CATDOLL : CATDOLL: Contact information for silkworm breeding (complete contact information for silkworm breeding)

1. What are the costs and profits of silkworm breeding?

Very considerable. The breeding cost is about 20,000 yuan. Bombyx mori is a medicinal material with high medical value. There are few individual households and manufacturers that breed this medicinal material, but this medicinal material is in short supply in the market. The development direction of breeding this medicinal material in each city is different, but a 100 square meter shop breeding silkworms can earn at least 205,200 yuan. The value is objective.

2. Where is the best place to produce silkworm?

The best silkworms are produced in Zhejiang and Jiangsu. The characteristics of genuine silkworms are as follows:

Slightly cylindrical, often curved and wrinkled. 2-5cm long, 0.5-0.7cm in diameter. Grayish yellow surface, covered with white powdery aerial hyphae and conidia. Round head, 8 pairs of legs, obvious body segments, slightly bifurcated tail. Hard and brittle, easy to break, flat cross section, white outer layer, with 4 bright brown or bright black silk gland rings in the middle. Slightly fishy smell, slightly salty taste.

3. How are dead insects bred?

1. Rearing of adult silkworms. The rearing and processing of medicinal silkworms can be carried out throughout the year. In addition to a small amount of mulberry leaves, the feed can be replaced by more evening primrose, sword silkworm grass, white clover, and pine grass to make up for the lack of mulberry leaves and reduce the cost of rearing. The rearing and management techniques for adult silkworms are the same as those for conventional silkworm rearing, and they need to be reared until they are four days old.

2. Make the strain. Take 50 500 ml empty infusion bottles, fill them with cold boiled water, and inoculate one Beauveria bassiana test tube mother strain into 10 bottles. Let it stand for 1 hour as the original strain, and then inoculate each bottle of original strain into 5 bottles to make the liquid strain. If there is no test tube mother strain, you can use cold boiled water to wash the naturally infected silkworms, and the cold boiled water after washing can also be used as the liquid strain.

3. Spraying and inoculation. After the silkworms wake up from molting, use a sprayer to evenly spray the liquid strain onto their bodies until the skin is wet. If the strain has poor vitality, inoculation must be done within 1 hour after the liquid strain is made.

4. Strengthen management. Start feeding grass 15 to 20 minutes after inoculation of the bacteria, and feed once every 5 to 6 hours. Generally, 20 to 24 hours after inoculation of the bacteria, the silkworms begin to lose their appetite, move stiffly, and their body surface gradually turns blue-brown with black spots of different shapes; on the 3rd to 4th day, they begin to die; on the 5th to 6th day, the mortality rate reaches 70%, and on the 7th to 8th day, all of them die. During the death process of the silkworms, the dead silkworms should be picked out in time and spread in the breeding room, maintaining the same temperature and humidity to allow them to fully ossify, so as to increase the yield and drug content.

4. How to raise white silkworm?

1. Raising adult silkworms

The breeding and processing of medicinal silkworms should be carried out professionally in non-cocoon-producing areas to avoid devastating effects on cocoon silkworms. The breeding and processing time can be carried out all year round. In addition to a small amount of mulberry leaves, the feed can be supplemented with evening primrose, sword silkworm grass, white clover, and pine grass to replace mulberry leaves to make up for the lack of mulberry leaves and reduce the breeding cost. The breeding and management technology for adult silkworms is the same as that of conventional silkworm breeding, and they need to be raised until they sleep for four days.

2. Making strains

Take 50 500 ml empty infusion bottles, fill them with cold boiled water, and inoculate one Beauveria bassiana test tube mother culture into 10 bottles. Let it stand for 1 hour as the original culture, and then inoculate each bottle of original culture into 5 bottles to make liquid culture. If there is no test tube mother culture, you can use cold boiled water to wash the naturally infected silkworms, and the cold boiled water after washing can also be used as liquid culture.

3. Spraying inoculation

After the adult silkworms wake up from their fourth sleep, spray the liquid bacteria evenly on the silkworms' bodies with a sprayer until the skin is wet. If the strain has poor vitality, it must be inoculated within 1 hour after the liquid bacteria are made.

4. Strengthen management

15-20 minutes after inoculation, start feeding grass, once every 5-6 hours. Control the indoor temperature at 20-30℃, humidity at above 90%, and avoid ventilation. Generally, 20-24 hours after inoculation, silkworms begin to lose their appetite, behave in a dull manner, and their body surface gradually turns blue-brown with black spots of different shapes; on the 3rd-4th day, they begin to die; on the 5th-6th day, the mortality rate reaches 70%; on the 7th-8th day, all of them die.

When the silkworms die, they should be picked out in time and spread in the breeding room, maintaining the same temperature and humidity, so that they can fully stiffen, so as to increase the yield and medicinal content. When they all meet the requirements of silkworm pupae, they can be sold in the Chinese medicinal material market.

5. How to cultivate Bombyx batryticatus?

Beauveria bassiana culture

Beauveria belongs to the genus Beauveria of the family Pallenzoaceae, order Ascomycetes, class Deuteromycetes. The source of the fungus is the spores of Beauveria from the corpse of the silkworm. After separation, the high-quality single colonies are selected and transplanted on the slant culture medium and cultured at a constant temperature of 25-28℃. After about 10 days, the pure strain obtained by purification and separation is stored at a low temperature of 5℃ for expanded culture. The culture process of Beauveria is briefly described by the following formula for the silkworm breeding technology:

Corpse of silkworm with live spores (isolation and purification)

Slant medium inoculated with primary strains (solid fermentation culture)

Secondary strains (silkworm rejuvenation)

Level 3 strains (for production inoculation)

Open the windows to allow ventilation and prevent the corpse from rotting.

The picked silkworms are put into the drying room for high temperature sterilization, and dried at 90-100℃ for 4-8 hours to kill the Beauveria bassiana and dry the silkworms. Or the picked silkworms are dried by sun drying or baking after absorbing moisture with lime.

6. What procedures are required for silkworm breeding?

Apply for breeding projects to the animal husbandry management department.

Apply for land (for breeding farm).

If you want to build a breeding farm, you must also apply for a breeding license

7. How to breed silkworms to achieve high yield

The yield can be increased by spreading the diseased silkworms into each silkworm box so that they are infected with fungi over a large area.