Silkworm rearing diary

The day is coming to an end, and I believe everyone has gained something. It's time to keep a diary seriously. So what kind of diary is appropriate? The following are seven sericulture diaries I compiled for you. Welcome to reading. I hope you will like them.

Silkworm Diary 1 The silkworm baby my grandfather bought me last week grew up day by day and became white and fat. They are more interesting when they eat leaves. I put the mulberry leaves in, and they twisted their fat bodies and grabbed the mulberry leaves to eat. In a short time, the mulberry leaves were eaten up.

After a few days, the silkworm stopped eating mulberry leaves and looked for places to cocoon (ji m: n). I woke up the next day and found that the silkworm began to cocoon. The cocoon was still soft to the touch and the silkworm was still spinning in it! The cocoon slowly hardens and becomes a small white ball. Stranger still, I made a golden cocoon. Zhou Huiming * * * Qingcheng Yaobang Red Army Primary School, Dean County, Jiujiang City, Jiangxi Province

If you ask a child, "Why do you want to raise silkworms?" Eight out of ten will answer, "Cultivate patience and love!" Indeed, raising silkworms at home is to cultivate children's love and care. However, is it true that the more silkworms are raised, the greater the effect will be? The result is negative.

It seems that if there are more silkworms, children will work harder to raise them and increase the effect. However, after more than two years of my own experiments and summary, the result is not like this. Three years ago, I was a child of Grade Two, and I liked sericulture very much. My parents also supported me, and got me a lot of silkworm eggs, about 150! I can't tell you how excited and happy I am Silkworms hatch, and the black line covers a large area of the box. In the first few days, because the silkworm is still young, it is easier to manage. I carefully cut the leaves into thin strips and spread them on the silkworms. I have to be busy for half a day every time, but I am still very happy. Mom and dad found it quite effective and supported me to raise silkworms. They set aside time for me to manage silkworms every day.

However, with the growth of silkworms, food intake and excretion have doubled. In less than three days, the box was full of rubbish. If you are lazy again and again and don't want to clean up, the garbage will pile up higher and higher. Cleaning up garbage is easier said than done. Not only can it not hurt silkworms, but the pungent smell is unbearable. So my management is gradually neglected, and I do nothing but sprinkle two handfuls of mulberry leaves every day. Finally, because of my poor care, a smaller silkworm was crushed and ate moldy mulberry leaves, which led to collective diarrhea and more than 80 silkworms died. This didn't cultivate my patience and love at all, but wasted a lot of time.

But last year I only raised 15 silkworm babies. Although it was a little less this time, I took care of them from the beginning. Feed mulberry leaves every day and put them away for them to eat. Due to the reduced workload, I am diligent. I clean their hut every three days. When cleaning, don't forget to count the number of silkworms, see if there is a lot less, and hurry to find them. Finally, they produced 15 colorful cocoons, which made me feel gratified and cultivated my patience and love invisibly.

What does this mean? It is better to raise silkworms less seriously than to raise silkworms more carelessly. If this truth is translated into being a man, it is not to be greedy, but to move forward step by step and be down to earth. If you are too ambitious, it will often lead to the opposite result.

Do things seriously, don't expect more. Do a lot of rough useless work, it is better to do a few practical things honestly. This is the inspiration of sericulture.

Silkworm Diary Chapter III (1)

Ants and silkworms eat desperately and keep eating as if they were hungry. I wonder if they have bulimia. I was in a hurry, so I quickly asked my mother to know that it was not like this-silkworm babies ate mulberry leaves so hard to spin cocoons and reproduce the next generation. Ants and silkworms have a brown head with a small black spot on it-this is their mouth; A gray body covered with black spots; There is a sharp triangle at the tail. Once you shit, the triangle will bend, and the feces of the silkworm baby will come out of the triangle on the ass. There are six feet under the body of the ant silkworm, which are specially used to stick leaves. I watch them eat after school every day, which is very interesting!

(2)

After a few days, the young silkworm has become a third-instar silkworm, its body is shaking and swinging, and its fat is white. They eat a lot and have to be fed three or four times a day! Call it "Silkworm Dabao" now. There are some old skins taken off by silkworm Dabao under the leaves. I picked it up and pulled it. Very elastic! I also collected one as a souvenir.

(3)

After another week or so, "Silkworm Dabao" has begun to find a place to spin silk and cocoon. They first frame their bodies with silk, and then wrap themselves layer by layer. One day has passed, and the silk has completely wrapped up the "Silkworm Dabao", so thick that you can't see the figure of "Silkworm Dabao". I am very happy to see that the silkworm baby has cocooned. But one day, a little silkworm died after cocoon formation. I looked at the stinking cocoon and was extremely lost. I still don't know why it died. Who can answer my question?

