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How to raise the autumn silkworm
In the Qujing area, there are more than 140,000 mu of mulberry mulberry, which is the main mulberry sericulture area in our province. Now it is time to raise autumn silkworms and late autumn silkworms. However, autumn silkworm and late autumn silkworm breeding are difficult to raise in the year. A group of how to put autumn silkworms and late autumn silkworms in order to develop well-knit, robust, high-quality and high-yield products must pay attention to the following points. Strictly sterilize before sericulture 1. Cleaning and cleaning First, we must conduct a comprehensive cleaning, soaking, cleaning, removal of indoor and outdoor diseases of silkworm carcasses, cocoon debris, silkworm sand and weeds and other garbage. 2. Sun exposure and clean silkworms should be exposed to sunlight for 3 to 4 days to kill pathogens through the sun's ultraviolet rays. 3. Pharmaceutics disinfection Silkworm silkworms are sterilized. Highly-efficient and broad-spectrum disinfectants are used. The correct disinfection method must be mastered. At present, new types of disinfectants, such as silkworms with a net disinfectant (used at a concentration of 250 times) and elimination of spermatozoa (used at a concentration of 250 times), are inexpensive, effective, and have a good killing effect against various pathogens. In addition, the traditional formalin lime slurry (formalin 2%, lime 0.5% to 1%) and bleaching liquid also have good results. Regardless of the type of poison agent used, the preparation concentration should be accurate, the spraying should be uniform, the amount of spray should be sufficient, and the contamination should be prevented after spraying. Jamsil disinfection should include diverticulum, storage mullion and other ancillary silkworms. The channels around Jamsil and the silkworm sand should also be sprayed with liquids. Silkworm silkworms, silkworm silkworms, mulberry silkworms, and other large silkworms can be placed in the silkworms and sterilized together. Small silkworms such as silkworm chopsticks, goose feathers, and small silkworm nets can be steamed and sterilized. Small silkworm communties should be first used formalin lime slurry disinfection, every 3 to 4 days and then use silkworms to kill or eliminate the essence once. Breeding technology The day before the replenishment of the collared silkworm species, the breeding room should be warmed to 38°C, and the temperature difference between wet and dry should be 2°C to 3°C. After returning the silkworm species, it was evenly spread evenly on the silkworm seat paper, and the room temperature was raised to 43°C and the wet-dry temperature difference was 1°C to 2°C. The use of coal furnace heating Jamie room should pay attention to doing a good job of ventilation. Jamsil should be strictly protected from light so that the embryos can be developed neatly. If the silkworm eggs turn green more homogeneous, then the first day can be sensitized to receive ants, otherwise it is appropriate to receive light-sensitive ants in the early morning of the third day. 2. The timely receipt of ants to collect ants is too early, and some silkworms have no appetite at the time of receiving ants. If you receive the ant when you receive it, it will cause the development of malaria. The optimum time for receiving ants should be 2 to 3 hours after egg hatching. Most of the ants have appetite and start to feed. Autumn autumn silkworms receive ants at 8 to 9 am and strive to end before 10 o'clock. If the uncovered silkworm eggs are found in the collected ants, they should continue to be protected in the dark place, and the ants should receive the light on the next day. 3. Control of density such as silkworm eggs is uneven and can cause silkworms to be unevenly developed. Therefore, every time before giving Mulberry should expand the seat, uniform, and require small silkworm to silkworm does not touch silkworm, silkworm does not overlap is appropriate. 4. Rational use of leaves in order to promote the development of silkworm silkworm, silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworm silkworms In addition, give Sang even thickness. 5. Silkworms that change the position of silkworm foil at different positions in the same silkworm room are influenced by temperature differently. If the temperature above the silkworm shelf and near the fire source is high, the growth of the silkworm is rapid, whereas the temperature is low, and the growth of the silkworm is slow. Therefore, it should be noted that the position of the silkworm foil is frequently changed. Small silkworms are exchanged at least once a day. 6. Timely feeding for premature feeding, some silkworms have no appetite, and even some parts of the silkworm remnants, resulting in the same batch of nibbles, uneven development, so timely feeding. Before going to sleep, if the silkworms are not fully developed, the time for feeding after sleep can be delayed by 3 to 4 hours compared with normal feeding. This ensures that the slower-growing silkworms and the faster-growing silkworms enter the leaves at the same time. 7. After adding the net and adding green to the mulberry after 2 times of general sleep, it is still not able to sleep and should be added to the net. The proposed Qingtou silkworm should be placed near the heat source, and the large silkworm head can be placed on the upper shelf of the silkworm frame. A small number of stunted, weak physical silkworms will definitely be eliminated. 8. It is one of the important measures to improve the quality of silkworm cocoon at the appropriate time using cluster clusters on the checkerboard clusters. 9. After protecting the silkworm clusters in the cluster, we must do a good job of protecting the clusters, turn the checkered clusters in due course, pull out the free silkworms, and prevent them from contaminating others. After the cluster at room temperature maintained at 23 °C ~ 25 °C, so that silkworms quickly spit, spit silk. In addition, prevent rats from stealing cocoons. (Huize County Agriculture Bureau)