When raising silkworms in greenhouses, when should they generally enter the shed

The time of entering the shed when raising silkworms in the greenhouse: (1) The time of entering the shed, the silkworms can be raised in the silkworm room outside the shed until the second day of the fourth instar or the second day of the fifth instar. If you enter the shed immediately after feeding, because the silkworm has just molted at this time, the weak resistance to the environment is easy to affect the health of the silkworm.

2) Entering the shed: when entering the shed, the silkworm platform is built first; Before the silkworm enters the ground, sprinkle a layer of fresh lime powder on the ground, and then spread a layer of straw or wheat straw to build a silkworm base. When moving silkworms, pay attention to the first is to be sparse, one silkworm is three; Second, it is classified in batches, and silkworms with the same development progress are put together and discharged in the order of development; Third, when releasing silkworms, they should be discharged in order at one end of the greenhouse to facilitate temperature and humidity control time interval.

1. Silkworm room environment:

The silkworm room can choose a greenhouse or a cement house, the ground must be flat, clean and tidy, and there must be diagonal windows before and after, and it is best to open the corner windows if conditions permit. Install windows, doors and mesh to prevent flies.

or other insects fly into the silkworm room, and the corner window should also be equipped with barbed wire to prevent rats from penetrating. If you want to raise 1 silkworm, you need about 30 square meters of silkworm breeding area and 10 square meters of dedicated mulberry room.

2. Silkworm tools and medicines:

If you raise 1 silkworm, the main silkworm tools and medicines are: 15-20 silkworm dustpans with a width of rice; 4 leaf baskets, about 20 square meters of medicinal film; 2-3 pairs of slippers, placed in the silkworm room and mulberry leaf room respectively; several red bricks; 2 sterilization barrels and 1 sprayer for the silkworm room; Lime about 60 kg.

3. Mulberry leaves: for silkworm babies.

Provide fresh mulberry leaves, no need to buy or pick too many mulberry leaves at once, only need to take one amount. If you want to provide fresh mulberry leaves for silkworm babies in time, you can choose to plant your own mulberry trees.

It not only ensures the freshness of mulberry leaves, but also provides mulberry leaves for silkworm babies in time.

4. Disinfection: The first phase of disinfection should be completed within one week before the silkworm is harvested. That is, it is necessary to thoroughly clean the silkworm room, mulberry leaf room and the surrounding environment, and place the silkworm tools in the sun, and then disinfect the silkworm room and silkworm tools with a special disinfectant.

The problem that needs to be paid attention to is that we should pay attention to the temperature and humidity of silkworms, control the hygiene of the greenhouse, and often feed some fresh mulberry leaves to the silkworms, so as to ensure the normal growth of silkworms, and also disinfect and sterilize the greenhouses.

Pay attention to the temperature, humidity, light time, daily freshness of food, consumption amount, and daily hygiene.

First of all, it is necessary to grasp the temperature and the environment of breeding to do clean and hygienic problems, and then in the process of breeding, we must replenish fertilizer in time, and then we also need to do a good job of ventilation, and we must clean up the garbage in this place in time, and we must also do a good job of ventilation, and we must increase the number of times we give mulberry.

We must pay attention to cleanliness and hygiene, maintain a warm environment, we must pay attention to the growth of silkworms, we must cultivate them according to the growth of silkworms, we must not have too high temperatures, and we must pay attention to the number of times we eat.

It is necessary to pay attention to temperature control, to avoid being exposed to the sun, to add some fresh leaves, to control the humidity, to control the indoor environment, to clean the room regularly.

Greenhouse sericulture should pay attention to these problems:1Pay attention to disease prevention and disinfection, and conscientiously do a good job in the disinfection of the silkworm seat during the feeding period, so that fresh lime powder is sprinkled once a day, and reasonable arrangements are made for antibiotics to add food, kill silkworm flies, etc.; 2.

Strictly prevent the hazards of high temperature, and take various effective cooling measures in the afternoon on high temperature and sunny days to reduce the temperature in the shed and reduce various hazards caused by high temperatures; 3.Do a good job of preventing natural enemies and drug damage. Various measures should be taken during the period of word rearing to prevent the harm of rats, ants, toads, poultry, etc.

At the same time, it is necessary to strictly prevent poisoning caused by pesticides in mulberry orchards or other crops around the greenhouse.

When raising silkworms, the temperature in the greenhouse can be maintained at 25, not too high and not too low, otherwise the silkworm babies will freeze to death.

It can be controlled by air conditioning, and it can be controlled by manual means, so that the temperature in the greenhouse can be adjusted.

1. Shed site selection Choose a place with high and dry terrain, flat, ventilation and sunshine, close to the mulberry garden, far away from the orchard and vegetable garden, and convenient for water and electricity.

