-
The stages of silkworm life are from silkworm eggs to larvae, then from larva to silkworm pupae, and then from silkworm pupae to adults.
Silkworm (scientific name: bombyx mori) is a lepidopteran insect, the main raw material of silk**, which occupies an important position in the economic life and cultural history of mankind. Native to China, South China and Taiwan, commonly known as silkworm babies or mothers.
The silkworm is called "silkworm" (meaning "silkworm") because it uses silk to weave cocoons. The cocoon is woven from a single piece of silk 300-900 meters long. Nowadays, China's cocoon silk production and export volume account for more than 70% of the world's total, and has become a major cocoon silk country that can dominate the world's cocoon silk trend.
Ant silkworm: When the silkworm hatches from the silkworm egg, the color of the body is brown or black, very small, and many fine hairs, and it looks a bit like an ant, so it is called an ant silkworm. The antworm is about 2 mm long and about 2 mm wide, and after crawling out of the egg shell, it will eat mulberry leaves after 2 to 3 hours.
Silkworm babies eat a lot of mulberry, so they grow very quickly and their body color gradually fades. However, its appetite gradually decreases and even fasts completely, it spits out a small amount of silk, fixes its gastropods on the silkworm seat, raises its head and thorax, and no longer moves, as if it is asleep, which is called "sleep".
The sleeping silkworm seems to be stationary on the outside, but the body is preparing to shed its skin, and after taking off the old skin, the growth of the silkworm will enter a new instar stage, from the ant silkworm to the silkworm cocoon molting a total of 4 times. Sleeping is one of the growth characteristics of silkworms, and sleep is a genetic trait of silkworms, which is also affected by the environment. At present, the silkworms raised in China belong to the Hongmai Hui four-sleep variety.
-
1.Silkworms can live for a few days after becoming moths.
Silkworms are common silkworms in our lives, through which we can eat delicious broad beans and make exquisite silk. The life of silkworms goes through four stages: egg, larva, pupa and adult, and the adult is also known as a moth. For us, how many days can silkworms live after becoming moths is a very important question.
2.The life cycle of a silkworm.
The larval stage of silkworms varies from about 25-30 days, and after 4 molts, they become pupa, and the pupal stage is about 10-14 days, and then the pupal stage turns into moths. The first thing the moth does after birth is to find the opposite sex for mating, and after successful mating, the female moth parasitizes eggs on mulberry leaves, hatches wide Li Yin and becomes a larva, and starts the life cycle again.
3.The lifespan of silkworms after becoming moths.
The lifespan of silkworm moths is not particularly long, generally between 1-2 weeks, and the cautious feast does not exceed 20 days. This is mainly because the stomach and intestines completely degenerate after the silkworm becomes an adult, and cannot take in any nutrients, and rely on the nutrients stored in the larval stage to sustain life. Therefore, the moth should complete the work of reproduction and egg production as soon as possible.
4.Factors influencing the lifespan of silkworm moths.
The number of days that silkworms can live after becoming moths is also affected by many factors, mainly including indoor temperature, humidity, egg quality, feed, light, etc. If the temperature is too high or too low, it will reduce the lifespan of silkworms after they become moths. Too high or too low the nutrients of the feed will also affect the life expectancy.
In terms of light, prolonged periods of darkness can lead to a reduced lifespan of silkworms after they become moths.
5.How should we protect adult silkworm moths?
Adult silkworm moths are essential to our lives, therefore, we should treat them correctly as short-lived creatures. In the process of silkworm breeding, it is necessary to pay attention to controlling environmental conditions, such as adjusting indoor temperature and humidity, and reasonably matching feed to improve the quality of eggs. At the same time, care should also be taken not to excessively damage the life of the adult silkworm moth, and to prolong its life as much as possible.
6.The role of the adult silkworm moth in the ecosystem.
Adult silkworm moths also play a very important role in the ecosystem. They are an important group of insects that disturb mulberry trees, and play a role in pollen and pesticide. In addition, the silk industry is also one of the traditional industries in China, and silkworm production is of great significance to improve China's economy and culture.
7.Conclusion.
In short, although the life span of silkworms is not very long, it is of great significance in our life and economic development. We should try our best to protect the adult silkworm moth and increase its living time, and at the same time, we also need to vigorously develop the sericulture industry to promote the development of our country.
It's easy to give them money, but it's not so easy to get it back.
Man lives. In order to experience joys and sorrows, birth, old age, sickness and death, in order to realize their own ideals, pursuits, goals, desires and values. >>>More
Breastfeeding for 1 to 30 days! If you don't have breast milk, go to the pet store and buy dog milk powder to feed. >>>More
Don't bask in the sun.
Use some whitening skincare products. >>>More
You can apply for as many points as you want, as long as you have the following necessary conditions, you can get 5 points from elementary school to junior high school last year. >>>More