What do silkworms need for water and food to grow and survive?

Silkworms need food for the growth process, and all living creatures need food as long as they grow. To put it simply, the eggs laid by the silkworm moth hatch and turn into a pupa moth, and will complete the cycle of a new generation, which is the life history of the silkworm. Silkworms reproduce in eggs, which look much like fine-grained sesame seeds, about 1 mm wide and about mm thick, and begin to develop when the temperature rises.

After 7-15 days, when the silkworm eggs become transparent and the outline inside can be seen, it means that the silkworm baby is about to come out. The growth of silkworms is generally 8-9 days in the incubation period, about 25 days in the larval stage, and 14 days and 18 days in the pupal stage. The silkworm moth period is 3 days and 5 days.

The growth process of silkworms:

1. Silkworm egg hatching: After 8 9 days of green stimulation, the silkworm baby hatches from the silkworm egg, and the silkworm is black and small, commonly known as ant silkworm.

2. First instar: The color of the first instar silkworm changes from black to dark brown, and the mulberry eating time is 3 4 days, and the amount of food is not large. After entering the sleep period, the first molt will be carried out, and the sleep period will last 8 to 12 hours.

3. Second instar: the silkworm body grows significantly, the color becomes lighter, the mulberry eating time is about 3 days, and the sleep period is 8 12 hours.

4. Third instar: The color of the silkworm body changes to light brown, the amount of food begins to increase, and it enters the dormant period after about 4 days. 1 3 instar silkworms are generally called small silkworms, and enter the large silkworm stage after 10 to 14 hours.

5. Fourth instar: The silkworm that enters the large silkworm stage develops very quickly, and the amount of food increases significantly. The 4th instar time is generally 5 days, and the sleep period is very long, generally called the large sleep period, and the sleep period can reach 30 to 40 hours.

6. Fifth instar: the period when mulberry cannibalizes the largest amount of leaves, and the amount of leaves eaten in about 7 days accounts for more than 75% of the total leaf eat. After 7 days, the silkworm body begins to shorten and become brighter, commonly known as the mature silkworm, the mature silkworm no longer eats, and begins to spin silk and form cocoons.

If it's a fill-in-the-blank question, the answer is oxygen. Basically, living things need food, water, and oxygen to survive.

If you ask us simply, the answer is that you don't need water, just mulberry leaves and oxygen.

Pro, the growth and survival of silkworms need mulberry leaves and the right temperature on it.

Generally, it is enough to only feed mulberry leaves.

Mainly eat mulberry leaves, but you can also eat some lettuce leaves, elm leaves, dandelions. These are all foods that silkworms love to eat.

Silkworms love to eat mulberry leaves, cabbage leaves, or other vegetable leaves, so when raising silkworms, you should prepare enough food.

I love to eat mulberry leaves, and everyone knows that silkworms are mainly mulberry leaves, so I usually like to put some mulberry leaves when raising silkworms.

I like to eat mulberry leaves, which are a very delicious food for silkworms and can also improve their nutrition.

Mulberry leaf. If silkworms are fed with this thing, they can grow up quickly, and the mortality rate is also very low.

This small animal usually prefers lettuce leaves, as well as dandelion, lettuce leaves, and elm leaves.

Silkworms love to eat mulberry leaves, mulberry leaves are the favorite food of silkworms, silkworms are particularly energy and time, is a relatively difficult job.

Silkworms love to eat mulberry leaves, lettuce leaves, dandelions, belong to vegetarian animals, and the process of raising silkworms is very hard.

Of course, their favorite food is mulberry leaves, and it may be their only favorite food.

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. The mulberry leaves that a silkworm eats in its lifetime are about 25 grams. For example, if you feed 40 silkworms, you only need 1 kg of mulberry leaves.

But in the actual feeding process, there will be some mulberry leaves wasted, so that more mulberry leaves will be needed. After the fifth instar, the silkworm should stop eating mulberry leaves and start looking for a suitable place to spin silk and form a cocoon (also called a mountain cocoon). In rural areas, grassy hills or pine branches made of straw are generally used as silkworm hills.

Silkworms that are fed as pets can be replaced by a cardboard box divided into many small compartments. Precautions for sericulture.

1. Mulberry leaves are kept fresh 1. Place mulberry leaves in the refrigerator (about 5 degrees Celsius) to prevent deterioration. 2. Tie the mouth of the plastic bag tightly to slow down the drying and dehydration time of mulberry leaves. 2. Feeding of silkworms 1. Take out the mulberry leaves from the refrigerator for a few minutes to restore the mulberry leaves to room temperature before feeding.

2. Do not wash mulberry leaves and keep them in a natural state. 3. For the feeding of second-instar silkworms, please choose tender mulberry leaves, 1-2 pieces per day. 4. The feeding time can be selected in the morning or noon.

3. Other precautions 1. Do not catch silkworms with your hands, and use the soft bristles of the brush to catch up; 2. Do a good job of cleaning the silkworm house every day; 3. The silkworm house should be placed in a cool place (about 25 degrees Celsius).

Yes, silkworm larvae (baby silkworms) will eat food all the time as they grow. Unless it's during their dormancy.

When the silkworm hatches from the silkworm egg, the color of the body is brown or black, very small, and there are many fine hairs, and it looks a bit like an ant, so it is called ant silkworm. After crawling out of the egg shell, they will eat mulberry leaves after 2 to 3 hours.

Silkworm babies eat a lot of mulberry and eat almost day and night, so they grow 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 it is preparing to shed its skin on the inside.

After shedding the old skin, the silkworms will start eating non-stop. At this time, the growth of silkworms enters a new instar stage, and a total of 4 molts from ant silkworms to silk cocoons. Sleeping is one of the growth characteristics of silkworms, and sleep is a genetic trait of silkworms, which is also affected by the environment.

No, it just eats mulberry leaves during the day and sleeps at night.

The life cycle of a silkworm is usually divided into 4 stages: egg, larva, pupae and adult. The larval stage of silkworms is the stage that requires a lot of food as they need constant intake of nutrients to support the growth and development of the body.

The larval stage of silkworms usually lasts about 4 to 6 weeks, during which they eat a large number of mulberry leaves or other plant leaves that are suitable for them. The pupal stage of a silkworm is a transitional period of transformation into an adult, in which the body of the silkworm undergoes great changes, but it does not need to eat any food. The nutrients ingested by silkworms in the larval stage are stored for body reconstruction and development at the pupal stage.

The pupal stage of silkworms usually lasts about 2 weeks. When silkworms complete their pupal stage, they become adults and begin mating and laying eggs. Adult silkworms usually stop feeding and rely on nutrients stored in the larval and pupal stages to sustain themselves until the end of their lifespan.