How to Raise Silkworm (Silkworm's Life)

Put it in a cardboard box or a small sieve for sieving rice. If you use a sieve, put some paper mats at the bottom of the sieve.

When a young silkworm has just hatched from an egg, it should be treated with special care. When feeding it with tender mulberry leaves, move it with a soft brush when changing mulberry leaves, and pay attention. Sometimes the mulberry leaves are too dry, and if you are not careful, you will leave the young silkworms on the mulberry leaves and discard them in the process of changing the mulberry leaves. It is difficult to raise when you are young, but it is easy to raise when you grow up.

When it wants to cocoon, it takes some straw and ties it to the branches.

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

Mulberry leaves should be fresh, or you can collect a plastic bag at a time, use a few pieces every day, sprinkle some water on the rest and keep them fresh in the refrigerator. The picked leaves will have a certain amount of dust, which can be washed or sun-dried, so they must be sun-dried, otherwise the young silkworm or the big silkworm will have diarrhea and may die. /question/7202755.html？ Si= 10 Mulberry leaves should be properly sorted and cut before feeding to facilitate mulberry feeding. The selection and elimination of bad leaves, the stacking of leaves, the cutting of whole leaves and buds, and the weighing of mulberries are all within the scope of mulberry adjustment. Some silkworm houses have rooms specially used for mulberry adjustment, called mulberry adjustment room, and the table for selecting leaves and cutting mulberry is called mulberry adjustment board. When ants are collected to the 3rd instar, silkworms are fed. Because silkworms are relatively small, in order to feed mulberries evenly and conveniently, mulberry leaves are generally cut into square leaves. The size of the square leaf adapts to the development of the silkworm body, and its side length is about 1.5~2 times of the length of the silkworm body. Change to rough cutting in the middle and late third instar. Left at the age of four. Five-year-old leaves and new tip leaves or mulberry trees. Mulberry feeding includes mulberry feeding quantity and mulberry feeding quantity. Feeding mulberry leaves is to feed silkworms with mulberry leaves, that is, to spread the prepared mulberry leaves evenly on the silkworm bed to feed silkworms. This is called feeding mulberry leaves, which is the basic operation of sericulture. Number of times to give mulberry, that is, 1d gives mulberry several times, 1d gives mulberry three times and gives mulberry four times. At present, 1d triple cropping or 1d quadruple cropping is widely used in production. The feeding amount of mulberry is generally determined by the calculation data of mulberry consumption and mulberry consumption rate and the practical experience of sericulture, and it is also related to the silkworm rearing area. On the premise that the sericulture area is relatively standard, the mulberry yield of 25,000 silkworms is 65438±0.5kg for the first instar, 4.75kg for the second instar, 65438±07.25kg for the third instar, 87.5kg for the fourth instar and 587.5kg for the fifth instar, with a total age of 698.5kg. The actual amount of mulberry used in the breeding box is between 600 and 700 Jin. Silkworm varieties and silkworm rearing seasons are different, and the amount of mulberry used is also quite different The amount of mulberry for spring ploughing is about 700kg, and the amount of mulberry for raising summer silkworms in summer and autumn is about 550 kg. The amount of mulberry used to raise early autumn silkworm varieties is about 500 kg; The amount of mulberry used to raise silkworm varieties in the middle and late autumn is about 540 kg. The amount of mulberry feeding depends on the silkworm variety, silkworm period, silkworm nest area, feeding form and other conditions, which is specifically quantified to age-by-age, day by day and return trip. In practice, quantitative mulberry or a combination of the two can be adopted to determine. Give mulberries for the last time before going to bed at all ages. For example, as far as individuals are concerned, it means that silkworms stop eating mulberry and go to sleep; But as far as groups are concerned, it is a matter of time before they go to sleep because of the subtle developmental differences between individuals. Therefore, in order to prevent hunger and sleep, the time to stop mulberry is also appropriate. Generally, when there are only a few late-sleeping silkworms in the silkworm seat, you can stop mulberry. In production, it is usually used to spread a layer of burnt bran or fresh lime powder evenly on the silkworm bed to achieve the purpose of stopping mulberry, so as to promote the drying of the silkworm bed and prevent a few early silkworms from eating withered residual mulberry. Silkworm nests and silkworm nests are places for growth and activities. Take silkworm plaque as a feeding container as an example. In the first and second stages, it is necessary to lay a layer of polyethylene plastic film in the plaque, then lay a white newspaper or gray newspaper, and then put silkworms on it to feed the mulberry. The laid area is the silkworm nest area. The area of silkworm seat should be adapted to the growth and development of silkworm, and adjusted and expanded. If the area is too small and the silkworm head is too dense, it is easy to cause insufficient and uneven feeding of mulberry, and the silkworm body is not strong and uneven; If the area is too large and the silkworm head is too thin, it will cause the consumption of silkworm equipment, mulberry leaves and silkworm room labor. Feeding density, synonymous with silkworm area, refers to the number of silkworms per unit area. At present, the nest area of 25,000 good eggs of L-shaped silkworm eggs after hatching and collecting ants is generally: 0.4-2m2 for L-shaped silkworm, 2-4m2 for 2-aged silkworm, 4- 10m2 for 3-aged silkworm, 10-20m2 for 4-aged silkworm and 20-35m2 for 5-aged silkworm. According to the requirements of collecting ants, feeding quantity and appropriate feeding density, ants and silkworms (sometimes referred to as silkworms of all ages) are placed in a certain silkworm colony. After the silkworm seat, due to improper crawling or mulberry feeding, the silkworm heads are unevenly distributed in the silkworm seat. It is necessary to move the silkworm head from the dense place to the sparse place with the help of silkworm chopsticks or directly by