How to raise River Shrimp Culture techniques of freshwater River Shrimp

Shrimp is a kind of aquatic product that we often eat in our life. there are two kinds of shrimp, one is sea shrimp and the other is river shrimp. Although sea shrimp is delicious but not common and expensive, river shrimp generally live in rivers, lakes, ponds and other places. It is a kind of aquatic product with high protein and low fat, and it is also very popular with consumers. Nowadays, the cultivation of river shrimp has also become a more popular breeding project, so how to raise river shrimp in the end?

How to raise river shrimp

1. Pond conditions

It is appropriate to choose freshwater ponds or shrimp ponds with an area of 3 mu and a water depth of 1.5 to 2.5 meters, with sufficient fresh water sources, no pollution and sandy bottom.

2. Fertilize and cultivate bait

One week before stocking, the shrimp seedlings were filtered with 60-80 mesh sieve, 30 cm of water, and 50 kg of base fertilizer (fermented animal manure) or 5 kg of urea per mu to cultivate the basic bait.

3. Shrimp fry restocking

In general, shrimp fry can be released when the water temperature is stable at 18-20 ℃ in late May. Shrimp seedlings need to be desalinated for more than a week, with a specific gravity of less than 1.003 before they can be released. Generally, 30,000 shrimp seedlings of 0.7-1.0 cm per mu are stored, and the seedlings below 0.7 cm need to be temporarily reared. A total of 80,150 silver carp species of 10 cm and 20 cm can be mixed in shrimp ponds.

Feed. Hey. There is no need to feed the shrimp seedlings in the pond for one month, but mainly depends on the plankton in the pond. One month later, the compound feed was fed, supplemented by fresh fish, shellfish, etc., and the feeding rate was generally 3% or 5% of the shrimp body weight. The amount of bait can be increased appropriately from July to September, according to the principle that there is no residual bait, the number of bait is 2 to 3 times a day, the amount of bait in the daytime accounts for 3%, and the amount of bait in the evening is 3%.

4. Diverting water to prevent diseases

After 10 days of stocking, the shrimp fry began to add water gradually, adding 10-15 cm of water per week. Change water 20,30cm every 2-3 days in high temperature season. Every half month or so, the whole pool is sprinkled with 5 kilograms of quicklime to improve the water quality and bottom quality, as well as sterilization to promote shelling and growth. At the same time, 1 ‰ ~ 3 ‰ garlic bait should be mixed for 3 days at 15 ~ 20 days.

Culture technology of freshwater river shrimp

1. Feed preparation

A week before putting shrimp fry into the shrimp pond, we should use 60-80 mesh silk mesh to filter, first put in 30 centimeters, apply 50 kilograms of base fertilizer per mu, and can also apply five kilograms of urea, so that the basic feed is very good. can also save part of the cost, try to keep the transparency of the pond water at about 30 centimeters.

2. Shrimp fry restocking

After all the preparatory work has been done, the shrimp seedlings can be released. The most important thing for stocking is to control the stocking density. The breeding density should be well controlled when the shrimp ponds are established, and the density should be controlled according to the size of the shrimp ponds. Generally speaking, if the yield of one mu reaches 80 kilograms, the corresponding seedlings should be released more than 80,000 tails, if the pond conditions are good or bad. If good and conditional, you can get an aerator for the shrimp pond, which can play a good role in increasing oxygen for excessive density.

3. Feed feeding

The eating habits of river shrimp are relatively miscellaneous, so relatively speaking, the diversity of feed should be paid more attention to, the feed should not be fed too single, and the feed should be changed every once in a while to ensure a balanced intake of nutrients.

4. Daily management

At ordinary times, you only need to observe the cleanliness and hygiene of the water quality, and at other times, it is mainly necessary to change the water frequently in the high temperature season, and quicklime is used for disinfection every half a month to ensure the asepsis of the water source. this not only improves the water quality, but also ensures the matrix at the bottom, but also promotes the growth of the shell. From August to October every year, the stock of river shrimp will increase greatly, because the climate change is very great at this time, so it is easy to lead to hypoxia, so it is best to prepare an aerator in the shrimp pond.

Where can I buy shrimp fry?

General specialized farms are purchased, and there are also purchases on some formal websites, but you need to be cautious if you buy on the website.

The living habits of River Shrimp

The main results are as follows: 1. Macrobrachium rosenbergii is an omnivorous aquatic animal, which is partial to animal feed, and artificial breeding is mainly fed with commercial feed. The optimum water temperature for growth was 18-30 ℃. When the water temperature dropped to 4 ℃, it entered the overwintering stage. When the water temperature rose to more than 10 ℃, the activity and feeding increased gradually.

2. Camp benthic life, like to live in slow-flowing places overgrown with water and plants, with water depths ranging from 1-2 meters to 6-7 meters. In summer and autumn, river shrimp look for food and breed in the shallow water along the bank, and in winter they move to deeper water areas to survive the winter, with little feeding and activity.

3. The water temperature is 18 ℃. The sexually mature river shrimp begins to mate and spawn, and mating usually takes place near spawning.

4. River prawns are backlit, hiding in the dark during the day and coming out at night. The reproductive season is unusual, and during the day they also come out for mating activities, and when feeding, they also come out to compete for food during the day.

Through the above content, I believe that everyone has a certain understanding of the culture technology of river shrimp. The breeding capacity of river shrimp is very high, and the adaptability is strong, the taste is delicious, so many advantages of culture, it can be seen that the prospect of culture is also very considerable.