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Method for delaying hatching of F1 hybrids of silkworm eggs in hatching

A technology for silkworm seeds and silkworm eggs, which is applied to the field of preservation of silkworm eggs of Bombyx mori, can solve problems such as inability to provide suitable silkworm seeds, and achieve the effects of prolonging effective refrigeration time, improving balance and facilitating emergency treatment.

Inactive Publication Date: 2013-10-23
如皋市蚕桑技术指导站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some areas, it is necessary to adjust the layout of the silkworm season, such as increasing the breeding in the second spring, but it is often impossible to implement due to the inability to provide a suitable supply of silkworm eggs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In 2010, in Wanquan Village, Changqing Town, Rugao City, Jiangsu Province, at 32.23 N and 120.33 E, there was a low-lying mulberry field with an area of ​​56 mu. Due to the late frost on April 29, the new shoots of the mulberry trees suffered from freezing damage, the growth points turned black, the leaves were scorched, and the growth of the mulberry trees stagnated. At that time, 65 silkworm eggs ordered by 38 silkworm farmers had been released from the warehouse and started to green. In order to reduce the loss of silkworm farmers and prevent the waste of silkworm eggs, we adopted the following methods to refrigerate the silkworm eggs to extend the time for greening:

[0021] 1. After the first-generation hybrid silkworm eggs (Suzhen×Chunguang) and silkworm egg embryos in the process of greening have developed to the turning green stage, continue to protect them in the original environment for 6-8 hours at 25°C and 85% humidity;

[0022] 2. Tie the above-mentioned fir...

Embodiment 2

[0029] During the mid-autumn silkworm period in 2009, chlorpyrifos was misused in Yangzhuang Village and Shangshu Village, Dongchen Town, Rugao, Jiangsu Province, resulting in the death of 545 silkworm eggs from 286 households in the two villages. Adopt the method of embodiment 1 to suppress the 545 first-generation hybrid silkworm eggs of 15 days in time by adopting the method of embodiment 1 now, reissue to the silkworm farmer to raise, avoided the loss of silkworm farmer more than 800,000 yuan.

[0030] .

Embodiment 3

[0032] In recent years, in order to reduce the impact of various factors on sericulture production, Rugao City, Jiangsu Province has pre-released a generation of hybrid silkworm eggs accounting for about 10% of the total silkworm eggs when silkworm eggs are out of the warehouse at each silkworm period. In the late Qing Dynasty, this method is used for low temperature protection to delay the hatching of silkworm eggs, effectively avoiding the loss of silkworm breeding caused by various reasons. At most, a total of 1,508 silkworm eggs protected by this method were distributed in one silkworm period.

[0033] .

[0034] The greening treatment of the silkworm eggs in the above table after they are taken out of the refrigerator varies according to different time periods, as follows:

[0035] Within 1-5 days of storage, take it out of the lead leather box at any time, and after 3-4 hours at an intermediate temperature of 13-15°C, return to the environment of the late stage of gre...

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Abstract

The invention discloses a method for delaying the hatching of F1 hybrids of incubated silkworm eggs in hatching. The F1 hybrids of silkworm eggs in hatching are subjected to three-section type low-temperature preservation, and graine embryos of the F1 hybrids of silkworm eggs of mulberry silkworms are grown through the hatching processing to a body pigmentation stage, and then are continuously preserved at the certain environment temperature; 10 silkworm eggs boxes are bundled by a plastic rope, and put in a double-layered black cloth bag wrung after being soaked in water, and the silkworm eggs in the 10 silkworm eggs boxes are uniformly shaken and horizontally placed; and the black cloth bag wrapping the silkworm eggs boxes is put in a certain temperature environment for preservation, and then is transferred in a refrigerator for refrigeration. Under the condition of not influencing the hatching rate and the growth of the F1 hybrids of hatched silkworm eggs, the gathering data of newly hatched silkworms is delayed by 1 to 25 days so as to be favorable for adjusting the production data of silkworm cocoons, and to reduce the influence of the natural disaster and the temperature anomaly on the growth of mulberry leaves and the influence of the silkworm poisoning and the silkworm disease and other disasters on the growth of the silkworm cocoons, and the method disclosed by the invention is a safe emergency disposal technology for sericulture, and has the hatching rate of more than 95%.

Description

technical field [0001] The invention belongs to a method for preserving silkworm eggs of the silkworm, in particular to a method suitable for accelerating the hatching of the middle-generation hybrid silkworm eggs and delaying hatching. Background technique [0002] Silk is a great invention in ancient China and has become a cultural symbol of China with world influence. Sericulture has a history of more than 5,000 years in China. Fresh mulberry leaves are still used to raise silkworms. This is an important symbol of natural and precious silk products. Based on this technical feature, in the process of large-scale production of silkworm cocoons at home and abroad, in order to make full use of mulberry leaves and effectively prevent silkworm diseases, the production of silkworms in various climate zones relies on a set of strict plans to arrange silkworm hatching Time, the point of which is to synchronize the growth of silkworms with the growth of mulberry trees, so as not t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/04
Inventor 佘柳涛薛也
Owner 如皋市蚕桑技术指导站
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