2. The material preparation should be determined according to the area of the silkworm farmer's mulberry garden and the number of silkworms. Generally, 2000-3300 square meters of mulberry garden should be built a 20 meters long, 7 meters wide, an area of 140 square meters of greenhouses, each season can raise about 3 silkworm seeds. Its material preparation is:

50 bamboo poles with a length of about 5 meters, 175 square meters of plastic film (25 meters long, 7 meters wide); 200 square meters of shade net (25 meters long and 8 meters wide), or 180 square meters of straw curtains (straw or wheat straw), that is, 45 straw curtains with a length of 4 meters and a width of 1 meter, and 52 square meters of gauze (52 meters long and 1 meter wide); Mulch film 110 square meters missing regret vertical (110 meters long, 1 meter wide). and the corresponding wire and nylon rope front destruction for bonding.

3. After the greenhouse is built, dig a drainage ditch 20 cm deep around it to prevent rainwater from entering the shed. In addition, the two ends of the greenhouse and the surrounding membrane on both sides can be built into a fixed wall with bricks, and ventilation windows are set on the gables at both ends, and the exhaust fan is installed to accelerate the ventilation when it is stuffy, and the effect is better.

4. Silkworm base is set up in a greenhouse to raise silkworms, usually using the feeding method of silkworm strip mulberry breeding and silkworm leaf breeding. Generally, three channels and four rows of silkworm seats can be set up along the direction of the greenhouse, each row of silkworm seats is 1-2 meters wide, and the middle channel is one meter wide. The passages on both sides are each meter wide to facilitate the disinfection and operation of mulberry, seat expansion, silkworm seat disinfection and upper cocoon.

Set up the earth fire dragon in the middle channel, and heat it at low temperatures.

5. 3-5 days before disinfection and prevention of serious disease silkworms into the shed, the ground in the shed can be disinfected with 1 effective chlorine bleaching powder; Second, use poison to dissipate fumigation and disinfection; 3. Sprinkle fresh lime powder on the ground for disinfection; Fourth, sprinkle a thin layer of chlordane powder on the ground in the shed, and you can also spray the ground with 1:20 laundry detergent to prevent ant damage. If there is a rat hole, inject drugs to kill rodents in time.

There is a common problem of rural people raising silkworms, that is, the amount of breeding is small, the scale is not large, this situation is long-term, because in the countryside, there are too many limiting factors, and if you want to change this situation, it is a good attempt to raise silkworms in greenhouses. At present, the application of greenhouse silkworm farming is not so common, but the prospect is very good, and it will become more and more popular in the future, because it has many advantages, and I will talk about what it includes for its advantages.

The first point is that it is conducive to the development of sericulture and moderate business scale. If the scale of silkworm farmers want to build a special silkworm room, it will be limited by the local rural housing policy, not only that, farmers have to invest a lot of money, which is obviously not cost-effective, and the use of the field to bow down, or the vacant land of the homestead to build a greenhouse to raise silkworms, these contradictions can be solved, which will make silkworm farmers more acceptable, the investment is small, and it is simple to build, it is a good choice.

The second point is to save labor and cost. In contrast, the construction of the silkworm room costs a lot of cost, and the construction of the greenhouse is far lower, after all, the silkworm room needs a lot of cement, stone bricks and interior decoration materials, etc., you can directly choose to build near the mulberry garden, the picking and transportation of mulberry leaves are very convenient, when removing sand, the silkworm sand can be placed in the mulberry garden, and the mulberry tree is fertilized in the later stage, this way saves the cost at the same time, and the mulberry tree can be managed.

The third point is that it is conducive to improving efficiency through compound operation. Silkworm breeding is related to the season, it is generally divided into the first half of the year to breed, in Guangxi, the first half of the year is about 4 months, the second half of the time is the same, the idle period is longer. Due to seasonal factors, the utilization rate of equipment is low throughout the year, and a variety of operations can be carried out to increase income during the idle period of sericulture greenhouses.

In addition, there is another point of sericulture in greenhouses, that isAt present, in rural areas, many people are directly building silkworm rooms at home, which is not in line with the requirements of rural environmental improvement and ecological home constructionTherefore, sericulture in greenhouses is a good trend.

The advantage of greenhouse sericulture is that it can be centrally managed, the efficacy can be improved, and the sericulture is not easy to die in large quantities, and the income is higher.

Cost saving, improving work efficiency, simple operation, achieving the environment that silkworms want, and being able to adapt to seasonal changes are some of the specific advantages inside.

First of all, it can promote the development of agriculture, and then it can also become an industrialized structure, which can also save labor, can also improve work efficiency, and can also improve the environment, and disinfection and sterilization are also particularly efficient.

It can well regulate the temperature and humidity required for silkworm raising. Especially in the area slightly northern, if there is no greenhouse, the quality of the silk raised will not be very high, and the natural ** will not be very high.

The area of silkworm seat required for a single silkworm seed is 45-50 (usable area = 85% of construction area), and a greenhouse with a length of 23m, a width of 10m and a height of 3m can be built for every three acres of mulberry garden, with an area of about 230m2.

How to build a sericulture shed?

The location of the greenhouse should be high and east-west, so as to facilitate ventilation and heating. At the same time, it is necessary to keep away from the kiln and the factory to ensure that the air around the greenhouse is fresh.