hand to ensure the uniformity of population development. Expanding the base and dividing boxes to adapt to the growth and development of silkworms and expand the area of silkworms in time is called expanding the base. If a silkworm plaque can't be put down, it needs to be moved to another empty plaque to feed, which is called a plaque. The young silkworm has a short period and a fast growth rate. The growth multiple of silkworm body area from the first instar is 5 times, the second instar is 4 times and the third instar is 3.5 times. The silkworm body area will increase by l times almost every 1.2 hours, and only 2-3 times will be given to mulberries every day. Special attention should be paid to expanding seats in advance. Silkworms of different ages enter the sleep period and the sleep period when they are about to fall asleep in batches after being fed less, middle, full and short. The sleeping area and the newly asleep silkworm have shortened body, swollen head and chest, milky yellow and shiny body color. The silkworm, which is still in the stage of eating mulberry, has a slender body and a blue body color. In the process of population development, when about half of the silkworms have fallen asleep or fallen asleep, and about half of them are still crawling to eat mulberry, in order to facilitate the technical treatment of the next age and ensure the common development of each batch of (spotted) silkworms, it is necessary to adopt the method of adding nets to eat mulberry, and replace the green heads that are still eating mulberry and put them in another silkworm spot, which is called Tiqing batch. When most individuals have fallen asleep and only a few silkworms are still wandering for food, they should be picked up, which is commonly known as picking up green heads or picking up late-sleeping silkworms in production habits. Late-sleeping silkworms, which are far from a large number of development progress, should be eliminated. Sleep treatment is the main technical link in the feeding process, including sleep treatment such as adding sleep nets, removing sleep and lifting green in batches. Stop mulberry, collect late-sleeping silkworms, and protect them during sleep; Silkworm treatment, such as spraying anti-stiff powder, screening and paying grain. At the beginning of the second, third, fourth and fifth instars, that is, after the older silkworm molts for the first time, it is customary to pay grain. Before paying grain, sprinkle a layer of anti-stiff powder and a layer of burnt bran on the silkworm bed, then cover it with a silkworm net and give it to the mulberry to eat, so as to prevent silkworm diseases and remove sand. On the premise that the population development is quite neat, it is only suitable for copulation when about 95% individuals have taken off their shells and their heads, commonly known as silkworm farmers' mouths, change from gray to light brown and then to dark brown. Eating too early is easy to damage the mouthparts of silkworms; If you pay for food too late, some early silkworms will starve to death. In large-scale production, when there is little difference in population development, the "isochronous" method is generally adopted, that is, all or most silkworms have been shelled and get up before giving mulberry food. The first time I gave it to mulberry at the beginning of five years old, it was also called sleeping leaves. Sand removal is to remove impurities such as residual mulberry, silkworm excrement and silkworm slough after molting, commonly known as silkworm excrement or mulberry sand. If the mulberry sand accumulates too much and too thick in the silkworm bed, it will cause steaming in the silkworm bed, emit bad gas, easily breed pathogenic microorganisms and infect silkworm diseases, so it is necessary to remove the mulberry sand in time and keep the silkworm bed clean and dry. According to the operation time, desanding can be divided into starting desanding, intermediate desanding and dormant desanding. The first sand removal after molting at each age is called starting sand removal; At the end of each era, silkworms will sleep. In order to keep the silkworm seat clean and dry when sleeping, sand removal before going to bed is called sleeping. Middle-aged desanding is called middle desanding. In order to reduce the damage and loss of silkworms, they usually sleep only once in the first year, once in the second year, once in the third year, once in the middle year and once in the third year. Once every other day or once a day at the age of four or five, feeding with mulberry strips can reduce the frequency of sand discharge or not. Sand removal method: before feeding mulberry, sprinkle burnt chaff on the silkworm bed (no need to sprinkle it when you are four or five years old), then cover it with a silkworm net, and then spread mulberry leaves evenly on the net. After feeding the mulberry once or twice, lift the net before feeding the mulberry next time to remove the mulberry sand under the net. Silkworm excrement, also known as silkworm excrement, is the excrement discharged after eating mulberries. It is dark green and granular, and its size increases with age. The first age is as small as fine sand, and the fifth age is as big as mung beans. When rearing 1 box of silkworm eggs (10g ant population, 25,000 silkworms), fresh silkworm excrement of 100-65438+50-55kg can be obtained at all ages, and it can be obtained after air drying. Composition of silkworm excrement; Crude protein accounts for 16.7%, crude fat accounts for 3.7%/ crude fiber accounts for 19%, soluble nitrogen-free substances account for 45%, and ash accounts for 15.6%. Silkworm excrement is rich in nutrition, which is an excellent fertilizer and an ideal feed for pigs, sheep and fish. Silkworm excrement is also rich in chlorophyll, vitamin E and K pectin, which is an economic raw material for extracting these chemicals. Silkworm dung is also used to make silkworm dung pillows, which is considered to have the effect of cooling and lowering blood pressure. Cold and humid silkworm rearing and lost silkworm nests, excessive mulberry feeding and untimely sand removal caused thick mulberry sand in silkworm nests, which led some individuals to stay in the mulberry sand to eat mulberry. This part of individuals is called supporting silkworm. If you are not careful when removing sand, you will dump some silkworms with the silkworm excrement. In production, the unexplained and unrecorded number of silkworm heads, that is, the number of individuals, is generally called silkworm loss.