What is the knowledge of sand silkworm breeding technology?

There is a duck in that place.

There is such a saying in the silkworm breeding circle:"Raising silkworms well is half the battle! ”This illustrates the importance of the silkworm stageThe silkworm period is an inevitable stage in the process of raising silkworms, during which it can develop into a large silkworm and eventually form a cocoon through continuous eatingTherefore, the silkworm breeding technology should be comprehensive, and the following points should be achieved:

Mulberry leaves are mainly harvestedYoung leavesMainly, the food needs to be chopped to facilitate the digestion and nutrient intake of the silkworms; Picking time is inMorning and eveningIf the amount of food is insufficient, it can be picked in the afternoon; The picking standard is determined according to the age of the silkwormBefore the first instar, the green young leaves are the mainstay, and the fourth leaf position is picked, and the slightly green mulberry leaves are taken after the second instar, and the leaf position is the sixth leaf, and the small silkworm in the third instar stage has changed significantly, and the volume becomes larger.

Silkworm management includes silkworm base renewal and silkworm sand treatment. Because the silkworm seat is fixed, and the volume of the silkworm is expanding, the purpose of updating the silkworm seat is to allow the silkworm to have more space to eat and move, and will not be limited by being squeezed, which can increase the number of silkworm seats, or expand the volume of silkworm seats. Silkworm sand removal refers toRemove debris such as silkworm sand and residual mulberry branches, except for the first instar to carry out sand removal, too small silkworm sand removal will cause losses, 1 time of sand removal for 2nd instar, 2-3 times for 3rd instar

When the silkworm eats to a certain extent, it enters the sleep stage, and after sleeping to the next age, the silkworm farmer needs to do a good job of pre-sleep treatment and sleep protection, and what to do before sleep isAdd nets to remove sandto ensure cleanliness and hygiene, and give silkworms a good sleeping environment. Sleep protection isMaintain a relatively quiet environment with good air quality, sufficient light and no polarization and wind blowing, and proper moisturizing if necessaryIn this way, the silkworms will successfully molt, and doing these is a kind of protection.

The healthy growth of silkworms is inseparable from professional management, including feeding, silkworm seat management and sleep management, which are all important links, and if they are not done well, they may affect the final quality of silkworm cocoons.

Silkworm feeding techniques are available: control the growth temperature and environmental humidity of silkworms. Adapt to high temperature and humidity environment, and the temperature is generally controlled at 28 degrees Celsius.

Wet and dry difference Celsius Celsius. The spring silkworm seeding time should be carried out from April to May, and the disinfection of the silkworm co-breeding room should be carried out 1 week before the silkworm seeding.

Ingredients: glutinous rice flour, green tea powder, strawberry juice, black tea bags, sesame seeds, sugar, lard, water and raisins. Here's how:

1. Add an appropriate amount of water to green tea powder to make green tea powder water, add hot water to the black tea bag, soak it, drain the tea bag, and let it cool for later use.

2. Divide the glutinous rice flour into 4 parts, add water, green tea powder water, strawberry juice, black tea juice and form a dough with moderate softness and firmness.

3. Beat the cooked sesame seeds into sesame powder, add an appropriate amount of sugar and raisins and mix well, and then add a small amount of lard to make the filling.

4. Take an appropriate amount of dough of various colors, roll it round and flatten it and wrap it with sesame filling to make glutinous rice balls.

5. Add water to the pot and bring to a boil, put in the wrapped rice balls and cook until the rice balls float.

We must pay attention to the environment of feeding, which is very important, pay attention to cleanliness and hygiene, we must carefully feed, we must choose the right variety of silkworms to feed, we must pay attention to temperature, pay attention to humidity, and pay attention to the situation of mulberry leaves.

First of all, you should choose the right place for breeding, learn professional feeding techniques, and you should choose the right feed, learn how to prevent and control some diseases, as well as control the temperature and humidity.

It is necessary to choose the right mulberry cocoon according to the local situation, so that it can be better cultivated, pay attention to the breeding environment, pay attention to the temperature of breeding, and pay attention to mulberry leaves also need to pay attention to hygiene.

1 hatching silkworm eggs When raising silkworms, it is necessary to obtain silkworm eggs with round particles and black colors, and wrap them in paper towels, put them in a warm environment such as electric blankets and close-fitting pockets, and the silkworm eggs will hatch after a day.

