CATDOLL : CATDOLL: Do you know how to raise silkworms? Why? (Do you know how to raise silkworms? Why can't you raise them?)

1. How to raise silkworms?

Steps/Methods

1. Preliminary preparation: Prepare the silkworm room and silkworm tools after planting mulberry leaves; 7 days before raising silkworms, spray and disinfect with 1% strong chlorine, half a pound of liquid per square meter, and seal it for more than 24 hours after spraying. At the same time, the environment around the silkworm room should be sprayed and disinfected.

2. Mulberry leaves: When raising silkworms, it is important to note that the mulberry leaves should be fresh. Do not use mulberry leaves that have been stored for too long for feeding. Stale mulberry leaves can easily cause diseases in the silkworms.

3. Temperature: Silkworms are temperature-changing animals, and their adaptability range is 20-30℃. In the spring, silkworms often encounter low-temperature and humid climates, so the focus is on replenishing warmth and removing moisture. In the summer, silkworms encounter high-temperature and high-humidity climates, so the focus is on cooling and removing moisture, keeping the air in the silkworm room flowing, and removing stuffiness. In the autumn, if the weather is hot and dry, you need to replenish moisture indoors.

4. Accelerate the growth of silkworm eggs: About the eighth day after the silkworm eggs are taken out of the warehouse, you can see a small black dot at one end of the egg, which is called the green dot. If 20% of the eggs on a sheet of silkworm eggs have the green dot, use a black cloth to block the light. Counting from the day of the green dot, remove the black cloth at 5 o'clock in the morning on the third day and turn on the light for photosensitive incubation.

5. Disease prevention: Silkworms are prone to many diseases, so prevention is generally the main approach. After an illness occurs, special agents should be used for disinfection. At the same time, sick silkworms should not be thrown around randomly, as they are highly contagious.

6. Management: When feeding mulberry leaves, it is best to feed 2-3 times a day. Secondly, no incense is allowed in the breeding room, and mosquito coils, perfumes and other things with strong odors are not allowed to be placed in the breeding room to prevent the death of the silkworms.

7. Hygiene: When there is too much accumulation of silkworm feces, bacteria are very easy to breed and spread. Silkworm feces must be cleaned up in time, usually on the same day. In addition, the silkworm skins shed and the leftover mulberry leaves must be cleaned out in time.

2. How to raise silkworms?

1. Steps of silkworm rearing

(1) From silkworm ants to silkworm babies

Suitable temperature: 20-25℃.

Time: 2-3 days to hatch.

Collecting ants: The young silkworms will crawl out of the egg shell like ants. Use very light gestures to collect them and lead them to the tender leaves. Note: The silkworm eggs need to be kept in a ventilated and dark place during the incubation period.

(2) Feeding silkworms

The living habits of silkworms are: sleep when full, eat when awake;

Living environment: Plastic or wooden flat box,

Note: The mulberry leaves should be fresh. You can also collect them in a plastic bag each time, use a few leaves every day, and sprinkle some water on the rest and put them in the refrigerator to keep them fresh. The collected leaves will have some dust, so you can wash them and dry them. You must dry them, otherwise the young or adult silkworms will have diarrhea if they eat them.

(3) Silkworms spin silk and make cocoons

Molting: After molting once, the larvae become the second-instar larvae. Each time the larvae molts, they become one year older. They molt a total of four times.

Cocooning: 7-8 days after molting four times, the owl stops eating mulberry leaves, its body starts to shine, and it begins to look for a suitable place to start cocooning.

Note: Put some supporting objects in the silkworm box to help the silkworms make cocoons.

(4) About silkworm droppings

Silkworm feces, also known as silkworm sand, has the effects of curing dampness, itching, removing internal heat, removing rheumatism, and improving hearing and eyesight. Many elderly people dry it and make it into pillows for their newborn babies to sleep on. Silkworm feces, black particles, can be used as medicine in traditional Chinese medicine and are also good nutrients for plants.

(5) Silkworms break out of their cocoons

The silkworm sheds its skin for the final time (fifth time) in the cocoon and becomes a pupa. After about 7-10 days, the pupa turns into a silkworm moth and emerges from the cocoon.

Note: The fat one is the mother of the silkworm, and the thin one is the father of the silkworm. Let the father and mother of the silkworm live together, and you can see a lot of silkworm eggs the next day. If you protect them well, these silkworm eggs can hatch again in the spring of the next year.

3. How to raise silkworms?

1. Place the silkworm eggs in a box and wait for them to hatch. The most suitable temperature is 25℃-28℃. If the temperature is lower, you can cover the box with a lid.

2. Newly hatched silkworms must be cared for with special care and fed with relatively tender leaves.

3. When the silkworm is dormant, it does not eat or move. On the surface, it is sleeping, but in fact it is shedding its old skin and replacing it with a new one to continue growing. The silkworm will shed its skin 4 times during the whole breeding process. Each time it sheds its skin, it will not eat or move. At this time, try not to disturb it, and do not throw it away thinking it is sick. Each dormant period of the silkworm lasts about one day.

4. Generally, the silkworms start to spin cocoons around 25 days old. When the silkworms' backs are shiny, yellow and transparent, it means that they are about to spin silk and spin cocoons. At this time, a cross space should be provided for the silkworms to spin cocoons. It takes two days to spin a complete cocoon, and the silkworms complete the last molting in the cocoon and become pupae.

