CATDOLL : CATDOLL: Let me briefly introduce the process of silkworm rearing (what is the process of silkworm rearing like)

1. What is the whole process of silkworm rearing?

There are no mulberry leaves in Liaoning, so silkworms are raised mainly on oak leaves, which are called oak silkworms. In spring, silkworms emerge from their cocoons. After mating, they lay eggs, which become small silkworms after a period of time. Silkworm farmers put the small silkworms on oak trees, which is called releasing them into the wild. There must be someone to guard the release to prevent birds from eating the larvae. After more than ten days, the larvae have become mature silkworms. They become silkworms in about two months. When autumn comes, the silkworms spin silk and become pupae, and then enter the next stage of reincarnation.

2. What is the process of artificial mass silkworm rearing called?

The process of raising silkworms in large numbers is called the breeding process.

3. Write an essay introducing the process of sericulture and the habits of silkworms?

Raising silkworms is a job that requires carefulness and endurance. Silkworms start out as tiny black caterpillars. Every time you change the mulberry leaves for them, you have to gently twist them out with a small brush. When they shed their skin and become white silkworms, they are the cutest.

The silkworm may eat, it eats non-stop day and night, and when the fat and white silkworm girl sheds her skin again, it is time for it to spin silk. At this time, it stops eating and drinking until it turns into a pupa, and finally emerges from the pupa and becomes a moth to lay eggs, thus the life of the silkworm will come to an end.

4. What are the feeding stages of silkworm farming?

1. Temperature and humidity adjustment: 1-3 years old are called young silkworms, and they require a high temperature and high humidity environment. The suitable temperature for 1-2 years old is 26-27 degrees and the relative humidity is 90%; therefore, 1-2 years old silkworms are fully dry-reared, that is, covered with plastic film and padded with plastic film; 3 years old silkworms are semi-dry-reared, that is, only covered without plastic film, and the temperature is kept at 26-27 degrees and the relative humidity is 85%.

2. Leaves for young silkworms: For 1-year-old silkworms, use the 3rd leaf from the top bud of the mulberry tree. The leaf color is yellow with green. For one silkworm of silkworm larvae, 1 kg of leaves are used; for 2-year-old silkworms, use the 4th leaf from the top bud. The leaf color is green with yellow. For one silkworm of silkworm larvae, 3 kg of leaves are used; for 3-year-old silkworms, use the 5th to 6th leaves from the top bud. The leaf color is light green and shiny. For one silkworm of silkworm larvae, 10 to 12 kg of leaves are used. For 1st and 2nd instar silkworms, cut the mulberry leaves into small cubes 1.5 times the length of the silkworm body. For 3rd instar silkworms, cut the mulberry leaves into triangles for feeding. The amount of mulberry leaves fed each time should be appropriate, leaving a small amount of residual mulberry leaves on the silkworm seat before the next feeding.

3. Frequency and time of feeding mulberry: Feed 4 times a day, at 7 a.m., 11 a.m., 4 p.m., and 10 p.m. respectively. Young silkworms grow and develop quickly, so each feeding should be combined with expanding the seat.

4. Treatment before sleeping: (1) Desanding before sleeping: When the body color of young silkworms turns white, their bodies shorten, their bodies become tense and shiny, and part of the bodies of first-instar silkworms are covered with silkworm feces, and second- and third-instar silkworms are carrying silkworms, you can add nets to the mulberry trees to remove sand before sleeping. (2) Raising silkworms: If some silkworms have already fallen asleep and some have not, you should add nets to the mulberry trees again to lure up the silkworms that have not fallen asleep and move them to another winnowing basket to continue feeding until they fall asleep.

5. Protection during dormancy: In the early stage of dormancy, the silkworm seats should be dry. Lime powder should be sprinkled on the seats to maintain a relative humidity of 80%. When the silkworms begin to hatch, the room should be humid and the relative humidity should be maintained at 85%. If the humidity is not enough, water can be sprinkled on the ground to supplement moisture.

6. Feeding after waking up: When more than 95% of the sleeping silkworms have shed their skins, their heads have turned from grayish white to brown and have become noticeably larger. The young silkworms are crawling around looking for food. At this time, they can be fed. The mulberry leaves used as food should be slightly tender, and the amount of mulberry leaves given should be relatively small.

Silkworm breeding:

1. Rearing method: 4-5-year-old silkworms are in the adult stage, and the suitable growth temperature is 25 degrees. Silkworms have weak resistance to high temperature, humidity and carbon dioxide, eat a lot of mulberry leaves and excrete a lot. They can be raised on the ground indoors or on outdoor sheds.

2. Move the silkworms to the ground: Clean the silkworm room, disinfect it with 1% bleaching powder, and after it is dry, sprinkle a layer of lime powder on the ground. After feeding the silkworms a meal of leaves, move them to the ground for feeding.

