How to raise silkworms? What knowledge do you pay special attention to? ）

Level: Novice.

April 9 10:48 Put it in a cardboard box, or a small sieve for sieving rice, and put some paper pads on the bottom of the sieve if you use the sieve.

When the silkworm has just hatched from the egg, you should be especially careful with it, feed it with a relatively tender mulberry, and use a very soft brush to move it when changing mulberry leaves, and pay attention to the strength; Sometimes the mulberry leaves are too dry, and if you are not careful, you will leave the silkworms on the mulberry leaves to be discarded in the process of changing the mulberry. When you are young, it is difficult to raise a little, but it is easier to do when you grow up.

When it is about to form cocoons, take some wheat stalks and tie them into the shape of branches.

After breaking the cocoon, put them together in a box, they will mate together, and then lay eggs. Sometimes because there are few silkworms raised, the moths will be left alone when the cocoon is broken, but don't worry, as long as a pair of silkworms is successful, I believe it will be enough for you to raise.

Mulberry leaves should be fresh, you can also collect a plastic bag at a time, use several sheets a day in parts, and sprinkle the rest with some water in the refrigerator to keep them fresh. There will be a certain amount of dust on the picked leaves, which can be washed and dried, and must be cooled and dried, otherwise the small silkworm or the big silkworm will have diarrhea after eating, and maybe it will also braid.

It is necessary to change mulberry leaves in time and feed mulberry leaves more.

Disinfection, temperature, feeding.

Pay special attention when forming a cocoon.

I also raised it, and in the end it spit out a lot of silk (it's a round one), and it changed in it, and then it flew away.

1. You don't have to change it every day.

2. Hold it with a thing.

Put the silkworms in a clean and appropriate temperature environment, 1. Pay full attention to strengthening indoor ventilation and keep the indoor air fresh.

2. Clean up the excrement and residual mulberry of silkworms in time to keep silkworms have a clean environment.

3. Maintain a certain temperature indoors, especially in summer, the temperature of the silkworm body is higher than the air temperature, pay attention to the indoor temperature.

1. Prevention of pesticide poisoning. Do not spray insecticidal organic pesticides in the silkworm room and the farmland near the mulberry field during the silkworm season, its odor effect will cause silkworm poisoning, feeding silkworm mulberry leaves must be confirmed to be non-toxic after trial feeding, before picking leaves to feed silkworms;

2. It is forbidden to use mosquito coils or mosquito killers and insecticides in the silkworm room. When used in a house adjacent to the silkworm room, the doors and windows of the silkworm room should also be closed to prevent silkworm poisoning;

3. Screen doors and windows should be installed in the silkworm room to prevent flies from harming silkworms in the silkworm room, and add "silkworm flies" emulsion or spray silkworm body to kill flies and maggots;

4. Before raising silkworms, the mouse hole should be blocked, the silkworm frame should be kept at a certain distance from the wall, and lime powder or silkworm medicine should be sprinkled around the foot of the silkworm frame to prevent the rats from climbing. To raise silkworms, we must do a good job of drug extermination;

5. The temperature of silkworm raising in summer and autumn is high, so it is necessary to open doors and windows and strengthen indoor ventilation. Mulberry leaves are sprayed with water, and the indoor electric fan blows the breeze, which is also conducive to indoor cooling;

6. If the diseased silkworms are found, they should be cleaned up in time, put into a disinfection basin containing bleaching powder solution or lime slurry, and it is forbidden to feed the diseased silkworms to livestock and poultry to prevent the spread of pathogens and pollute the environment;

7. Silkworm sand contains a large number of pathogens, so it should not be spread around the silkworm room, but should be concentrated in the wild or put into the manure pit to prevent the spread of pathogens;

8. High temperature in summer and autumn, rapid reproduction of pathogens, pay attention to on-demand leaf picking, timely transportation of leaves, and reasonable storage of leaves. The mulberry storage pond should be disinfected once at each age, and mulberry leaves should not be fed overnight.

Silkworm raising needs a suitable temperature, generally spring silkworms, the temperature is basically controlled at about 20-25 degrees is the best time for silkworm raising, mulberry leaf picking, mulberry leaves should be fresh without dew, the best picking time is about nine o'clock in the morning, can not eat sprayed with pesticides mulberry leaves, silkworms are very sensitive to toxins. There is also the problem of hygiene, and the silkworm skin and silkworm feces are cleaned regularly every day to prevent the growth of bacteria. Don't put too many mulberry leaves at a time, you can feed them twice in the morning and evening.

Silkworms are particularly sensitive to fragrance, so they can't use perfume, mosquito coils, air purifiers, etc., and can't use any insecticides! Don't use it!