5. Male and female silkworm moths mate shortly after emerging from their cocoons. After mating, the female moth takes 4-5 hours to lay 400 eggs and then slowly dies.

4. How to raise silkworms?

Step/Method 1

Prepare a cardboard box of corresponding size according to the number of silkworms you raise, put A4 paper on the bottom of the box, and place a board on the box to prevent mice from eating the silkworms.

Step/Method 2

Put the silkworm eggs into a box, place the box in a place with suitable temperature, and sprinkle a little water in the box to increase the hatching rate.

Step/Method 3

Use scissors to cut the fresh mulberry leaves into pieces and feed them to the silkworms. Be sure to wipe the water off the selected mulberry leaves with a rag, otherwise the silkworms will get sick after eating them.

Step/Method 4

When the silkworms grow up and are about to spin silk, they will not like to eat much. At the same time, their feces will change from dark green to turquoise. You can put the silkworms that are about to spin silk in a box. Do not open the lid frequently and wait patiently for them to turn into silkworm pupae.

5. New technologies and methods for silkworm breeding?

1. Preparation

Before raising silkworms, be sure to prepare a clean, odor-free cardboard box, and then poke some small holes on the top of the box to facilitate ventilation.

2. Incubation

Place the silkworm eggs in a carton at a temperature of 21-29°C. The incubation time is generally about 11 days.

3. Feeding

(1) When the silkworms are about to hatch, put an appropriate amount of fresh mulberry leaves into the cardboard box for the silkworms to eat.

(2) When silkworms are in the young stage, they can be fed with fresh and tender mulberry leaves. When they are in the adult stage, they can be fed with ordinary mulberry leaves.

(3) Before feeding, be sure to check the mulberry leaves carefully to pick out diseased, moldy, and insect-infested leaves, and make sure there is no water on the leaves, otherwise the silkworms will easily suffer from diarrhea after eating them.

4. Cleaning

(1) The old mulberry leaves in the cartons must be removed regularly and replaced with fresh mulberry leaves. All silkworm feces in the cartons must be cleaned up.

(2) When changing mulberry leaves to clean the feces, you must use a brush. The silkworms on the old mulberry leaves can be gently swept onto the new mulberry leaves, and then the silkworm feces and old mulberry leaves in the cardboard box are cleaned, and finally the new mulberry leaves are put into the cardboard box.

(3) If there are dead silkworms in the carton, be sure to clean it up immediately to prevent other silkworms from being infected.

6. What is the correct way to raise silkworms?

1. The environmental conditions are suitable. Silkworms of different ages require different temperatures and humidity. Pay attention to ventilation.

2. The quality of mulberry leaves. The mulberry leaves eaten by silkworms at different stages are different. The smaller they are, the more tender they are; the older they are, the more mature and darker the mulberry leaves they eat.

3. Dispose of silkworm feces in a timely manner to avoid accumulation and the growth of microorganisms.

4. There must be no messy smells or pesticides in the silkworm breeding environment. One shot will kill! Sericulture is a professional course with many knowledge points. It is probably enough to deal with silkworm breeding under normal circumstances according to this condition.

7. What are the correct methods and techniques for raising silkworms?

1. Mulberry leaves should be picked, transported and stored properly. Try to pick leaves in the morning or evening, transport them as soon as they are picked, and pack them loosely for fast transportation. After the picked mulberry leaves are loosened, put them in the mulberry storage pool or mulberry storage room, and store them properly to prevent them from being blown away by the wind or piled up and heated and deteriorated, which will cause waste of mulberry leaves.

2. Prevent mulberry leaves from wilting. During the young silkworm stage, use a kang bed (room) and cover the mulberry leaves with plastic film to keep the temperature and moisture, so that the mulberry leaves remain fresh. During the adult silkworm stage, close the doors and windows appropriately after feeding the silkworms, and open the doors and windows for ventilation after the silkworms have eaten about 70% of the mulberry leaves, which can effectively prevent the mulberry leaves from wilting.

3. Ensure the temperature of the silkworm room. The suitable temperature for large and small silkworms is 24℃ and 25℃ respectively. Within the suitable temperature range, the silkworms have a strong appetite, which reduces the defective mulberry leaves and improves the leaf-silk conversion rate.

4. Promote less-return rearing and mulberry-strip rearing. Labor-saving silkworm rearing technologies such as flat three-dimensional rearing of small silkworms once a day, rearing of full-age silkworms twice, and rearing of large silkworms in mulberry strips not only improve the efficiency of silkworm rearing, but also help silkworms eat mulberry leaves, saving about 5% of mulberry leaves compared with ordinary rearing.

Additional information:

Summer and autumn silkworm breeding should pay attention to

1. Prevent pesticide poisoning. During the silkworm-raising season, do not spray organic pesticides such as dimethoate in the silkworm room and the fields near the mulberry fields, as the smell will cause poisoning to the silkworms; mulberry leaves should be fed to the silkworms only after they have been tested and confirmed to be non-toxic.

2. Mosquito-repellent incense or mosquito repellent or insecticide is prohibited in the silkworm room. If it is used in the house near the silkworm room, the doors and windows of the silkworm room should be closed to prevent the silkworms from being poisoned.

3. Screen doors and windows should be installed in the silkworm room to prevent flies from entering the room and harming the silkworms, and "silkworm fly killing" emulsion should be added or sprayed on the silkworm bodies to kill the maggots.