Culture Technology of Roche Shrimp Culture Prospect of Roche Shrimp

Pond: the bottom is flat, the water quality is fresh, do a good job in the construction of escape prevention facilities. Clear the pool: drain the pool water 20-30 days before stocking, remove too much silt and disinfect the pool with quicklime. Water grass: the water level line of 70 cm on the pond slope around the pond grows hollow vegetables, water peanuts, bitter grass and so on. Stocking: when the water temperature is above 20 ℃, 2-25000 shrimp seedlings are released per mu. Bait: artificial bait combined with pellet feed. Management: patrol the pond sooner or later, find the disease and deal with it in time.

With the improvement of people's living standards, many people have more stringent and fastidious requirements on the quality of life, especially in diet. Shrimp is one of people's favorite ingredients, nutritious and delicious, favored by many people. There are many kinds of shrimp. Today, the editor will lead you to learn about Roche shrimp.

Culture technique of Roche Shrimp

1, pond preparation: shrimp pond area of 1000-5000 square meters is appropriate, effective depth of 1.5-2.0m, flat bottom, fresh water quality, convenient drainage and irrigation, good water retention, large slope around, at the same time do a good job in the construction of escape prevention facilities.

2. Clear the pond for disinfection: drain the pond water 20-30 days before stocking, remove too much silt, renovate the pool ridge, use 75 kilograms of quicklime per mu or bleach powder, bleach powder and other drugs, thoroughly clear the pool for disinfection.

3. Aquatic grass cultivation: after pond disinfection, plants such as hollow cabbage, water peanut, bitter grass and other plants are planted on the water level line of 70 cm around the pond to form a grass belt, with a width of about 1 meter and a plant spacing of 0.2 meters, accounting for about 15-20% of the total area of the pond.

4. Seedling stocking: shrimp seedlings can be released when the water temperature in shrimp ponds is more than 20 ℃. It is best to release young shrimp with specifications of more than 1.5cm and survival rate of more than 75% after intermediate cultivation in greenhouse or greenhouse, with a stocking capacity of 2-25000 pieces per mu.

5. Feed feeding: the diet of Macrobrachium rosenbergii is omnivorous and animal, so the feed should be fed mainly with artificial pellet feed with a crude protein content of 35-40%, and properly fed with live bait such as partially chopped small miscellaneous fish, snail meat, clam meat and so on.

6. daily management: persist in patrolling the pond in the morning and evening, observe the eating, molting and growth of shrimp, pay attention to the changes of water quality and water temperature, fish out the residual bait and sundries in the water in time, make a good record of pond patrol, and deal with the disease in time.

The Culture Prospect of Roche Shrimp

Macrobrachium rosenbergii is native to the tropics and requires high temperature during its growth. In the middle and lower reaches of the Yangtze River, stocking begins from May to June, fishing in October, and the market is relatively concentrated. Macrobrachium rosenbergii is generally not eaten at other times. In order to increase income, some places began to use greenhouses to raise shrimp, so that the fishing time is greatly ahead of schedule, and the benefit is doubled.

Macrobrachium rosenbergii has rich nutrition, delicious taste, large size and good market. Macrobrachium rosenbergii has miscellaneous food habits, fast growth, easy breeding and good market prospects. it has become one of the key developed excellent aquatic products in our country. Not only pond culture has been greatly developed, but also rice field culture has been successful. At present, the culture of Macrobrachium rosenbergii is in the stage of development, and Macrobrachium rosenbergii culture has a broad prospect.

Cost analysis of Macrobrachium rosenbergii culture per mu

Cost index: less than 4200 yuan per mu (less than 14 yuan per kilogram of shrimp), of which:

1. The cost of disinfection and pond cleaning: 100 yuan per mu;

2. Shrimp fry: 250-30 yuan / ten thousand tail, 40, 000 tail is 1200 yuan / mu;

3. Feed: the feed coefficient is 2.2-2.3, using self-made feed, according to 3 yuan per kilogram of feed, the feed cost is 1980 yuan / mu;

4. Other expenses: 920 yuan / mu, of which: electricity charge 150 yuan / mu; pond rent 600 yuan / mu; big fish seedlings: 70 yuan / mu (40 fish per mu, 0.25 kg / mu); helper and depreciation 100 yuan / mu.

Common diseases of Roche shrimp and their prevention

1. Gill rot

Symptoms: Gill filaments are swollen, gray and brittle. In severe cases, the tip of the Gill fester, and the necrotic part of the Gill shrinks or falls off. Some Gill filaments form a dark-brown dividing line at the junction of festering tissue and non-festering tissue.

Prevention and control methods: first use Zhongduqing + water basis, clear Gill to detoxify, permeate the water body, and enhance the quality of shrimp. Use Diduxiao + Le Mi oxygen in the evening, once a day, twice a day.

II. Ciliosis

Symptoms: the body surface of diseased shrimp is parasitic with a large number of ciliates (bell worms, branch worms, condensed worms, etc.), the body surface is brownish fluffy, affecting the feeding and molting of diseased shrimp, and can cause shrimp death in serious cases. The main reason is the excessive fertilizer of water quality and the mass reproduction of bell worms, branch worms, condensed worms and so on.

Prevention and treatment methods: change the water regularly to keep the water fresh; disinfect the water with 0.4ml / kg bromochlorohydantoin; sprinkle with the mixture of copper sulfate and ferrous sulfate (5:2) with a concentration of 0.7mg / kg.

Roche shrimp is an ideal breed because it has many advantages, such as fast growth rate, short growth cycle and easy feeding. Of course, for farmers, the most important thing is that its output is high, which can bring relatively rich benefits.