Diary of scientific sericulture observation1It will be fine on Thursday, April 25th.
The science teacher gave me some silkworm babies, and I was so happy! I immediately bought some mulberry leaves for the silkworm baby, and it was lovely to watch them eat with relish!
The weather will be fine on Friday, May 2nd.
When I opened the lid to see the silkworm, I found that the baby silkworm was motionless and began to turn yellow all over. I thought the silkworm baby was going to die. Just when I was sad, this little guy was "at a loss" and they began to devour mulberry leaves as if to say, "Hungry, hungry." It turns out that it takes a while for silkworms to molt, and I just breathed a long sigh of relief. Oh! I see. I thought it was dying. Silkworm babies run under mulberry leaves for a while and climb on their companions for a while. How active!
It will be sunny on Monday, May 25th.
I went to see silkworms again today, and found that several silkworms had disappeared, leaving only a few white spindle-shaped balls. This is the cocoon of the silkworm, where the silkworm slowly turns into a pupa, which is khaki. If you want bread, silkworms will sleep here for more than ten days.
It will be cloudy on Tuesday, June 3rd.
Today, the little silkworm poked its head out and looked around, turning into a moth. They mated and laid more than 400 eggs, which were flat and black, like sesame seeds. Before long, new life appeared. They are called "ant silkworms". Like ants, they are so cute!
Silkworm rearing is really interesting! I want to raise silkworms again.
Diary of Scientific Silkworm Breeding Observation 2 Day 1
Today, I bought five silkworms from the stall at the door, and I observed them.
These silkworms have six black stripes. It is about 1 cm long and has twelve small feet. The whole body is yellow and white, and the walking skills are not very good. I thought they were crawling if I didn't look carefully! Because it belongs to the larval stage, it is very slow to eat mulberry leaves, and it has not been finished for about an hour.
the next day
Now, they have grown up a lot. The body changed from yellow white to pure white, and the body length increased from 1 cm to 3 cm. And I found that a silkworm has a cocoon, and the cocoon is still golden yellow, which makes me ecstatic.
the third day
Today, they all break out of their cocoons and become silkworm moths. Silkworm moths are white and have gray wings, but they can't fly. Besides, they began to lay eggs. Their eggs are yellow, sesame-sized, and a little concave in the middle.
Silkworm rearing is really interesting and fun!
Observation diary of scientific sericulture 3 In the spring, my cousin gave me three silkworm eggs, like three black sesame seeds. I took them home with great interest and put them in a cardboard box without a lid.
A few days later, the silkworm baby was born. It is small and black, like three little ants. We call it "ant silkworm" because its fluff is thin and short. I took a piece of green mulberry leaf and put it in the box. They climbed onto the mulberry leaves and munched. After two or three days, the silkworm baby will not move! I thought it was dead, so I ran to my room. "Is the silkworm dead?" I asked nervously. Mother not only said slowly, "Silkworms don't eat when they shed their skins." The next day, the young silkworm turned gray, much bigger than before, and its food intake increased. After four molts, the silkworm becomes white and fat, with a brown mouth, small eyes, pores on both sides of its body and seven pairs of short feet! Cute!
After a few days, the silkworm's body gradually turned pale yellow, and it stopped eating mulberry leaves. It began to spin silk and wrapped itself in a cocoon. Silkworms become pupae. About half a month later, the pupa became a moth, and the moth died after laying eggs.
Beautiful silk fabrics are all silk fabrics spun by silkworms, and silkworms have devoted their whole lives to human beings.
Observation Diary of Scientific Silkworm Raising 4 20xx April 5th Friday Sunny
Today, my good friend gave me some silkworm eggs, and I couldn't wait to open the newspaper as soon as I got home. It was covered with small black spots, and some of them crawled around in the newspaper. It turns out that this is an ant silkworm that broke its egg. My father and I hurried to the campus to pick some mulberry leaves, then found a clean paper box, spread the mulberry leaves out, and gently brushed the silkworms onto the mulberry leaves with a small brush. Silkworm babies may be hungry, and in a short time, many small holes appear on mulberry leaves.
20xx It will be cloudy on Thursday, April 25th.
As time goes on, the silkworm grows up, its skin turns from black to white, and its body grows stronger. Some silkworms have grown to 5 cm long. Their food intake is increasing. I put mulberry leaves several times a day and often clean their feces. A few days later, I found that some silkworms began to shed their skins. It is said that every time a silkworm sheds its skin, it means that it is one year old.
20xx Heavy rain on Saturday, April 27th
When I came home from school at noon, I went to add mulberry leaves to silkworms as usual. As a result, I found that the silkworm released in the morning hardly ate it. They look lazy, some hide under mulberry leaves, some lie on the edge of the box, and some crawl on the corner of the box. I quickly asked my father, "Spring silkworms look strange today. Are you sick? " Dad said, "Silkworms may spin cocoons and hardly eat at this time." In the afternoon, we observed that the silkworms were really cocooned, and some of them were wrapped in a layer of white gauze, and we could vaguely see that they were spinning inside. Soon, the box was full of cocoons.