The floor in the shed should be cemented, 10cm higher than the outside of the shed, so that it can be disinfected, moisture-proof, and ant-proof. If you use a dirt floor, spread a layer of plastic sheeting and then tamp the soil.

The walls can be built with bricks, the thickness of which is 24 cm. The inner wall can be plastered, the bottom of the surrounding can be plastered with a layer of 20cm thick cement skirt, the outer wall can be plastered, and the front and rear walls can be installed along the board.

The columns can be prefabricated cement components, and the specifications and quantities are 360cm 7 and 290cm 14, respectively. The height of the front and rear walls is not less than 3m, and the height of the shed ridge is not less than 3m, so as to facilitate ventilation and silkworm raising.

Iron doors and windows can be used, as well as wooden doors and windows. The greenhouse has a door on each hill, 1 2m wide and 1 2m high.

It is advisable to have a wide and high T-shaped window, which should be equipped with both sash and screen, and the distance between the two windows should not be exceeded.

The shed surface is fixed with bamboo poles and wooden sticks, and the vertical and horizontal skeletons are firmly connected. The scaffolding is covered with plastic film, which is then covered with a layer of wheat straw more than 20cm thick, and then covered with asbestos tiles.

Summers are hot and humid and require ventilation and dehumidification equipment. Each greenhouse can be equipped with a vent 30 cm wide and 50 cm high with a removable top cover.

Exhaust fans are installed on the tops of both hills in the greenhouse to facilitate moisture evacuation when there is no wind. If the temperature is high, a fan can be installed in the greenhouse.

A fire dragon (on the ground) can be built in the middle of the greenhouse, which is convenient for raising late autumn silkworms and heating up after feeding. It should be noted that honeycomb coal stoves cannot be used for heating.

The shed wall can be built around 40cm cement surface, which is convenient for slope protection, and drainage ditches can be excavated along the front and rear walls.

1-year-old silkworm, suitable temperature for growth is about 27-28; 2nd instar silkworms, the suitable temperature for growth is about 26-27; 3-instar silkworms, the suitable temperature for growth is about 25-26; 4th instar silkworm, the suitable temperature for growth is about 24-25; 5-year-old silkworms, the suitable temperature for growth is about 23-24.

The ambient humidity is 80-85% for 1-year-old silkworms, 85-90% for 2-year-old silkworms, 75-80% for 3-year-old silkworms, and 2-3% for dry-wet silkworms.

For 4-instar silkworms, the ambient humidity is 70-75%, and the dry-wet difference is 5-6; The ambient humidity of the 5-year-old silkworm is 65-70%, and the difference between dry and wet is.

Silkworms are a special breed in modern agriculture, and they are of great economic importance to the development of agriculture. Silkworms can be used as medicine. Silkworms can be used for different diseases.

Silkworms can also be made into silk fabrics. Silkworm seeds themselves are very economical, so how to use greenhouse cultivation?

The role of silkworm rearing in greenhouses. Greenhouse sericulture is conducive to promoting the scale and industrialization of sericulture, solving the strain problem of sericulture, realizing the separation of people and houses, and adapting to large-scale operation; Raising silkworms in greenhouses is conducive to thorough disinfection and prevention of silkworm diseases, and reduces the occurrence of silkworm diseases. Greenhouse silkworm breeding is conducive to improving the yield of silkworm cocoons, the ventilation performance of greenhouse silkworm breeding is good, the area of the silkworm seat is the first, and the large silkworm seat area can realize the small profit and quick turnover, and generally each silkworm seed can increase the average yield by about 10%; The ventilation conditions of the silkworm bushes on the greenhouse are better than those indoors, the dehumidification speed is fast, and the humidity is small, which is conducive to improving the quality indicators such as the cocoon emergence rate.

Greenhouse silkworm raising is conducive to silkworm labor-saving, greenhouse silkworm labor-saving, silkworm period can take mulberry, silkworm raising, less back breeding, feeding operation is simple, the fifth instar period does not need to remove sand every day, spring silkworm planting mulberry can generally save 50% of labor, each silkworm seed can save 8 10 sheets, saving 80% of silkworm equipment. The greenhouse can be comprehensively utilized, which can be used for vegetable production, seedling, production of edible fungi or poultry breeding in the winter off-season, and the greenhouse has a good effect on increasing the income of winter vegetables; The cost of sericulture greenhouse is low, play a role in saving costs and increasing efficiency, the direct cost of galvanized steel pipe greenhouse construction of 160 square meters is about 3,600 yuan, more than 20 yuan per square meter, generally used 5 times a year (silkworm raising, vegetables), can be reused for many years, which is conducive to demonstration and promotion.

<> on the basis of conventional indoor breeding technology, the following technical measures should be mastered: strict disinfection and disease prevention, it is best to sprinkle fresh lime every day after entering the shed, keep the silkworm frame dry, and do a good job of killing flies; When transplanting silkworms, sprinkle a layer of fresh lime on the ground, spread a layer of straw or a layer of film, and put the silkworms with the same degree of development together when transplanting silkworms, so as to manage them in the future, and the density of silkworm heads should be scarce.