Silkworm Diary 4 In the science class, the teacher gave each of us two young silkworms to take home and kept an observation diary. I looked at those two black bugs and couldn't believe that they would eventually spin cocoons.

We share the task of raising silkworms with our mother, and we have made great efforts to collect fresh mulberry leaves for them. Every day after school and work, we all rush to feed them. Although silkworms are small, they can eat well. In a blink of an eye, half a mulberry leaf disappeared, making a rustling rhythmic sound. Gradually, the young silkworm grows up day by day, and its body gradually turns white, thicker and longer. I found that there is a difference between two young silkworms, one is obviously smaller than the other. I was puzzled, so I asked my mother what was going on. My mother thought about it and said, "Maybe one is picky about food and the other is not picky about food." Finally, one day, this picky little silkworm died. Nature is like this, and those who are eliminated are the weak and helpless. There is only one baby silkworm left, and I am a little sad: "After the young silkworm spins and cocoons, it becomes a pupa and finally a moth. Two moths gave birth to new silkworm babies, but the moths will soon die. " I was depressed. My mother said softly, "Yes, silkworms, like any animal, can't escape the fate of death." Mother comforted me not to be sad. We can also raise two more silkworms and let them continue to breed.

Silkworms can eat more and more, feed them several times a day, and get fatter and fatter. I told my mother, look at its silkworm excrement. If it turns green, it will spin silk soon, and it will spin silk with its head held high all the time. My mother praised me for knowing more.

One day when I came home from school, I still went to see silkworms. Ah, it spun silk, just as people say, its head kept moving, and golden silk surrounded itself bit by bit. Dad said, "Don't disturb it, let it vomit slowly." When we watched it after dinner, an oval cocoon formed, and I vaguely saw silkworms spinning in it. I just understand why it can eat so much before it rotates. Just for this moment, it is constantly accumulating strength. The next day, a golden oval cocoon was made, and the silkworm waited quietly inside, first pupating and finally becoming a moth.

Last night, the moth finally broke out of its cocoon. It completed its mission with its snow-white body and snow-white fluff, which can also be said to be its life. This really fulfilled a human saying: "Spring silkworms must spin until they die". I had a strange dream at night, dreaming that I had a pair of beautiful wings flying around the garden!

Silkworm Diary May 5 1 1 Qing

Today, the science teacher asked us to take care of the silkworm baby, because we have to observe the silkworm baby in science class today. I brought my twenty cents. In science class, under the guidance of the teacher, we carefully observed the silkworm baby.

I was the first to observe. During the observation, I found that the silkworm baby is still very small, although it is much bigger than when I first got it. I estimate that its length is over 1 cm. I measured it carefully and found that its length was 1.5 cm. Its nose is black, its body is gray, its head is white, and there are some small black spots on its back and sides.

The teacher told me that there were some small black spots on both sides of my body. The teacher told us that it was a silkworm baby's valve.

Silkworm babies are very slow. It climbs its front body first, then climbs its rear body forward, and then moves forward. I put a piece of mulberry leaf in its room, and after a while, several pieces of mulberry leaf were eaten.

Finally, I reluctantly passed the silkworm baby on to the next classmate.

May 12 sunny

Today, the silkworm baby has grown to about 2.5 cm. But there is no obvious change between heavy hair and two hairs. They were the first to turn white. Sanmao and Simao shed their skins. Now they change their leaves twice a day, and I often clean their rooms.

Sericulture Diary 6 20xx March 7th: Dad photographed 200 silkworm eggs and a mulberry seedling on Taobao, saying that he would go to raise silkworms. I am very happy.

March 9th, 20xx: The bought silkworm eggs and mulberry seedlings have arrived. Silkworm eggs are black and small, not as big as a rapeseed. Mulberry saplings are also very small, and only a few brown buds are exposed on the bare branches. Dad planted mulberry seedlings in flowerpots, saying that when mulberry seedlings grow new buds, silkworm babies can be hatched.

March 20xx 15: I went to see if there were any changes in silkworm eggs and mulberry seedlings. Nothing. I asked my father, "When will the silkworm babies hatch?" Dad said, "When the weather is warm, the mulberry seedlings will sprout. Please be patient! "

March 25th, 20xx: I found that mulberry seedlings began to sprout a little green shoots. Please tell dad quickly and let him hatch the silkworm baby. Dad looked at the mulberry tree and said, "It has just sprouted, and it will not hatch until the mulberry bud grows obviously!" " Besides, the temperature is still relatively low these two days, and it will probably hatch in Tomb-Sweeping Day. "I wish Tomb-Sweeping Day would come quickly, the weather would warm up quickly, mulberry bud would grow up quickly, and the silkworm baby would come out quickly.

