Incubation method for enhancing day hatchability rate of silkworm eggs

A hatchability and silkworm seed technology, applied in the field of sericulture, can solve the problems of differential regulation, multiple batches, ignoring timely regulation, etc., and achieve the effects of accurate regulation and control, high one-day hatching rate, and superior technical functions.

Inactive Publication Date: 2010-12-15
JIANGSU MINXING COCOON & SILK +1
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Problems solved by technology

In the existing technology, besides the accurate quantitative adjustment of the temperature, most of the influencing factors are still in the qualitative control, which inevitably leads to a large difference in the development of the silkworm eggs.
Furthermore, because each embryonic development stage is not simple and uniform throughout the development process, there are significant differences in the duration, development speed, and suitable conditions of each developmental stage, and the one-day hatching rate is only a characterization of the final result of the entire embryonic development stage. It is a concentrated reflection of the development status of each stage of the embryo. There are mutual influences and correlations between the stages. However, in the existing greening technology, people only pay attention to the hatching results of the greening, and ignore the timely regulation of each stage of the development process. , neither reasonable optimization and differential adjustment of environmental factors at each embryonic development stage, nor attention to the mutual matching and coordinated selection of environmental conditions between various developmental stages, formed the dispersion of silkworm egg hatching, which seriously restricted the uniform rate of hatching. improvement
Therefore, in the existing technology of accelerating greening, there are still the defects that the hatching rate of silkworm eggs is not high in one day, many batches, many labors and the ant body are not strong enough.

Method used

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  • Incubation method for enhancing day hatchability rate of silkworm eggs

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Experimental program
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Effect test

Embodiment 1

[0030] The batches of silkworm eggs to be greened are: 2009 spring silkworm period, Dongtai City, Jiangsu Province Tianrun Silkworm Egg Co., Ltd. for spring production in autumn 2008, Tianrun 149 batches of Haoyue Jingsong. When taken out from the cold storage of silkworm eggs, the developmental stage of silkworm eggs is in the third stage. 1 , the greening production plan is hatched on the 12th day after leaving the warehouse, the greening time is 272~280h, and the hatching rate of greening one day is 99%.

[0031] About 10 days before the silkworm eggs enter the greening room, ultraviolet rays are used to disinfect the greening room to kill harmful pathogens. After disinfection, the doors and windows are opened to fully dehumidify. After the silkworm eggs leave the outer warehouse, it is necessary to ensure that the silkworm eggs are sent to the greening room within 4 hours, and the seeds are pushed in time to shorten the accumulation time of the silkworm eggs; disinfect. ...

Embodiment 2

[0054] The batches of the green silkworm eggs are: 2008 mid-autumn silkworms, 12 batches of Jingsong Haoyue used in the spring and autumn of 2008 in the silkworm farm of Binhai County, Jiangsu Province, and the hatching rate of the green silkworms in one day is 99%.

[0055] The disinfection treatment of silkworm egg greening room, entering the room to spread seeds, sampling and dissection, and evaluating developmental homogeneity are all the same as the above-mentioned implementation. The control and adjustment method of the main environmental parameters in the silkworm egg greening room is also the same as the above implementation.

[0056] However, the environmental parameters of each stage after it enters the accelerating chamber are as follows:

[0057] Sampling inspection of 40 silkworm eggs to determine that the initial embryo of the silkworm eggs entering the greening chamber is D 1 , the stage embryo development lag rate α or the stage embryo development advance rate...

Embodiment 3

[0068] The batches of green silkworm eggs are: late autumn silkworms, 59 batches of Haoyue Jingsong used in the spring and autumn of 2009 in the sericulture field of Dongtai City, Jiangsu Province, and the hatching rate of green silkworms in one day is 99%.

[0069] The disinfection treatment of silkworm egg greening room, entering the room to spread seeds, sampling and dissection, and evaluating developmental homogeneity are all the same as the above-mentioned implementation. However, the environmental parameters of each stage after it enters the accelerating chamber are as follows:

[0070] Sampling inspection of 40 silkworm eggs to determine that the initial embryo of the silkworm eggs entering the greening chamber is D 1 , the stage embryonic development lag rate α or the stage embryonic development advance rate β should not exceed 5%. At this time, the initial environmental parameters of the greening room are adjusted to temperature T = 20 ℃, relative humidity B = 65%, li...

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Abstract

The invention discloses an incubation method for enhancing the day hatchability rate of silkworm eggs, comprising the following steps of: concretely setting the environmental parameters of embryonic development stages from D1 to F5 by taking the D1 as an incubating and temperature-increasing initial embryo; when staged embryonic development lag rate alpha is higher than or equal to 5 percent, regulating the environmental temperate of the embryonic development stage to be higher than the temperature upper limit value of a corresponding embryonic development stage by 0.5-1 DEG C, wherein the environmental humidity of the embryonic development stage is increased by 3-5 percent on the basis of a humidity upper limit value of the corresponding embryonic development stage; and when staged embryonic development advance rate beta is higher than or equal to 5 percent, regulating the environmental temperate of the embryonic development stage to be lower than the temperature lower limit of the corresponding embryonic development stage by 0.5-1 DEG C. The incubation method not only reasonably and accurately determines the environmental condition parameters of the development stages of the silkworm egg, but also carries out the mutual matching and coordination among the environmental parameters of the embryonic development stages, is convenient to implement the staged regulation for the silkworm eggs and has very wide popularization and application prospect.

Description

technical field [0001] The invention relates to sericulture technology, in particular to a method for accelerating greening of silkworm silkworm eggs. Background technique [0002] Sericulture production is an agricultural production activity with strong technicality, high environmental requirements and complex operation procedures, and has the characteristics of combining aquaculture and breeding. As far as its sericulture industry is concerned, it includes multiple production processes such as preparation for silkworm rearing, silkworm breeding, harvesting ants, feeding until clustering cocoons, etc. Only by scientifically and reasonably controlling each process of silkworm rearing, In order to produce high-quality and high-yield silkworm cocoons and high-grade silk products, in order to obtain higher economic benefits. [0003] Acceleration of silkworm eggs is an important link in the production of silkworm rearing, and it is the guarantee for obtaining high-quality and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/04
Inventor 杨斌丁志用崔虹黄继青
Owner JIANGSU MINXING COCOON & SILK
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