gabonensis has a grey body that tends to be white. Meanwhile, in terms of size, vampire shrimp are ornamental shrimp with the largest body size among other types of ornamental shrimp.

10. Red Rili Shrimp

Red rili shrimp is a type of ornamental shrimp that is similar to red cherry shrimp at first glance. But the difference is, that red rili shrimp have a white pattern in the middle of their body. Usually, this species can grow up to 3 cm long. With its size, this shrimp is very suitable for aquascape.

Also Read: DELOS Launches Inspirational Podcast on Aquaculture, DELOS Talks

Increase Your Shrimp Farm Productivity with DELOS!

Until now, almost 300 species of shrimp have been found all over the world. However, not all types of shrimp can be consumed and cultivated. Some of them are more suitable to be used as ornamental shrimp for aquascape.

For those familiar with various types of cultured shrimp, names such as vaname shrimp, tiger shrimp, and giant prawns may be familiar. Even though it has a high economic value, cultivating these shrimp will not immediately make you profitable. Because many factors can affect the success of cultivation, one of which is the management of the pond you have.

That’s why DELOS is here for you. By managing shrimp ponds from upstream to downstream, we can help increase your shrimp ponds’ productivity by up to 300%. Moreover, our Farm Management is supported by the AquaHero application to make it easier to monitor pond conditions.

No need to hesitate. Contact DELOS at contact@delosaqua.com or submit via the contact column on our website www.delosaqua.com to discuss your shrimp farm problems. Increase your shrimp farm productivity with DELOS!