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Detailed Explanation of Key Technical Points for Cooperative Rearing of Young Silkworms
As the saying goes: "Rearing young silkworms well means 70% of the harvest." For this reason, special attention should be paid to the cooperative rearing of young silkworms. (1) Specific requirements and technical measures for cooperative rearing of young silkworms 1. The cooperative rearing room should use a dedicated young silkworm room. It needs good heat preservation and moisture retention performance, and easy ventilation. Strict disinfection should be carried out before rearing silkworms, implementing "three disinfections and one fumigation." "Three disinfections": the first round uses lime slurry; the second round uses bleaching powder; the third round uses disinfection cleaner; "one fumigation": use toxic powder fumigation smoke. 2. Heating is uniformly provided by heated bed warming. Because heated bed warming makes
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What are the technical measures for autumn fingerling rearing
Autumn water temperatures generally range between 20 and 30°C, which is a good time for fish growth. If autumn is not used promptly to rear fingerlings into plump, strong, large-sized fingerlings, then when the cold winter arrives, most fingerlings will die because of weak constitution, and the average survival rate is often less than 60%. Therefore, strengthening autumn fingerling rearing is the top priority for farmers. The specific rearing measures are: disinfect and clear the pond, then transfer to a new pond. In the original pond used for rearing fingerlings, after several months of culture in spring and summer,
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Detailed Explanation of Key Technical Points and Management Methods for Silkworm Rearing
I. Incubation Supplementation and Silkworm Collection Currently, all silkworm eggs used for producing raw silk cocoons are binary hybrids or multi-line hybrids, and the technical handling is roughly the same. Proper protection of silkworm eggs and the use of appropriate collection methods have a great effect on the growth and development of silkworms. 1. Receiving eggs: It is best to do this in the early morning or evening when the temperature is lower. During this period, avoid direct sunlight or rain, pay attention to ventilation, and never stack or press them. 2. Incubation supplementation of silkworm eggs: After receiving the silkworm eggs from the silkworm egg farm or station, they should continue to be protected in a suitable environment
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Key Technical Points for Silkworm Rearing, Cocoon Harvesting and Cocoon Selling
I) Cocoon harvesting 1. Proper time for cocoon harvesting: After the mature silkworm finishes spinning its cocoon, it molts and pupates. As the pupa develops, the body skin hardens and darkens in color. When the skin color turns yellow, it is the proper time for cocoon harvesting. In the spring silkworm season, it is 6-7 days after mounting on the cocooning frame. In the summer-autumn silkworm season, it is 5-6 days after mounting, and in the late-autumn silkworm season, it is 7-8 days after mounting; generally the cocoons can then be harvested. If cocoons are harvested too early, the silkworm has not yet pupated, and "hairy-foot" cocoons are difficult to dry evenly and suitably during cocoon drying, lowering cocoon quality; moreover, when such cocoons are boiled, the impurities in the silkworm body readily seep out into the cocoon layer, worsening the color of the raw silk.
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Introduction to the Guican No. 1 Silkworm Variety and Key Rearing Points
1. Silkworm eggs are incubated using the high-temperature photoperiod method. In the early incubation period (days 1-4), maintain 26°C with a wet-dry difference of 1.5; in the late period (days 5-10), maintain 28°C with a wet-dry difference of 1.5-1. Provide 16 hours of light per day. After the appearance of blue dots, keep in darkness to promote uniform hatching. 2. Carefully carry out disease prevention and disinfection before, during, and after rearing. During the rearing period, strengthen disease prevention, hygiene, and technical management to eliminate sources of disease and reduce the occurrence of diseased silkworms. 3. For newly hatched silkworms and their first feeding, carefully select fresh, suitably mature mulberry leaves for feeding. 4. During the late larval stage, especially during the peak feeding period of the fifth instar,
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What time and conditions are needed for artificially rearing queen bees?
When the new bees reared by the colony that year have completely replaced the old overwintering bees and the colony has entered its growth and expansion period with a relatively strong population, you can prepare for artificial queen rearing. In the north, it is best to rear queens in early summer when the daytime temperature is stable above 20°C and there is a nectar source, especially when there is an abundant pollen source and drones also begin to emerge one after another. In North China this is generally in May. This can ensure the quality of the queen bee, and also allows the early replacement of aging queens with new queens. Colonies with a queen from the current year will not undergo natural swarming. Use the new queens reared early to carry out artificial colony splitting
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A Complete Analysis of Viper Rearing Techniques and Methods
The viper, also known as the "earth snake," is a small venomous snake distributed throughout China. Besides being eaten, it has high medicinal value. Its breeding stock is easy to obtain, and the rearing method is not difficult, making it a new type of breeding industry for people to get rich. 1. Development and utilization: Some precious medicines produced using the viper as a raw material can cure many difficult and complicated diseases. At present, the ways in which domestic scientific research institutions develop and apply it include: (1) Viper venom is a raw material for producing highly effective antithrombotic drugs. (2) Dried snake has the effects of dispelling wind, calming, detoxifying, relieving pain, strengthening the body, and promoting lactation. Therefore, developing
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Scientific feeding is essential in soft-shelled turtle hatchling rearing, and mastering the method is key
affects the farming of adult soft-shelled turtles. Whether scientific feeding can be carried out is the technical key affecting the growth and quality of soft-shelled turtle hatchlings. For this reason, here is an introduction to scientific feeding in soft-shelled turtle hatchling rearing, for reference and application. As with farming other aquatic animals, feeding can follow the four-fixed principle, namely fixed quality, fixed quantity, fixed time and fixed location. However, the four-fixed contents of feeding in soft-shelled turtle hatchling rearing have their own characteristics. Because soft-shelled turtle hatchlings, during their growth process, not only need to accumulate energy and increase body weight, but also need to provide various nutrients and
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Methods for Introducing Turtle Hatchlings in Autumn and Rearing Methods
Because turtle hatchlings go through an adaptation process when moving from one environment to a new one, with a cycle of 1 month to 2 months before they gradually become normal, and moreover turtles are ectothermic animals, after entering autumn, as the temperature gradually drops, turtles also gradually grow more slowly. The advantage of introducing stock in autumn lies in seizing the opportunity when turtles grow slowly at this time, letting them adapt to the new environment. After spring begins, the temperature rises, and the turtles immediately enter a growth state without needing to adapt to the new environment again. Under normal circumstances, turtle hatchlings introduced in autumn enter the growth period 1 month to 2 months earlier than
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Detailed Explanation of Rearing Standards and Key Technical Points for Young Silkworms
The key to rearing young silkworms is to master reasonable temperature and humidity, appropriately mature fresh mulberry leaves and reasonable techniques for handling molting and awakening. For leaves used for collecting newly hatched silkworms, the leaf color is yellow with a hint of green, slightly wrinkled; in spring pick the 2nd leaf, in summer and autumn pick the 2nd-3rd leaf. For the 1st instar, use moderately mature leaves that are green with a hint of yellow, with a flat leaf surface, the 3rd-4th leaf, preferably tender rather than old, depending on the climate. For the 2nd instar, moderately mature leaves have a normal green color; for the 3rd instar in spring, three-eye leaves can be used. For the 1st-2nd instars, cut leaves into square pieces 1.5 times the body length of the silkworm, and use strip leaves when expanding the rearing bed. During the spring silkworm season, one can aim for 10 days to the third molt.
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