3. Reasonable mulberry feeding: The 4th instar silkworm is the transition period from the growth of the silkworm body to the growth of the silk gland. If the silkworm is malnourished, it will affect the yield and quality. The mulberry leaves should be fresh and of good quality. Select 7-15 leaves under the top bud for feeding to achieve the purpose of good mulberry. The amount of mulberry used by the 5th instar silkworm accounts for about 85% of the total amount of mulberry. This period is the key period for reasonable use of mulberry and improving the efficiency of mulberry leaves. The feeding method of tight at both ends and loose in the middle is adopted: on the 1st to 2nd day or the 5th to 7th day of the 5th instar, the amount of leaves should be strictly controlled until the silkworms have just finished eating the mulberry leaves next time. On the 3rd to 6th day, the silkworms should be fully fed with good mulberry. Each time the silkworms are fed with leaves, the silkworms are moved and the seats are expanded to keep the silkworm heads even.

4. Keep the silkworm seats clean: Use fresh lime powder to disinfect the silkworm bodies and seats every morning during the growing period. On rainy days when the humidity is high, sprinkle lime powder twice a day to keep the room ventilated and dry.

5. Collecting cocoons on the cluster: After 6-7 days, the fifth-instar silkworms stop eating mulberry and excrete a lot of green soft feces. Their chests are transparent, their bodies are slightly soft and waxy yellow, and their heads swing left and right. At this time, select 3-4 square clusters and place them horizontally in alternating overlaps. Sprinkle the mature silkworms evenly on the clusters, and hang the clusters on hooks after the silkworms crawl. During the clustering period, good ventilation should be maintained, and the temperature in the cluster should be maintained at 24 degrees and the humidity at 85%. Generally, the cocoons can be collected and sold 6 days after the spring silkworms are on the clusters, and 4-5 days after the summer and autumn silkworms are on the clusters.

5. The whole process of silkworm breeding in Northeast China?

1. Hatching silkworm eggs

When raising silkworms, you need to obtain silkworm eggs that are round and black in color, wrap them in paper towels, and place them in a warm environment such as an electric blanket or pocket. The silkworm eggs will hatch after one day. At this time, you need to prepare a paper box, spread tender mulberry leaves on the bottom, and then put the young silkworms in it.

2. Provide food

Silkworms feed on mulberry leaves, so they should be provided with fresh mulberry leaves once a day and the leftover mulberry leaves from the previous day should be cleaned up. Silkworms do not drink water and get the required water from the leaves, so the mulberry leaves provided should be wiped dry in advance to avoid residual moisture, which will cause diarrhea and death of the silkworms.

3. Clean up regularly

Silkworms will constantly eat and excrete during their growth process. When breeding, their feces should be cleaned once a day to ensure a clean and hygienic environment. Silkworms have many natural enemies, and animals such as birds and ants will prey on them. Silkworms should be placed in a safe environment and the sealing of the container should be checked regularly.

4. Cocoon management

One month after hatching, the silkworms will enter the cocoon-making stage. At this time, the silkworms can spin silk and make cocoons in the corner of the paper box. However, if the number of silkworms is large, it is best to put bamboo strips or branches that have been removed of leaves and disinfected in the paper box to provide a place for the silkworms to make cocoons.

6. What is the best way to raise silkworms at home?

The most important things to do when raising silkworms in Yongting to help them grow: control the temperature well, feed them enough mulberry leaves, and prevent and treat diseases. These are all things to pay attention to.

7. What are the 8 growth stages of silkworms?

1. Incubation

The silkworms that have just hatched from eggs are called ant silkworms. They are covered with fine hairs, which will become less noticeable after about two days.

Silkworms live on mulberry leaves. After eating mulberry leaves continuously, their bodies turn white. After a period of time, they begin to shed their skin. 3. Silkworms do not eat or move when they sleep. On the surface, they are sleeping, but in fact, they are shedding their old skin and replacing it with a new one to continue growing. Silkworms shed their skin 4 times during the entire breeding process. Each time they shed their skin, they do not eat or move. At this time, try not to disturb them, and do not throw them away thinking they are sick. Each sleep period of silkworms lasts about one day. 3. Silkworms spin silk

4. After molting once, it is the second instar larva. Each molt is counted as one year older. It takes four molts in total to become the fifth instar larva before it starts spinning silk and making cocoons.

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. 6. It takes two days to form a complete cocoon, and the silkworms complete the last molting in the cocoon and become pupae. 7. Break out of the cocoon

After about ten days, the female moth emerges from its cocoon and becomes a silkworm moth. After emerging from its cocoon, the female moth emits a scent from its tail to attract the male moth to mate. After mating, the male dies. The female moth can lay about 500 eggs in one night and then slowly dies.