April 4th, 20xx: Tomb-Sweeping Day finally arrived. I urged my father to hatch the silkworm baby quickly. Dad said that the temperature is still relatively low these two days, so we should wrap the silkworm baby in soft paper and put it in a close-fitting pocket to keep warm. So my father and I shared one, wrapped the silkworm eggs in toilet paper and put them in close-fitting pockets, waiting excitedly for the silkworm babies to hatch. Environmental slogan

April 8, 20xx: These days, my father and I put the silkworm eggs in our personal pockets for a period of time, so we took them out and put them in a small box for fear of boredom. The silkworm eggs turn black day by day. Slowly, through the eggshell, you can see the black body of the silkworm baby. But I still haven't seen the baby hatch. Every time I ask my father, he always says, "Soon, soon, just these days."

20xx April 10: This morning, when I was sleeping soundly, I was awakened by my father's shouts: "Chuchu, get up quickly, the first silkworm baby was born!" I quickly got dressed and ran to the balcony. Sure enough, I saw a silkworm baby. It just came out, dark and small, and its body is only about 2 mm long, like a small ant. Dad said that the newborn silkworm is called "ant silkworm". My father and I went to the balcony to pick the buds of mulberry leaves and swept the silkworm baby onto the mulberry leaves with a soft brush. Soon, the silkworm baby began to eat mulberry leaves, and soon a small eye was chewed out on the mulberry leaves. After returning home at noon, three silkworm babies hatched. At night, one * * * had seven silkworm babies.

20xx April 1 1: Today, a large number of silkworm babies hatch, leaving many transparent eggshells on the paper, and each eggshell has a round hole. I really admire these little guys, so small, how did they have the strength to bite through the hard eggshell? Because the mulberry trees at home are very small, only a few small buds grow, so my father and I go to the wild to pick mulberry leaves for silkworm babies to eat. There are more and more silkworms, and many of them are mulberry leaves. It's really lively! Although every silkworm baby is very small, so many silkworm babies eat mulberry leaves badly, and a piece of mulberry leaves is quickly eaten with many small eyes and turned into a mulberry net. After eating mulberry leaves, their silkworm excrement is as black and dry as fine sand. Dad said it was called silkworm excrement. Emotional vocabulary

On April 20xx 12, the silkworm babies who ate mulberry leaves for two days have grown to 4 or 5 mm, almost as big as the two at birth. The head is shiny black, the body near the head (father said it was the silkworm's chest) turned white, and the body behind it (father said it was the abdomen) was lighter than the original color. Eating mulberry leaves is much faster.

April 20xx 14: Silkworm babies bring a lot of happiness to our family. Everyone likes these silkworm babies very much. Everyone should go to see them and pick mulberry leaves for them. Especially my mother, every day after work, she picks mulberry leaves from the roadside and brings them back. She also carefully cut them into small pieces for the silkworm babies to eat. Under the careful care of the whole family, the young silkworm grows faster and faster, grows bigger and lighter, and eats mulberry leaves more and more fiercely.

20xx April 15: Today, I found that many silkworm babies have become bright and arrogant. Are they sick? I quickly told my father. Dad said, "Silkworm babies are resting and molting. Because the body of the silkworm baby grows up, but their original skin no longer grows up, so the silkworm baby must shed its old skin if it wants to continue to grow. After molting, the silkworm baby will grow to one year old. " I am very happy to hear the news. It turns out that the silkworm baby is going to grow up.

20xx April 17: I don't know when the silkworm baby has taken off her old black clothes and put on new gray clothes, and her body is much bigger. We began to feed the silkworm babies with large pieces of mulberry leaves. They eat mulberry leaves much faster than before, and they eat holes. Silkworm dung is bigger than before, and it is still black and dry. Dad will clean up stale mulberry leaves and silkworm excrement in a few days and keep them clean.

20xx April 20th: Silkworm babies are much bigger than before. Their chests began to glow again, and they stopped eating mulberry leaves and held their heads high. This time, I didn't worry. Knowing that they were going to molt again, we stopped feeding them mulberry leaves and let them rest quietly on the silkworm bed.