20xx may 1 Sunday sunny Wednesday
A few days later, nothing happened in the cocoon. Today, I went to observe again and found that some cocoons had holes and broke out several moths. They beat their wings from time to time and chase each other. Mother said, "Silkworm is going to have a baby." I quickly found a big newspaper and gently rushed the silkworm moth to it. The next day, the newspaper was full of silkworm eggs, and then the silkworm moths died one after another, ending their short and brilliant lives.
A few days ago, Li Zhuokai sent us some silkworm babies for us to observe and raise. Yesterday, I took Baby Silkworm home and found that Baby Silkworm ate all the mulberry leaves under it in half an hour. What a glutton! I immediately opened the refrigerator and took out the mulberry leaves my grandmother picked for me at Agricultural University earlier to feed it. Grandpa saw it and stopped me and said, "Ningning, you can't give silkworm babies mulberry leaves when it's cold, because it must be cold when you take them out of the refrigerator." Silkworm babies will have diarrhea if they don't adapt. If it is sick, please leave it at room temperature for half an hour before giving it to the silkworm baby. " I nodded, thinking that grandpa was right. Why didn't I think of it when I hated myself? "He also said to the silkworm baby," Don't be impatient, silkworm baby. It's not that I won't give it to you. It's really because mulberry leaves are too cold, and you will get sick after eating them. It's hard to be sick, and you may have to hang salt water. Wait a minute, don't worry! "In this way, I talked to myself with the silkworm baby while doing my homework, and it was finished in a short time. I looked at the time and thought that the mulberry leaves should be warmer, so I immediately picked up the mulberry leaves and walked to the baby mulberry. When I gently put down the mulberry leaves, the silkworm babies seemed to know that there was something to eat, and they all looked up and waited for it. How cute!
The next morning, I found that the silkworm baby suddenly grew up a lot after not seeing it overnight, so I asked my grandfather, "Grandpa, does the silkworm baby have teeth?" "Of course, but we can't see it." Grandpa said with a smile. At this moment, I found a youngest silkworm baby looking up at me lazily. I was thinking, it must want to say to me, "thank you, little master." I'm so full. I am so sleepy now. I'm going to sleep. Goodbye! " Laugh at me if you think about it.
It turns out that raising silkworm babies is such an interesting thing. It can not only help me learn knowledge, but also help me learn how to take care of small animals! Looking forward to the day when my silkworm baby grows up and transforms!
Diary of scientific sericulture observation 6 My silkworm baby is the most distinctive. Silkworm didn't have any characteristics when it first came to my house, but it was different later.
Silkworm babies molt once, each with its own characteristics. I named two silkworms: one is white, so I call it "Xiaobai"; The end of the silkworm's tail is black, so I call it "black tail tip"
Tell the story of these two silkworms first. My little white often hides alone with a silkworm, away from other striped silkworms. I want it to be a good partner with the colored silkworm. From then on, as soon as I saw Xiaobai away from the colored silkworm, I picked it up with chopsticks. A few days later, it finally ran to the colorful silkworm group by itself.
Silkworm babies like to play an entertainment project, that is, "stacking music", and they will be stacked one by one on the silkworm babies below. This kind of entertainment is often used to bully weak silkworms.
I think these silkworms eat the most in the world. Now my silkworm eats five or six pieces of mulberry leaves every day, and the more it eats, the fatter it gets. My mother said it was going to cocoon.
I believe my silkworm is the cutest!
My good friend gave me some silkworm eggs. I put them in a box. After about a week, the black bug crawled out.
My mother found mulberry leaves for them to eat and listened to them. When they eat mulberry leaves, they make a rustling sound. It's delicious! After a few days, they grew up slowly, becoming longer, fatter and whiter. The chubby body feels soft and cool.
I was afraid of them at first. My mother told me that they are comfortable and don't bite. They are very docile bugs. Slowly, I like them more and more. I change mulberry leaves and clean my stool every day.
After many days, their chubby bodies become a little transparent, there will be some silks around them, and their stools are green. My mother said that silkworms are going to spin silk. Mother brought them some boxes and made many small squares with cardboard, so that each of them had a "small room" to spin silk.
They spit out thin white silk and wrap themselves in it, turning into an oval white cocoon. I counted 43, a lot!
I heard that they would turn into moths inside, so my mother put them in a big box, covered them with white paper and put them on the cabinet on the balcony. One day, my mother told me that some moths flew out. Their bodies are white, but not snow-white. If you touch them with your hands, some powder will stick to your hands. Some of them have laid eggs, which are a little yellow and small, like millet. By next year, they will become silkworm babies again.