When rearing at the age of 4-5 years, the temperature of the silkworm needs to be 24-25 ° C, and the relative humidity should not exceed 80, which is controlled at an ideal level of 70-75, while at the 2-year-old silkworm stage, if this temperature and humidity are operated, then it is not normal. At this time, the temperature required for sericulture is suitable, kept in the range of 26-27 ° C, and the relative humidity does not exceed 85, of course, it is not lower than 80. In the spring silkworm or summer silkworm, sometimes the climate anomaly, such as the antelope encounters the "reverse spring cold", the outdoor temperature drops by ten degrees, and the temperature of the silkworm may be less than 20 °C, which is more different from the ideal, if not taken in time by the farmer, it will affect the normal growth of the silkworm.

Mulberry leaves are the best choice!

After receiving the silkworm seeds, place the silkworm seeds in the prepared silkworm box, which is generally an ordinary paper box, but ensure that the silkworm box is clean and odorless. From the date of delivery, the silkworm seeds will hatch naturally into silkworm ants in a room temperature environment with a temperature of 21-29 degrees Celsius, and will naturally hatch into silkworm ants for about 11 days (including the delivery time).

Silkworm ants have an appetite about 40 minutes after hatching, and the feeding process begins at this time. Take out the prepared fresh young mulberry leaves from the refrigerator, wait for the mulberry leaves to return to room temperature, cut them into small pieces with a knife and put them in the silkworm box, and the silkworm ants will automatically climb onto the mulberry leaves to eat. It generally takes about 27 days (divided into 5 instars) for silkworms to hatch and cocoon up the mountain from hatching to hatching.

The first to third instar silkworms should be fed with more tender mulberry leaves, and the fourth and fifth instar silkworms can use ordinary mulberry leaves.

Silkworms are suitable for growing in an environment with a temperature range of 22-29 degrees Celsius, and their optimal growth temperature is around 27 degrees Celsius. The mulberry leaves that a silkworm eats in its lifetime are about 25 grams. For example, if you feed 40 silkworms, you only need 1 kg of mulberry leaves.

But in the actual feeding process, there will be some mulberry leaves wasted, so that more mulberry leaves will be needed.

After the fifth instar, the silkworm should stop eating mulberry leaves and start looking for a suitable place to spin silk and form a cocoon (also called a mountain cocoon). In rural areas, grassy hills or pine branches made of straw are generally used as silkworm hills. Silkworms that are fed as pets can be replaced by a cardboard box divided into many small compartments.

Precautions for sericulture.

1. Mulberry leaves are fresh.

1. Place the mulberry leaves in the refrigerator (about 5 degrees Celsius) to prevent spoilage.

2. Tie the mouth of the plastic bag tightly to slow down the drying and dehydration time of mulberry leaves.

2. Feeding of silkworms.

1. Take out the mulberry leaves from the refrigerator and wait for a few minutes to restore the mulberry leaves to room temperature before feeding.

2. Do not wash mulberry leaves and keep them in a natural state.

3. For the feeding of second-instar silkworms, please choose tender mulberry leaves, 1-2 pieces per day.

4. The feeding time can be selected in the morning or noon.

3. Other precautions.

1. Don't catch silkworms with your hands, use the soft bristles of the brush to catch up;

2. Do a good job of cleaning the silkworm house every day;

3. The silkworm house should be placed in a cool place (about 25 degrees Celsius).

It's its favorite!

Be sure to pay attention to the hygiene of mulberry leaves, and do not spray or place any chemicals in the area where silkworms live. Silkworm raising must be careful.

Feed clean mulberry leaves every day, and wipe the water on the leaves dry, otherwise you will have diarrhea after eating. Clean up dried mulberry leaves and pulled out feces in a timely manner.

Less alarming silkworm babies. Keep out of reach of small children.

Silkworms have to go through four molts, and when they find that their bodies have turned yellow, they begin to stop eating or drinking, and are ready to form cocoons. At this point, you can put them in a clean box and let them find a place to form a cocoon on their own. After the cocoon is formed, it is waiting to pupate.

1. Mulberry leaves should be reasonably collected, transported and stored. Try to pick the leaves in the morning or evening, and transport them with the picking, and loosen them quickly. After the collected mulberry leaves are shaken and loosened, they are put into the mulberry storage pond or mulberry storage room, and stored reasonably to prevent the wind from blowing or accumulating heat and deterioration, resulting in the waste of mulberry leaves.

2. Prevent mulberry leaves from withering. In the young silkworm stage, kang bed (room) and plastic film are used to cover and breed, so as to facilitate heat preservation and moisturizing, so that mulberry leaves remain fresh. After feeding the silkworms during the silkworm period, the doors and windows should be closed appropriately, and about 70% of the mulberry leaves should be eaten away, and then the doors and windows should be opened for ventilation, which can effectively prevent the mulberry leaves from withering.

3. Ensure the temperature of the silkworm room. The suitable temperature of large and small silkworms is respectively, and within the suitable temperature range, the appetite is strong, the residual mulberry leaves are reduced, and the conversion rate of leaf filaments is improved.

4. Promote less return education and mulberry education. Labor-saving silkworm breeding technologies such as small silkworm plane three-dimensional one-day breeding, all-age two-time breeding, and large silkworm strip mulberry breeding not only improve the efficiency of silkworm raising, but also help silkworms eat mulberry, saving about 5% of mulberry leaves compared with ordinary breeding.

