Skillfully eliminate silkworm sand silkworm disease
Silkworm sand not only hides the pathogen of serious disease, but also is the breeding and spreading place of many kinds of silkworm disease bacteria, such as Bombyx mori, Bombyx mori, Bombyx mori and so on. Some data show that after 15 days of placing the infected silkworm sand in spring silkworm, if exposed to mulberry leaves, the incidence of midgut type serious disease of silkworm eating the mulberry leaves can reach 75%; after 1 day of placing the infected silkworm sand in late autumn, if it comes into contact with mulberry leaves, the incidence of midgut type serious disease of silkworm eating the mulberry leaves can reach 60%, and its incidence rate can reach 100% after 7 days. Therefore, in the daily feeding process, silkworm sand should be collected in time, add 5% quicklime, mix well, and then add appropriate amount of water to form a 1-meter-high stack, covered with film, so that it can be fermented at high temperature. When the temperature in the silkworm sand pile reaches 60 ℃ ~ 70 ℃, after about one week, the pathogens can be basically eliminated. One month later, the silkworm sand pile was removed and turned evenly up and down to make it fully corrupt and decompose to achieve the purpose of thorough sterilization. In this way, it is very safe and reliable to use silkworm sand as fish feed or fertilizer.
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Dried fish roe
The ovaries of Ankang fish are most plump and brightly colored in spring, like a long red and yellow ribbon stacked in the abdominal cavity. After dissection, the fish roe was washed with sea water, hung on the bamboo pole to dry, or cut into 1-meter-long strips and placed on the mat, shaped and turned, then dried and folded into 50cm strips, tied into small bundles, then tied up large pieces or packed in rectangular baskets. The finished product is dark red, the seed board is flat, dry evenly, and the smell is normal. Fish roe can also be steamed to mature dry products. When the fresh fish roe is half-dry
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Scientists solve the mystery of flying snake "flying"
You may not be able to imagine how snakes can "fly" like birds without wings or wing membrane-like appendages. However, scientists have found that some snakes can not only fly, but also be good at flying. Flying snakes shake their ribs to generate power Jack Soka of the University of Chicago has been studying the ability of snakes to fly for eight years. Recently, Sokka revealed in a professional magazine why Flying Snake is good at flying. "although the flying snake lacks a wing membrane-like attachment," he said.
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