Incubation method for enhancing day hatchability rate of silkworm eggs
A technology of hatching rate and silkworm eggs, which is applied in the field of sericulture, can solve the problems of multiple batches, differential adjustment, neglect of timely regulation, etc., and achieve the effect of high hatching rate in one day, accurate adjustment control, and superior technical functions
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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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