A control method for the vertical transmission of microparticle disease embryos in double-crossed silkworm stock

Abstract

The invention discloses a control method for semina vertical transmission of bombyx mori double cross protospecies pebrine. The method comprises the following steps that for silkworm eggs free of refrigeration, after bombyx mori produces the silkworm eggs, the silkworm eggs are kept staying at 20-30 DEG C for 15-24 h, and soaked in water at 47-48 DEG C for 6-10 min, and then the silkworm eggs are taken out, washed until no smells exists, and dried; for refrigerated silkworm eggs, after the refrigerated silkworm eggs are taken out from a refrigerator, the refrigerated silkworm eggs are kept staying at 15-20 DEG C for several hours for a buffer effect, put into water at 47-50 DEG C for soaking for 6-10 min, and the refrigerated silkworm eggs are taken out, washed until no smells exists, and dried. By means of the control method for semina vertical transmission of bombyx mori double cross protospecies pebrine, the relative control rate of semina vertical transmission of bombyx mori pebrine can reach 90-97%, the hatching rate of the silkworm eggs can reach more than 92%, and the control method for semina vertical transmission of bombyx mori double cross protospecies pebrine has no harmful effects on the growth of the bombyx mori.

Description

technical field [0001] The invention belongs to the field of sericulture production, and in particular relates to a method for preventing and controlling the vertical transmission of microparticle disease embryos of silkworm double-crossed original seeds. Background technique [0002] Bombyx mori microsporidia is an infectious silkworm disease caused by pathogenic microsporidia such as Nosema bombycis infecting silkworms. The disease can be infected by eating mulberry leaves, and can also be infected by embryo seeds, so the disease has always been valued by the industry and is the only object of silkworm eggs quarantine. [0003] In the 1980s and 1990s, my country's sericulture developed rapidly, but the backward production facilities of silkworm eggs and extensive technical management led to the epidemic of silkworm microparticle disease in the whole country. In recent years, with the change of sericulture area, seed production environment and business model, silkworm micr...

AI Technical Summary

Problems solved by technology

However, there is still a lack of specific treatment methods for silkworm microsomosis. At present, it is mainly to check the microsporidia of ovipositing moths under a microscope, and remove the poisonous silkworm eggs according to the results of the microscopic examination, so as to prevent and control the germ infection of silkworm microsomosis.

However, this method is related to the experience and technical level of the drug inspectors, and it is easy to cause misjudgment and missed judgment.

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