20xx April 2 1: Silkworm babies start molting for the second time. This time, I paid attention to the observation and finally found the process of molting the silkworm baby. Before molting, silkworm babies will spit out some silk to fix their abdominal feet on mulberry leaves. After resting, its head appears brown inverted triangle and its body becomes shorter. It began to shed its skin. It shook its body desperately, then stretched itself hard, crushing the skin of its head and revealing its flesh-colored head. The color of the new head is much lighter than the original one, and the old scalp is still on my lips. After the head is exposed, the silkworm continues to push hard, desperately climbs forward, shrinks for a while, and takes off its old skin for a while. After about a minute, the silkworm's tail finally emerged from the old skin, and the original skin remained on the mulberry leaves. After a while, the black scalp hanging on the mouth also fell off. The newly molted silkworm has a big head and wrinkled body, like a little old man. Maybe I'm too tired to shed my skin. It needs a rest, so it doesn't move on the mulberry leaves. After 20 minutes, the molting silkworm began to eat the fresh mulberry leaves we prepared for it.

April 26th, 20xx: Most silkworm babies molt for the third time and grow to 4 years old.

April 27th, 20xx: Now you can observe every part of the silkworm baby very clearly. Under the introduction of my father, I learned that silkworms can be divided into three parts: head, chest and abdomen. Compared with the body, the head is small, hard and shiny. It used to be black, but now it is light brown. If you look carefully, you can see that their mouths are in front of their heads. The body outside the head is divided into 13 segments, the first to the third segment is the chest, and the back 10 segment belongs to the abdomen. The chest is the largest, and there are a pair of patterns like eyes on the top of the first section, so I often regard this part as my head and the real head as my mouth. There are three feet under the chest (dad said they were called chest feet). There are a pair of bracket-like brown patterns on the back of the fifth and eighth verses, which look like four small eyes on the back. There are a pair of feet (abdominal feet) under the sixth, seventh, eighth and ninth sections, which are a little bigger than the feet in the chest. In this way, the silkworm baby has seven pairs of feet, three pairs of feet in the chest are mainly used to catch mulberry leaves, and four pairs of feet in the abdomen are used to crawl and fix. There is an upturned tail in the eleventh section, which is very cute. The last paragraph is divided into two pieces, and the mulberry leaves are very firm and cannot be pulled down. Dad said, this can also be called foot, or tail foot. There is a black dot on both sides of each part. Dad said it was a silkworm's stomata, which was used for breathing, just like a human nose. You can also see that there is a transparent line under the skin of the silkworm back, which is wide and narrow for a while. Father said that it is the blood vessel of silkworm, which transports nutrition. At this time, the silkworm baby is cute and white and fat. I often have to touch them with my hands. They feel fleshy and comfortable. Silkworms eat mulberry leaves differently than before. Mulberry leaves used to be eaten into small holes, but now they are eaten quickly from top to bottom along the edge of mulberry leaves. They soon ate up a piece of mulberry leaves, even small veins, and they could still hear rustling when eating, and the silkworm excrement was bigger than before.

May 4th, 20xx: The baby silkworm has grown to six or seven centimeters, so it is not good to eat mulberry leaves. The mulberry leaves that Dad brought back from school were not enough to eat, so our family mobilized to pick mulberry leaves together. Every day, after work, my mother goes to the roadside to pick mulberry leaves; When I come home from school, I pick mulberry leaves in the garden of the community; Dad picked mulberry leaves from the school playground; Grandpa used his spare time to pick mulberry leaves; Grandma takes a walk to pick mulberry leaves ... Everyone has developed a habit: walk on the road, look around and pay attention to whether there are mulberry trees around. Mulberry leaves should be changed five or six times a day, once in the morning, once at noon, once before dinner, once before bed, sometimes once or twice in the middle, and even at night, mom and dad have to get up and change mulberry leaves. Under the careful care of our family, the silkworm babies are eating, growing and changing every day. They are fat in vain and really cute.

May 8, 20xx: At noon today, I found a silkworm baby's body became transparent, crawling around on mulberry leaves and not eating mulberry leaves. Dad said, "This silkworm is going to spin cocoons." We packed it in a paper box that had already been prepared. It crawled around in the carton, finally stopped in a corner and began to spin silk. I carefully observed the silkworm baby spinning silk and saw that it fixed a silk in one place, circled it and stuck it to itself. This is repeated several times in a row. When I came back from school in the afternoon, I found that the silkworm baby had been surrounded by some silk. Through the silk, I could see that the silkworm baby was working hard.

May 9th, 20xx: When I woke up this morning, I could see that the silkworms were still spinning. Some silkworms are spinning again. We put them in big cartons separated by cardboard, and put a silkworm in each carton. But I found that they were very disobedient. They always liked to crawl around, some climbed outside the box, and some crowded into a grid.