2. Provide food.

Silkworms feed on mulberry leaves, and provide fresh mulberry leaves once a day when breeding, and clean up the leftover mulberry leaves eaten the day before, and silkworms do not drink water, and the required water is obtained from the leaves, so the mulberry leaves provided should be dried in advance to avoid residual moisture, resulting in the phenomenon of silkworm diarrhea and death.

3. Clean up regularly.

In the process of growth, silkworms will continue to eat, excrete, and clean up the feces once a day to ensure the hygiene and cleanliness of the environment, and there are more natural enemies of silkworms, birds and birds, ants and other animals will prey on silkworms, silkworms should be placed in a safe environment, and regularly check the tightness of the container.

4. Cocoon management.

Silkworms will enter the cocoon period after one month of hatching, and the silkworms at this time can spin silk in the corner of the carton to make cocoons, but if the number of breeding is large, it is best to put bamboo strips or branches in the carton after removing the leaves and disinfecting treatment, so as to provide a cocoon-making site for silkworms.

1. Silkworm eggs.

1. Build a comfortable "home": prepare a box with a lid and tie a small hole, spread a layer of clean white paper inside the box, and put the silkworm eggs in the carton. If the climate is drier, spray a small amount of water every day. As the weather gradually warms up, the ants and silkworms will come out on their own.

2. During this time, it is necessary to see if there are any new silkworms every day, and generally the most in the morning. The silkworm has to eat as soon as the egg shell emerges, so it should be gently brushed on the mulberry leaf with a brush or feather.

Second, the larval stage of feeding.

1. Prepare food: mulberry leaves, be sure to wash and dry them with water before feeding, do not feed silkworms with yellowed and rotten leaves, otherwise silkworms will be poisoned or diarrhea. In order to prevent the surplus leaves from wilting quickly, you can put it in a plastic bag and tie the bag tightly and put it in a cool place.

2. Feed silkworm leaves, 4 times a day, early morning, noon, afternoon, and evening. The amount should be appropriate each time to avoid waste. You can put more leaves in the evening, because silkworms eat mulberry leaves all night. Ant silkworms should be fed with young leaves, and the leaves should be cut into pieces or strips.

3. Always be clear about the feces and leftover leaves: when changing the leaves of the silkworms, you can directly cover the new leaves on the old leaves, and wait for the silkworms to climb on the new leaves and take away the old leaves. This can reduce the ** of silkworms, and it is convenient to remove residual leaves and silkworm manure.

Six tips for raising silkworms.

1. Spring leaf yield measurement.

Before raising silkworms, it is necessary to estimate the yield of mulberry leaves, so as to reasonably determine the number of silkworms and achieve a balance between silkworms and mulberry leaves. If the yield of mulberry leaves is too low, it will lead to insufficient seed customization of silkworms, and if the yield of mulberry leaves is too high, it will lead to insufficient amount of edible mulberry leaves of silkworms and a decrease in the quality of silkworm cocoons.

2. Disinfection and preparation.

Before raising silkworms, it is necessary to clean and disinfect the silkworm tools, silkworm room and the surrounding environment, in which the silkworm tools and silkworm room can be sprayed, sprinkled and brushed with lime slurry and bleaching powder, and then used to disperse the smoke, and the surrounding environment can be sprinkled with lime or sprayed with bleaching powder for disinfection.

3. Adhere to the co-breeding of silkworms.

Gathering silkworm seeds together is convenient for replenishing and promoting greening, improving hatching rate, and at the same time helping to create a good feeding environment and do a good job in disinfection and disease prevention. In addition, the silkworms concentrate on breeding provincial labor, provincial and provincial mulberry leaves, which is convenient for technical personnel to provide technical guidance.

Six tips for raising silkworms, attached to the growth process of silkworms.

4. Increase mulberry leaf production.

1) Spray mulberry leaves with urea, superphosphate, plant yield regulators, etc.

2) Before leaf opening, pick new shoots to speed up the ripening speed of several mulberry leaves at the top, and improve the yield and quality of mulberry leaves.

3) first pick the three-eyed leaves, and then pick the new shoots, of which the three-eyed leaves mature earlier, generally before May 15 has been basically mature, the follow-up is mainly the growth of new shoots, so the production of 1-4 years old first pick the three-eyed leaves, can significantly increase the yield, improve the quality of mulberry leaves.

5. Silkworm management.

1) Ventilation and dehumidification during silkworm breeding.

