CATDOLL : CATDOLL: Why don't we raise the silkworms at home? Why do we raise them in the mountains?

1. Sun-oriented characteristics: The Northeast Tussah silkworm is different from the ordinary mulberry silkworm. It has the characteristics of upwardness and phototropism. It likes light and dislikes dark space. It must be raised in a full-light space.

2. Large food intake: The Northeastern tussah silkworm eats much more than ordinary mulberry silkworms, and ordinary mulberry silkworm breeding methods cannot meet their needs. Breeding on the mountain can be more convenient and can also ensure the food needs of the tussah silkworms.

Additional information:

Characteristics of Tussah Silkworm:

1. Long seed preservation period. The seed cocoons are protected from October to June of the following year, and the seed preservation period is about 9 months (240-270) days. It goes through four seasons: autumn, winter, spring and summer. Therefore, the quality of seed cocoons is high, especially there must be no tender pupae, weak pupae, and slow-developing pupae. The temperature and humidity of the seed storage must be strictly controlled. The hatching rate of its seed eggs is also relatively low.

2. Early silkworm period. It is 10-15 days earlier than autumn silkworms. The average temperature during the young silkworm period is 21-22℃, which is close to the optimal temperature for development. The adult silkworm period, especially the 5th instar period, avoids low temperature and cold damage. Therefore, the temperature during the silkworm period is suitable for the growth and development of the larvae, and the cocooning time is 15-20 days earlier than that of autumn tussah silkworms.

3. The rapid growth and development of tussah silkworms requires strengthened management. The temperature is high during the silkworm period, and the larvae grow and develop rapidly. The amount of leaves they eat and the amount of digestion per unit time are higher than those of autumn tussah silkworms. Therefore, it is necessary to strengthen the technical management of silkworm rearing, and timely level and move the silkworms to ensure that they have good leaves and food.

4. There are many enemies and pests, and the work of protecting seedlings is demanding. The harvest is early, and it coincides with high temperatures, so there are many insects and strong activity, especially in drought years, there are many grass bees, so we must pay attention to pest control and strengthen seedling protection.

References Sources:

Baidu Encyclopedia - Tussah Silkworm

Tussah silkworms are much larger than mulberry silkworms and have a larger appetite. If they are raised at home, not only is there not enough space, but there are also not enough tussah leaves for them to eat, so they are raised in the mountains.

Unlike mulberry silkworms, tussah silkworms are upward and phototropic. If you put them in a box, they will not stay inside and eat leaves. Instead, they will crawl out and move towards higher places and places with light.

Someone has done an experiment. You can pick oak branches with leaves, put them in a water bottle, and put silkworms on them, but they must be in full light. The silkworms will move around on the top of the leaves.

Additional information:

The breeding procedure of Chinese tussah silkworm Shangkai adopts a three-level system of mother seed, original seed and common seed. Mother seed is bred by provincial silkworm seed farms, original seed is bred by municipal or county silkworm seed farms, and common seed is bred by breeding villages and households. When the leaves harden, the seed cocoons are usually spread out or hung in strings in a seed storage room with artificially controlled temperature, humidity and light.

Use natural temperature, the suitable temperature in winter is 2 to -2℃. After wintering, the pupae are released from dormancy and kept at 2 to 5℃ until they are warm cocoons. The "two-incubation-one-release" seed cocoons are placed in the seed storage, which is kept at 0 to 5℃ from winter to the next spring, and the storage temperature is kept at 6 to 8℃ after the summer solstice.

The relative humidity suitable for seed preservation is 50-70%. Warm cocoon temperature: In the early stage of bivoltine spring seeds, the temperature should be raised by about 1°C every day, and kept constant at 18-21°C; autumn seeds should be controlled between 22-27°C.

Tussah silkworms are much larger than mulberry silkworms, and their appetite is also large. If they are raised at home, not only is there not enough space, but there is also not enough leaves for them to eat. Therefore, they are raised in the mountains.

Unlike mulberry silkworms, tussah silkworms are upward-oriented and phototropic. If you put them in a box, they will not stay inside to eat leaves, but will definitely crawl out and crawl to higher places and places with light. Some people have done experiments, picking oak branches with leaves, inserting them in a water bottle, and placing silkworms on them, but they must be placed in full light, as silkworms will move around on the top of the leaves.

There are oak leaves on the mountain