Key Points of Autumn Silkworm Rearing Technology and Detailed Explanation of Feeding Management Methods
Silkworm rearing is an ancient farming practice in China, said to have originated with Leizu, the wife of the Yellow Emperor, and it is an important skill created by the people of ancient times. With social progress, the price of silk products has risen year by year, and the market demand for silk has grown ever larger. The economic returns of silkworm rearing are even higher than those of ordinary farming. In fact, when it comes to silkworm rearing, we also raised them when we were very young. Autumn is the peak season for silkworm rearing. According to data, autumn silkworm rearing accounts for about 40% of the annual rearing volume. So how can autumn silkworms be raised well? Let's take a look at the detailed introduction from Qinnong Web.
1. Disinfection of the silkworm room
Before rearing silkworms, the environment around the silkworm room must be cleaned thoroughly. The silkworm room must be washed, and the silkworm rearing tools must also be placed in sunlight after washing for sterilization, or they can be soaked in lime solution for disinfection. Remove the old soil from the floor of the silkworm room and fill it with a layer of unpolluted new soil. The walls of the silkworm room should be whitewashed again with lime slurry. After cocoon harvesting, large-scale disinfection work should be carried out to inhibit or kill pathogens and prevent their reproduction and spread. During silkworm rearing, diseased, disabled and poorly developed silkworms should be culled in time so as not to affect the entire silkworm colony.
2. Select good breeds
When rearing silkworms, select good breeds reasonably and in batches. Autumn silkworms can be divided by season into early, middle and late periods. Some farmers rear 5-6 times, which means more rearing cycles, and the silkworm room and rearing tools are all reused, with large and small silkworms raised together. This situation very easily leads to poor disinfection results, and the silkworms are prone to disease infection. During a disease outbreak, it is very easy for large numbers of silkworms to die, resulting in very few surviving silkworms and affecting economic returns. Therefore, when rearing autumn silkworms, rearing must be done in batches and reasonably, generally with an interval of 12-15 days between batches.
3. Strengthen mulberry tree management
When rearing silkworms, the source of mulberry leaves must be guaranteed. The consumption of mulberry leaves during silkworm rearing is huge. If mulberry leaves are insufficient, it will not only affect the growth of the silkworms but also affect silk production. Therefore, the management of mulberry trees is also particularly important when rearing silkworms. Mulberry trees should be loosened and weeded in time, watered promptly during drought, and drained promptly during rainy days to ensure vigorous growth of the mulberry trees. When picking leaves, it should also be done reasonably. Do not drain the pond to catch all the fish, that is, do not pick mulberry leaves in excessive amounts all at once and leave the mulberry trees bare. After picking, mulberry leaves should also be stored and transported properly to ensure their freshness and prevent deterioration.
4. Disease prevention and control
Common diseases in autumn silkworm rearing include gastrointestinal-type flacherie, muscardine, myiasis and bacterial diseases. Gastrointestinal-type flacherie can be prevented and controlled by sprinkling lime powder on the silkworm bed for disinfection; muscardine can be prevented and controlled with anti-muscardine powder; myiasis can be prevented and controlled by using "miecanying" medicine to sprinkle on mulberry leaves to feed the silkworms or spray on the silkworm bodies; bacterial diseases can be prevented and controlled by spraying 500-fold chloramphenicol solution on mulberry leaves.
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