2) Before giving mulberry, wash hands with disinfectant water after removing sand, and sprinkle lime powder and charred bran on the silkworm seat to keep it dry.

3) Remove sand frequently, and add silkworm flies to prevent and control fly maggot disease in accordance with regulations.

4) Dead silkworms are treated with lime powder.

6. Select excellent tools and strengthen the management of the company.

At the same time, in order to improve the hole penetration rate and reduce humidity, the checkered clusters can be pre-hung outdoors, and then the cocoon can be transferred into the room when the cocoon is formed, and the doors and windows are opened to form convection, strengthen moisture drainage, and improve the quality of the cocoon.

1. Establish and improve the management system.

Mulberry sericulture is a high-tech production activity, such as silkworm breeding, through unified breeding, unified management, unified inspection and quarantine, silkworm mid-term management, late harvest, to the market, etc., all need a complete management system, in order to better improve production efficiency and competitiveness.

2. Scientific and standardized management.

The development of mulberry sericulture is inseparable from scientific management and technology. On the one hand, the selection and cultivation of mulberry seedlings and the management of mulberry orchards should be carried out in strict accordance with the standards; On the other hand, strict management and application of science and technology are also required in the process of breeding.

Due to the variety of reproductive methods, there are some species that we cannot raise. To put it simply, what can be raised now are several species of sand silkworms (genus) and sand silkworms (genus).

There is another kind, the Japanese call it "** sand silkworm" commonly known as "red sand silkworm", in fact, there is a kind of red sand silkworm scientific name rock worm, the price is as high as 10,000 yen per kilogram, it is a precious species, and it is also trying to breed.

If you want to breed which kind of sand silkworm, first of all, it depends on the substrate, if it is clay bottom, you can not raise rock insects, and then what is it used for, such as for raising good shrimp, you can only raise sand silkworms. Factory artificial farming.

In the eighties, it was first seen in Japan, mostly for the first artificial seedling, and then the implementation of seedling stocking, the specific practice is mostly carried out in the artificial indoor pool (trough), the seedling is not spread with sand, and the seedling is raised to spread about 30 cm of coarse sand. Fill with water daily, bait 2 3 times, with aeration. In this way, as long as the water supply is timely, the temperature is suitable, the density is reasonable, and the bait is suitable, it only takes half a year to grow into a commodity, and the output is generally 10 kg per ping (about 3 kg per square meter).

Extensive pond and marsh culture.

Artificial (or semi-artificial) breeding of seedlings, large-scale stocking in earthen ponds, and the use of shallow pond depressions that are suitable for raising fish and shrimp without changing the residue is the key. In view of the large area of these waters, and most of them are initially developed, the pesticide control is poor, and the sand silkworm itself is a kind of bait organism (including adult larvae), so the water intake work of clearing the pond must be stricter than stocking fish and shrimp, so as to prevent the invasion of a variety of organisms, affecting survival and production. Judging from the actual performance, as long as the density is appropriate and the management is appropriate, the yield per mu can be more than 50 kg.

Stocking of proliferative tidal flats.

It is from the perspective of multiplication of nuclear sources. It is reported that Shandong and Liaoning artificially stocked the larvae of sand silkworms that are about to dive in the sand in a certain range of natural sea areas (intertidal zone) to increase the yield by 50-75 times, and the method is also very simple, and the social and ecological benefits are very significant.

The sea sand silkworm you are talking about is the sea maggot? There are also those called sand silkworms or sea centipedes.

It is a kind of all-purpose bait used for sea fishing, and its status is equivalent to that of earthworms used in freshwater fishing.

If you want to breed in large quantities, it is not easy to raise at home, one is that there is no space, and the other is that there is no seawater, and you can only raise a small amount.

The living environment of sea maggots is mainly in the mud of the shallow sea, which has high requirements for humidity and salt, can not be dry, can not leave the sea water for too long, and its nutrition is the microorganisms and algae in the mud on the seaside.

Therefore, if you want to breed in large quantities, it is better to pack a beach or a muddy land by the sea as a farm.

Its environment must ensure that 1. there is seawater; 2. There is muddy ground; 3. It cannot be dried.

I think that with seawater and sludge, its feed is basically left alone, and nature will provide a lot.

In addition, I think we have to pay attention to the location, at least after the tide rises, the sea maggots and mud will not be swept away.

In short, to ensure that there is always an environment with mud, if you want to provide more nutrients, you should add new mud to it diligently.