The layout of sericulture production refers to the number of silkworms raised in a year, the period in which each period of silkworms are raised, and the number of silkworms raised in each period. It is not only a business management issue, but also a complex technical issue. In addition to directly affecting the quality of silkworm cocoons, the rationality of the production layout of silkworm breeding also affects the growth of mulberry trees and the utilization rate of silkworm tools in the silkworm room, and ultimately affects the economic benefits of sericulture management.

The layout of sericulture production should be based on the climatic characteristics of each locality, the growth of mulberry trees, the conditions of sericulture equipment, the labor resources of sericulture, the level of sericulture technology and the local crop cultivation system. To raise several silkworms a year, one should consider how to improve the yield of mulberry leaves and the utilization rate of mulberry leaves, and proper picking of mulberry leaves can also promote the growth of mulberry trees. Second, it should be conducive to the regulation of silkworm rooms, silkworm tools, and labor.

China has a vast land, and there are great differences in the layout of sericulture production in various silkworm areas. In the silkworm area of the Yangtze River Basin, from late April to mid and late October, silkworms are raised 4 or 5 times a year. In the silkworm area of the Pearl River Basin, from March to November, silkworms can be raised 7 or 8 times a year.

In North China, from May to September, silkworms are raised 2 3 times a year.

The spring silkworm period has a suitable climate, mulberry leaves, few pathogens and low pathogenicity, and it is the best silkworm raising period of the year. Therefore, spring silkworms should be raised as much as possible to achieve full silkworm leaves. Generally, according to 650 700 kg of leaves for each silkworm seed, the number of silkworm seeds that can be raised can be estimated, and the feeding can be reasonably arranged.

Summer silkworms are mainly fed with thinning bud leaves after mulberry summer harvesting, and can also use part of the spring mulberry or spring silkworm remaining leaves. After the mulberry tree is cut down in summer, the drooping buds and leaves that are too dense and too thin and too weak are thinned in time, which is conducive to the ventilation of the mulberry garden, concentrates nutrients to promote the healthy growth of the buds and branches, and ensures the yield and quality of autumn leaves and spring leaves of the following year, that is, it is necessary to properly raise summer silkworms. Summer silkworms are generally arranged from late June to mid-July, and the number of breeding accounts for 25% to 30% of the spring silkworms, and the leaves are not more than 4 to 5 leaves at the base of the new shoots after summer felling.

The silkworm period in early autumn is from late July to late August, and the climate is hot, dry and changeable, which is the worst period of the year. Silkworms in early autumn mainly use the lower leaves of mulberry branches to feed, and proper leaf picking can promote the continuous growth of branches, which is conducive to improving the leaf quality of silkworms in the Mid-Autumn Festival, but excessive leaf picking will inhibit the normal growth of mulberry trees, affecting the feeding of silkworms in the Mid-Autumn Festival and the yield of leaves in the following spring. For this reason, early autumn silkworms should not be raised more, and the number of raised silkworms is about 40% 45% of spring silkworms.

The Mid-Autumn silkworm is the focus of the autumn silkworm, and the climate at this time is more suitable for the growth and development of silkworms and mulberry trees. Therefore, on the basis of doing a good job in estimating the yield of mulberry orchards, it is necessary to raise enough silkworm seeds to make full use of mulberry leaves. The feeding amount is generally 85% to 95% of the spring silkworms, and 7 or 8 leaves are left at the end of the branch tips after leaf picking.

The late autumn silkworm period is from late September to late October, and the amount of feeding is determined according to the number of remaining leaves after the Mid-Autumn Festival silkworm (that is, the late autumn silkworm is raised by looking at the leaves), which is generally 10% 15% of the spring silkworm. After leaf picking, the branches must leave at least 3 or 4 leaves, and do not "shave their heads" to maintain the normal progress of photosynthesis, so that the tree can accumulate enough nutrients to overwinter and maintain the tree's strength.

Silkworms are actually very good to raise, raising silkworms in summer is a good time, and it is the most difficult to raise in winter, because it needs more than 20 degrees of sunlight in summer to hatch, if the silkworm baby is sick, you don't need to ask a special veterinarian, you only need to disinfect his residence, and separate it from other silkworms and put it in a ventilated place, silkworms not only eat mulberry leaves, he also eats lettuce lettuce and grandma grass (grandma grass refers to dandelion leaves) to eat other leaves is not as good as eating mulberry leaves, silkworms are best placed in cartons, because cartons can absorb water, To dry his surroundings, you can put a piece of toilet paper under the carton and clean it up daily for feces and food scraps, and the unborn silkworm eggs are flattened oval grayish-purple. The silkworm eggs that are about to be born, the soft shell is close to transparent, and it will become larger and whiter than before, and you can see the appearance of the silkworm baby curled up inside. The eggs of the silkworm are whitish in color and have a hole in the short shell.

The baby silkworm is very weak after birth, and cannot be pinched by hand, otherwise it may die, if you want him to move the position, you can use a clean brush or feathers to gently help it.