My silkworms haven t come out yet, it s been a week, why?

It may be because the temperature and other conditions do not meet the requirements, and the preparation work before incubation includes:

Prepare a small box first, put the eggs in it at a temperature between 22 and 25 degrees, make a few more holes in the box, sprinkle a little water regularly, but not too much, it will die. When you see that the eggs are getting darker and darker, it means that the ants and silkworms are about to hatch. After receiving the silkworm seeds, place the silkworm seeds in the prepared silkworm box, which is generally an ordinary paper box, but ensure that the silkworm box is clean and odorless.

From the date of delivery, the silkworm seeds will hatch naturally into silkworm ants in a room temperature environment with a temperature of 21-29 degrees Celsius, and will naturally hatch into silkworm ants for about 11 days (including the delivery time). Silkworm ants have an appetite about 40 minutes after hatching, and the feeding process begins at this time. Take out the prepared fresh young mulberry leaves from the refrigerator, wait for the mulberry leaves to return to room temperature, cut them into small pieces with a knife and put them in the silkworm box, and the silkworm ants will automatically climb onto the mulberry leaves to eat.

It generally takes about 27 days (divided into 5 instars) for silkworms to hatch and cocoon up the mountain from hatching to hatching. The first to third instar silkworms should be fed with more tender mulberry leaves, and the fourth and fifth instar silkworms can use ordinary mulberry leaves. Silkworms are suitable for growing in an environment with a temperature range of 22-29 degrees Celsius, and their optimal growth temperature is around 27 degrees Celsius.

If it still doesn't hatch, it will have to wait until the next year.

Some silkworms only hatch once a year, that is, they will not hatch until next year.

There are also hatched twice, generally hatched out about 15 days after laying, you see if the eggs are a little green.

It's just a bit of a black-gray (not pure black).

If it is green, it will hatch.

If you don't get green, it may be next year.

Look at it every day, and give it to the leaves as soon as they hatch.

If it hasn't hatched after May, you don't have to wait, it's next year.

Find some cotton, something that's very warm, wrap the silkworms and put them in your pockets. The heat on a person's body will soon hatch it. It's a little discolored, it's almost out, and then it's placed under the sun or next to the stove.

The shell can be hatched before it is broken, and the temperature must be enough.

Small silkworm mulberry leaves should not be tender, too tender and watery, diarrhea.

Is the temperature enough? And the humidity.

Hello! Under normal circumstances, it takes about 15 days for silkworm eggs to hatch.

The reasons for not hatching may be:

1. The temperature, humidity or sanitary conditions of the environment do not reach the standard of the hatching temperature of silkworm eggs can not be too high, and the most suitable temperature for general hatching is about 20 ° to 30 °. The ambient humidity should reach 50% to 60%, and pay attention to air circulation and maintain good ventilation.

In addition, the environment should be kept clean, avoid oil smoke, avoid mosquito and fly bites (insecticides cannot be used, you can use a gauze cover), etc.

2. Silkworm eggs are unfertilized eggs (empty eggs) that cannot be hatched or diapause eggs (dormant eggs) that cannot hatch in a short period of time There are generally three types of silkworm eggs, namely: diapause eggs (dormant eggs), non-diapause eggs (non-dormant eggs) and unfertilized eggs (empty eggs).

Only diapause eggs are those that can hatch in a short period of time (about 15 days). Diapause eggs are generally silkworm eggs that cannot hatch in the short term (3 months or more) and may not hatch until next year. Unfertilized eggs generally cannot hatch and will gradually lose water and dry up.

But the coarse slag hopper can not be put well and it is eaten by birds. Here's an introduction to birds:

1. Birds. Birds, also known as birds. Definitions:

Oviparous vertebrates covered with feathers, the main characteristics of birds are: the body is streamlined (spindle or fusiform), and most of them live in flight. The body surface is covered with feathers, and the forelimbs generally become wings (some species have vestigial wings); well-developed pectoral muscles; The rectum is short, the amount of food is large and the digestion is fast, that is, the digestive system is developed, which helps to lose weight and is conducive to flying.

The heart has two atria and two ventricles, and the number of beats is rapid. Constant body temperature. In addition to the lungs, the respiratory organs also have multiple air sacs to assist breathing, so that birds can breathe oxygen through the lungs during both inhalation and exhalation, that is, double breathing.

2. Habits.

Birds eat a variety of foods, including nectar, seeds, insects, fish, carrion, or other birds. Most birds are active during the day, but some birds (such as owls) are active at night or at dusk. Many birds make long migrations in search of the best habitat (e.g. Arctic terns), while others spend most of their time at sea (e.g. albatrosses).