20xx May 10: A large number of silkworm babies began to spin silk and form cocoons. There were not enough boxes, so we put some silkworms in a bamboo screen and put some mulberry branches on it to make them cocoon. The earliest cocoons have thickened and hardened, and the silkworm babies inside can no longer be seen. Yesterday's cocoon was basically formed.

20xx May 1 1: Today, my mother brought back dozens of small paper boxes from the hospital. Let's try to make silkworms cocoon in the box. We put a silkworm in each box and found that the silkworm babies like this arrangement very much. They soon began to cocoon in the box. We also try to make cocoons in nightstands, milk boxes, barbed wire, bamboo baskets and other places. Haha, the silkworm is very satisfied with the place we arranged and began to cocoon.

At night, dozens of cocoons have been formed. Looking at the white cocoon, the whole family is very happy, which is the result of our labor this month.

20xx May 18: Dad cut a cocoon, and the silkworm inside has become a pupa. Silkworm pupa is brown, much shorter than the original silkworm. I asked my father, "Is the silkworm baby dead?" Dad said, "no, touch it!" " "I touched it with my hand and the abdomen of the silkworm chrysalis moved, which scared me. Later, my father fed the silkworm chrysalis to the tortoise, which made me cry sadly. What a cruel father! Silkworm is life! I even hate my turtle.

20xx May 22nd: Dad said that silkworm chrysalis will soon become silkworm moths. If so many silkworm moths come out and crawl around the house, it would be terrible. He decided to use most of the cocoons for reeling and leave a few cocoons for silkworm moths to lay eggs. Although I hate to abandon these little lives, it makes sense to listen to my father and I have to agree to diaosi. Actually, I also want to see how to get rid of silk. Dad put the cocoon in a stainless steel basin, filled it with water, and then cooked it on an induction cooker, so these silkworm babies were boiled alive. After cooking for a few minutes, my father stirred the cocoon in the basin with chopsticks, which were wrapped with a lot of silk. My father picked up the silk ends and wound them around the hanger. Silk is constantly pulled out of the cocoon in the boiling water basin. Dad is too busy to be alone, and grandparents and mothers also come to help. Dad pulled the silk out of the cocoon, and grandpa wrapped it in a hanger. The silk seemed endless and lasted for a long time. After about half an hour's work, dozens of cocoons in the basin are almost used up, and they are wound into a big roll in vain. Grandpa collects silkworm chrysalis and says it is used for fishing. Silkworm pupa is a kind of high protein food, which fish like very much.

20xx May 25th: I woke up this morning and found a brown liquid at one end of a cocoon, which softened the silk. After a while, a silkworm moth bit through the cocoon and got out of it. It is hairy all over, with a pair of tentacles like feathers on its head, a pair of wrinkled wings on its chest, three feet below, and a big belly, which is completely different from the original silkworm and ugly.

I picked up the rest of the cocoon and found that there was a silkworm chrysalis inside. Dad said it was a double cocoon, which was made by two silkworms. No wonder this cocoon is bigger than other cocoons. There are two silkworms in it!

20xx May 27th: The pupae in the remaining ten cocoons have all turned into moths, and there are 1 1 moths. There are five big bellies and six small bellies. Dad said: "The big belly is a female moth, and the small belly is a male moth. We put the silkworm on a soft piece of paper, and the silkworm flapped its wings to find friends. After finding them, their tails were connected. All five pairs of silkworm moths found friends, leaving a male silkworm moth to run around alone.

20xx May 28th: Silkworm moth lays eggs. Silkworm eggs the size of rapeseed, yellow, are walking on paper.

20xx May 29th: I woke up this morning and yesterday's silkworm eggs turned brown.

Through more than a month's experience in sericulture, although it is a little hard, it is more the happiness brought by silkworm babies. I also have a deeper understanding of silkworm babies. Although the life of the silkworm baby is short, it leaves us silk, so that we can weave beautiful silk.

My neighbor's aunt gave me a box of silkworm babies. They are small, soft and a little black, like little caterpillars. Let me count, ah! There are forty-eight, and I am very happy!

Silkworm babies like to eat mulberry leaves. In the morning, my mother and I went to pick mulberry leaves and feed them to silkworm babies. The young silkworm may have eaten it. Its small mouth always likes to bite on mulberry leaves and keep eating. But at night, I found that they don't eat mulberry leaves. Some of them lay motionless on the mulberry leaves, while others kept twisting. I am in a hurry. I don't know what happened to them. Is it dead? Mom said don't worry, take a closer look and see what's wrong with them. I stared at them carefully and they wriggled. After a while, they took off their clothes. They became bigger and whiter, and the silkworm babies who took off their old clothes began to eat mulberry leaves again. I am finally relieved. It turns out that they are molting and growing.

I like silkworm babies.