Most birds can fly, and a few flat-chested birds can't, especially those that live on islands, have basically lost the ability to fly. Flightless birds include penguins, ostriches, kiwis (a wingless bird native to New Zealand), and the extinct dodo. When humans or other mammals invade their habitats, these flightless birds will be more vulnerable to extinction.

Every spring and autumn, birds fly in flocks in the sky, and this seasonal phenomenon of changing habitats in different seasons, or moving from nesting beams to wintering grounds, or returning from wintering grounds to nesting grounds is called bird migration. Every year, when the earth is rejuvenated, birds begin to carry out a series of activities such as courtship, reproduction, nesting, incubating eggs and brooding.

The above content reference: Encyclopedia - Birds.

You're all wrong. What could it be? I ate it as a preparer. I've also imitated Wu Xiao once. Silkworm skin. Broken. It must be a natural enemy, silkworm.

of natural enemies.

I've raised ......Seeing it with your own eyes, it bursts, bursting with green juice and undigested mulberry leaves, and then other silkworms will come to eat ......

I was eaten by rats, and I ate a few of my more than 200 pieces.

Last night, 32 silkworm babies were only 3-4 days old, and there are 11 left this morning, and there are no corpses, so I'm angry.

Like yours, I want to know.

I raised 9 silkworm babies and only 4 overnight!! What to do???

Silkworms that die suddenly can be caused by the following:

1.Viral infection: Silkworm virus is an important disease in the silk production process, and if it is not prevented and controlled in time, the infected person often dies suddenly in a short time.

2.Overfeeding: In the process of feeding, if the silkworm larvae are continuously fed too many mulberry leaves and food, it is easy to cause the digestive and absorption system of the silkworm to be overburdened and blocked, resulting in sudden death.

3.Lack of air or lack of oxygen: Silkworms need air circulation to maintain fresh air circulation in the process of feeding, if the ventilation conditions of the silkworm house are not good, or even if they are cracked by extreme weather such as cotton dragon wind, high temperature, humidity, etc., it may lead to the sudden death of the silkworm group.

4.Accidental ingestion of toxic substances: Silkworms are adulterated with substances other than fresh mulberry leaves, especially toxic chemicals, which will cause the silkworm's protruding branches to die.

Summary. Kissing is the cause of the death of silkworms 1, temperature reasons: its development temperature is 7-40, the appropriate feeding temperature is 20-30, and the temperature is too low to cause death.

2. Causes of diseases: Infectious silkworm diseases that are more common and more serious in harm, including viral diseases, fungal diseases and bacterial diseases. 3. Chemical causes:

Due to the abuse of pesticides, silkworms are poisoned and die. Non-communicable silkworm diseases are mainly pesticide poisoning, industrial exhaust gas poisoning and environmental pollution. 4. Environmental reasons:

If the silkworm room is not cleaned, the mortality rate will be very high, and the life of the silkworm passes through the silkworm egg, ant silkworm, mature silkworm, silkworm cocoon, silkworm moth, a total of more than 40 days.

Hello, please describe your question in detail, I will answer it for you.

Kissing is the reason for the death of silkworms 1, temperature reasons: its development temperature is 7-40, the appropriate temperature for feeding is 20-30, and the temperature is too low to cause death and cracking. 2. Causes of disease:

Infectious silkworm diseases, which are more common and more harmful, include viral diseases, fungal diseases and bacterial diseases. 3. Chemical causes: Poisoning and death of silkworms due to the abuse of pesticides.

Non-communicable silkworm diseases are mainly pesticide poisoning, industrial waste gas poisoning and environmental pollution resistance. 4. Environmental reasons: If the silkworm room is not cleaned, the mortality rate will be very high, and the life of the silkworm source mountain passes through the silkworm eggs, ant silkworms, mature silkworms, silkworm cocoons, silkworm moths, a total of more than 40 days.

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My silkworms are in their 15th day of fifth instar, and other people's silkworms have set cocoons. Mine is still moving, eating non-stop, can they still form cocoons?

Hello dear<>

Yes. At the fifth instar, silkworms reach the peak of growth and begin to age. At this time, the behavior of the silkworm will change, no longer eating mulberry leaves, no longer spinning silk, but will begin to prepare for cocooning.

To determine whether the silkworm can still form a cocoon, you need to check the state of the silkworm's beam slag. If silkworms are still eating and nibbling and continue to move, then they may still be growing and may form cocoons. However, if silkworms begin to show "lazy" traits and no longer move, but lie on mulberry leaves, then they may have aged or died and are unable to form cocoons.

If you want the silkworm to form a cocoon, it is recommended to replace the fresh mulberry leaves and place them in a quiet, warm and dry place to ensure the health of the silkworm and the need for cocooning. If the silkworms still don't eat or don't move, they can be placed in a quiet place and observed for a while until they show active features.